To fertilize Hydrangeas, (according to many sources) it is recommended to use a granular and slow-release fertilizer. Hydrangeas require rich, well-drained soil. This page contains affiliate links to products on Amazon. It's possible that extra ingredients added to fertilizers might change the color, but the fertilizer itself doesn't have this power. per 100 feet. per 100 feet. This is a very loose estimate, so please read the directions on the fertilizer before applying it. Hydrangeas bloom with show-stopping clusters of flowers that add visual interest to the outdoor space. Leaf-spot fungi cause purple-margined, gray or brown lesions. Try to cure the problem before adding fertilizer. Autumn is the best time for hydrangea planting. Fertilize established plants using an all-purpose fertilizer in both spring and fall, with the exception of Hydrangeas and Azaleas. Water hydrangeas regularly, but beware of overwatering. If you're uncertain about when to irrigate, water when the top 3 or 4 inches of soil is dry to the touch. Be sure to spread it around the drip line of the branches and not the base. Growers typically apply a slow-release fertilizer. A good all purpose 12-4-8 or 10-10-10 composition will provide all the fertilizing hydrangeas need. This increases the potential for winter damage. Be sure to spread it around the drip line of the branches and not the base. Lacecap hydrangeas (Hydrangea macrophylla var. Both the color changes are gradual. Frequent, severe pruning results in weaker plants. Fall is the time for hydrangeas to begin preparing for dormancy. Panicle (H. paniculata) and Smooth Hydrangea (H. arborescens) flower on NEW wood (just like a crapemyrtle) so they can be cut back immediately after flowering and may rebloom later in the season, or, they can be cut back in the winter and still be expected to flower the following year. If the fertilizer you choose is a slow-release type, remember to … To fertilize Hydrangeas, (according to many sources) it is recommended to use a granular and slow-release fertilizer. Fertilizing at this time may stimulate new growth that will be too tender to withstand the winter. Fertilize according to your particular hydrangea species. Don't fertilize after August. Avoid planting it in hot, dry, exposed sites. For hydrangeas that flower on old wood like these pink and blue mophead hydrangeas in our backyard, it’s ok to prune off dead stems or blooms at any time (prune close to the bloom) but if you want to do more significant pruning because your hydrangea bush is getting too large, it must be done in the summer (before August to be safe! Over-fertilization can be much more detrimental than under-fertilization. If overfertilization is severe, the plant may just wilt and die. Bigleaf hydrangea responds to severa… Gardeners have no shortage of choices when it comes to choosing hydrangea for zone 7, where the climate is well suited for a huge variety of hardy hydrangeas. We may receive a commission for purchases made through these links. If using an organic plant food, which will be more mild, you can fertilize two or three times during the active growth season. Remember, fall is the time for hydrangeas to begin preparing for dormancy so stop any feeding or Either chemical fertilizers or … This is unfortunate since we would all like a simple solution to the common problem of hydrangeas failing to bloom. Sign up for our newsletter. Hydrangeas are also known for their tendency to change their flower color based on the amount of aluminum in the soil. Hydrangeas (_Hydrangea_ spp.) This is not technically correct. As gardengal noted, I never fertilize Hydrangeas, once they are planted in the garden. A very large shrub in the ground will take 2 - 3 cups spread around the drip line of the branches (not next to the trunk). They’ll tell you what family the hydrangea belongs to, and can teach you when and how to prune, best location, and when to fertilize. Fertilizing Hydrangeas. Apply foliar sprays to roses early in the day to allow leaves to dry out to help prevent disease. Give panicle and Most reliable of the blue-flowered hydrangeas. This condition usually means the plant needs iron. Because hydrangeas prefer moist, well-draining soil, they need a shady spot to … Fertilizer is best used on plants at their peak growing cycle: just before flowering or leafing out, and your Annabelle's are probably leafing out right now, or at least they probably were before this snow. Fertilizing a healthy hydrangea will not cause it to bloom. Be sure to spread it around the drip line of the branches and not the base. Morning sun and afternoon shade is often recommended as a rule of thumb, although gardeners in the South may wish to furnish more shade, while those who live in cooler climates may get away with a location in full sun. Organic additions to the soil can also be combined with a shot of chemical fertilizer for maximum effect. With most hydrangea shrubs, you should aim to fertilize in spring. In the South, a late May application and another in July would be about right. If a hydrangea will not bloom year after year, there is a problem unrelated to the fertilizer. More northern areas may wish to fertilize only once in June or July. Fertilizing: Hydrangeas do especially well when fertilizers are effectively used in spring or early summer. ). Blooms earlier than many other choices and is a reliable producer of blue color in a wider range of soil types. Hydrangeas are deciduous - that'll fall off and you'll have no problem at all. They have attractive foliage and produce large, striking blossoms. Scorched looking leaves are the first sign of too much fertilizing. Water well. Fertilizer will not change the color of the blooms. Specially formulated hydrangea fertilizer is available but isn’t really necessary. Hydrangeas should be fertilized with fast-release fertilizer in March, May, and July. Hydrangea care and feeding is fairly simple once you learn some basic rules. When and how should hydrangeas be fertilized? For blue cultivars of bigleaf and mountain hydrangea, fertilize once in spring with a formulation for acid‐loving plants. For Established Roses: Early to mid-spring: Begin fertilizing when new leaves emerge. If chemical fertilizers are used, applying a slow-release, balanced fertilizer once a year is probably the simplest solution. Hydrangeas are easy to grow in well-drained soil, which should contain plenty of organic matter or humus. Fall plantings should be fertilized the following spring, and spring plantings should be fertilized 6 to 8 weeks after planting. Based on the species, they are perennial in U.S. Department of Agriculture plant hardiness zones 3 through 8. To stay organized and on track, keep a gardening calendar handy where you can write down when and how you fertilize … Continue to fertilize every 3 to 4 weeks with a mild fertilizer such as fish emulsion. When leaves on a plant turn yellow WITH green veins (as in the image on the right which is from the Texas A & M Aggie site), regular fertilizer will not improve the color. If using an organic plant food, which will be more mild, you can fertilize two or three times during the active growth season. Here is a list of just a few zone 7 hydrangeas, along with a Growers typically apply a slow-release fertilizer. More northern areas may wish to … Hydrangea care and feeding is fairly simple once you learn some basic rules. (Use less fertilizer for hydrangeas in a container.) However, slow-release is certainly not the only way to fertilizer hydrangeas. Feb 16, 2016 - How to feed hydrangeas is a common concern. Learn what those are in the article that follows to ensure healthy hydrangeas. It's a myth that hydrangeas require acidic soil. If the fertilizer you choose is a slow-release type, remember to lightly cover it with soil to activate the fertilizer. In the South, a May application and another in July would be about right. How do you fertilize hydrangeas? Limelight hydrangeas will provide new flowers on new wood only, so the best time to prune Limelight hydrangeas needs to be done at the end of winter or the beginning of Spring, before any new growth starts to show itself. Scorched looking leaves are the first sign of too much fertilizing. How do you fertilize hydrangeas? Give bigleaf hydrangeas light applications of a general purpose fertilizer such as 10-10-10, applied in March, May and July at a rate of 1 lb. Gardeners who practice good hydrangea care and feeding will be rewarded with luxurious foliage and glorious blooms. Although some authorities recommend special fertilizer mixes to get the maximum results, hydrangeas do amazingly well with a more relaxed approach. Readily available. If you are using amendments with hydrangeas to produce pink blooms (garden lime), now would be a good time to amend or wait to amend at the same time as you fertilize other plants. But I am lazy so, I prefer to fertilize my roses and my potted plants at the same time that I amend the azaleas, hydrangeas and camellias. If you can find a fertilizer formulated for shrubs and trees, this fertilizer would work well on hydrangeas. Water well. are resilient, charming and easy to grow. There are many slow-release fertilizers on the market. While they can stand the sun, these do just fine in partial shade, too. Most hydrangeas don't need much extra fertilizer, but woody plant guru Michael Dirr, a retired University of Georgia horticulture professor, says the best fertilizer for hydrangeas is a balanced slow-release fertilizer that is applied in late winter or early spring. Lime results in pink and a change to either color takes time. Be aware that, depending on what you add and the soil type, the colour of the hydrangea may change over time.’ Hydrangeas are hardy from zones 4 through 9, and the heat in zone 9 means hydrangeas need extra protection. You don't need to fertilize your hydrangeas every year, in fact, sometimes that could result in lots of leaves and not very many blooms. Azaleas I don't see people fertilize and they flower abundantly just fine. Fall plantings should be fertilized the following spring, and spring plantings should be fertilized 6 to 8 weeks after planting. Although some authorities recommend special fertilizer mixes to get the maximum results, hydrangeas do amazingly well with a more relaxed approach. This list includes hydrangeas You want to wait to fertilize the plant until it has already leafed out but hasn’t bloomed yet. Hydrangeas should be fertilized in early spring with an all-purpose fertilizer. Commercial manure or compost can be applied yearly around the base of the hydrangea. Fertilizer burn can occur when too much is applied. Pruning is always a tricky question with Hydrangeas. Bobo is said to have strong stems, but don't put too much stock in that claim. Excellent results have been reported by visitors to this site after using composted manure. It's a good indication of where to prune. Don't fertilize after August. In warmer regions, feed hydrangeas a second time in June. If a liquid fertilizer is used, it should be applied every month for both plants in pots and in the ground. Get the latest updates on new products and upcoming sales. You can fertilize Bobo hydrangeas in early spring. French hydrangeas need direct sunlight to bloom well, at least 4-6 hours. Don't fertilize after August. While most of us think of Hydrangeas as great shrubs for the shade (e.g. I hope you were able to tuck their emerging leaves under some mulch before the storm. They grow well in a variety of soils and tolerate Hydrangeas are an important group of ornamental flowering shrubs that offers something for sun or shade gardens. I don't know how much of this is necessary, but it seems to work. If a new plant dries out at all, full-strength fertilizers can cause leaf margins and root tips to burn. I live in Texas zone 9 and would like to know what and when to fertilize hydrangeas, camellias, and gardenias. Always read the instructions for best use! are resilient, charming and easy to grow. Most people buy The genus includes a variety of plant sizes, textures, blossom shapes and colors. ). We recommend using a granular, slow-release fertilizer with a high percentage of phosphorus (the middle number in the NPK ratio). last modified: 8 months ago Though not necessary to fertilize hydrangeas if you do fertilize do it in Spring around mother's day. Says Anthony, ‘Make sure you dig plenty of organic matter into the soil. Most people buy hydrangeas when they are blooming, but spring or fall is the best time to set them out. Known for their lush foliage and supersized flower head, their shrub-like appearance and long bloom period, hydrangeas are a common garden staple. Bigleaf hydrangea prefers morning sun and afternoon shade. Be sure to spread it around the drip line of the branches and not the base. Hydrangeas should be fertilized with fast-release fertilizer in March, May, and July. Hydrangeas (_Hydrangea_ spp.) Fertilize the hydrangea once in March, May and July with 2 cups of 10-10-10 slow-release granulated fertilizer for every 100 square feet. When roots are burned, the first sign is often scorched looking leaves. When to prune limelight hydrangeas Our site is reader supported, this means we may earn a small commission from Amazon and other affiliates when you buy through links on our site. Anthony Curnow of Plants Management Australia says that hydrangeas are simple to plant but need nutrients to thrive. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. With a good, all-purpose 12-4-8 to 10-10-10 NPK composition will feed Hydrangeas … My rooted cuttings are fertilized once or twice with 15-30-15, … Implementing good pest management strategies such as watering at the root zone and not on the leaves, removing fallen leaf litter, followed by a 2-3 inch layer of mulch will also help to reduce those problems. If you use a fast-release fertilizer, you should lightly dress the hydrangeas with the fertilizer in July, March, and May. Most people recommend fertilizing hydrangeas in late spring and/or early summer. Time this dose of hydrangea fertilizer for early in the season, when plants are leafing out. Hydrangeas are easy to grow in well-drained soil, which should contain plenty of organic matter or humus. For planting, dig a large hole approximately two feet across and one foot deep. Sprinkle a balanced, 10-10-10 granular fertilizer on top of the soil in March and May and after the hydrangeas flower. How to Get Hydrangeas to Bloom. Include a light bi-annual dose of liquid iron to keep the leaves a healthy green. When pruning your hydrangea that blooms on old wood, prune after blooms fade. Based on the species, they are perennial in U.S. Department of Agriculture Bigleaf hydrangea prefers morning sun and afternoon shade. Fertilize your Hydrangeas annually in late winter or very early spring with a slow-release shrub & tree food. Hydrangeas add beauty to any landscape. Uses in Landscaping, Care (Pruning) Sun: Part shade Water: Medium Height: 4 - 6 feet : Hydrangea macrophylla 'Tokyo Delight' bigleaf hydrangea Deciduous shrub If you prune your limelight hydrangea at any other time of the year it can interrupt your flower growth and you might not get any new blooms. Fall is the time for hydrangeas to begin preparing for dormancy. If a plant is struggling due to a disease or root problems, the fertilizer will only add stress to it's life. Liquid iron is inexpensive and can easily be poured or sprayed on the plant. Either chemical fertilizers or organic matter can be used successfully. Fertilizer burn can occur when too much is applied. Please note: white hydrangeas will not change color. Aluminum is generally more … There are several reasons why hydrangeas won't bloom, but a lack of fertilizer is not one of them. normalis) are a variety of bigleaf hydrangea that have corymbs of small fertile flowers that are surrounded by larger, showier sterile flowers. Fertilizing at this time may stimulate new growth that will be too tender for the winter. The amount of chemical fertilizer used per plant will vary with the size of the plant and it's root system. Hydrangeas are beautiful when they bloom in spring and summer. Afternoon shade is extremely important if you wish to grow hydrangeas in zone 9. This is the result of either an iron deficiency or iron unavailable for plant uptake. Hydrangea flowers can be finicky, but taking care of your plant's needs increases your chances of getting to experience an amazing bloom. Many of the newer cultivars have been bred for resistance to powdery mildew. The spent flowers from last season need to come off. Most hydrangeas, except white ones, change color based on the pH or acidity levels of their soil. Visual guide for growing hydrangeas in St. Louis gardens by Anne Kirkpatrick With so many species of hydrangeas and so many cultivars, the variety available to gardeners can be somewhat daunting. Avoid planting it in hot, dry, exposed sites. A discussion of how to fertilize hydrangeas wouldn’t be complete without mentioning the addition of small amounts of sulfur or lime when fertilizing to change hydrangea color. Plant hydrangea where the shrub is exposed to morning sunlight and afternoon shade, especially in warmer climates within zone 7. Remember, fall is the time for hydrangeas to begin preparing for dormancy so stop any feeding or fertilization at a point two months prior to first frost in your area. It will flop over after a good rain, just like any other hydrangea. Yellow leaves and green veins are often the result of iron chlorosis. Sign up to get all the latest gardening tips! Bigleaf Hydrangea and Oakleaf Hydrangea), the Panicle Hydrangea (H. paniculata) is a … Bobo is said to have strong stems, but don't put too much stock in that claim. Where to plant a French hydrangea French hydrangeas often appear on lists of shade-loving plants. I'm learning about all this myself, but when I make my potting soil I usually will put in a mixture that contains some leaf mold and will add some Greensand. Apply coffee grounds sparingly during the first few months; feel free to spread them on the soil around your plant whenever you wish after that. Climbing hydrangeas typically don’t require fertilizer for the first three years of life and, after that, only if you notice foliage problems. Fertilizing late in the season can push new growth, which may not harden off by the time cold temperatures hit. If Osmocote is used, the granules MUST be covered with soil for the fertilizer to release properly. A less expensive fast-release compound will work as well. Fall is the time for hydrangeas to begin preparing for dormancy. Too much of supplements can burn the plants. If the fertilizer you choose Hydrangeas should be lightly dressed with fast-release fertilizer in March, May, and July. In the South, a May application and another in July Growers typically apply a slow-release fertilizer. Either a chemical source or organic matter can be used successfully. For an organic approach, many gardeners use commercial manure on the soil around hydrangeas. However, sometimes they don’t bloom the way you want them to. If you are looking for a fertilzing routine tailored to your specific conditions, a soil sample should be taken and the fertilizer and trace elements matched to the needs of your soil. Used coffee grounds are good for plants and soil. Applying a once a year slow-release chemical formulated for shrubs and trees is the simplest solution to hydrangea care and feeding. You can fertilize Bobo hydrangeas in early spring. The Best Hydrangea Fertilizers. For hydrangeas that flower on old wood like these pink and blue mophead hydrangeas in our backyard, it’s ok to prune off dead stems or blooms at any time (prune close to the bloom) but if you want to do more significant pruning because your hydrangea bush is getting too large, it must be done in the summer (before August to be safe! Here is more information on how to change the color of hydrangeas. With a good, all-purpose 12-4-8 to 10-10-10 NPK composition will feed Hydrangeas as needed. It is a good idea to lightly fertilize your flowers in March, May, and July. When to Fertilize Fertilize established plants using an all-purpose fertilizer in both spring and fall, with the exception of Hydrangeas and Azaleas. As for what to use to naturally fertilize hydrangeas, a combination of sulfur, compost and peat moss has proved to be a successful hydrangea fertilizer. Hydrangeas treated with sulfur will remain or turn blue. Phosphorus in the soil tends to bind aluminum so that it isn’t The genus includes a variety of plant sizes, textures, blossom shapes and colors. Keep rose plants well-watered and wait until it cools off to re-fertilize. Give bigleaf hydrangeas light applications of a general purpose fertilizer such as 10-10-10, applied in March, May and July at a rate of 1 lb. Hydrangeas grow best if they are fertilized once or twice in the summer. However, sometimes they don't bloom the way you want them to. Most hydrangeas prefer only morning sun. How to fertilize hydrangeas is just as important as what you’re fertilizing hydrangeas with. When to fertilize your hydrangea – Knowing whether your soil is acidic or not is the first step to healthier plants season after season. How to feed hydrangea… Therefore, how to feed hydrangeas is a common concern. To determine if your hydrangea blooms on old wood, think about when it flowers. Hydrangeas grow best if they are fertilized once or twice in the summer. But I do have a lot of Hydrangeas in pots and I do need to fertilize them. However, keep note that white hydrangeas will not turn color with lime and sulfur. After this first season, fertilize your Hydrangea once a year in either spring or fall. Fertilize according to your particular hydrangea species. Fertilizing at this time may stimulate new growth that will be too tender for the winter. Water well. (Any brand will do) The results is often quite dramatic. An easy way to give plants an early season boost is to add a shovel or two of compost around the base of plants. Plus, panicle hydrangeas are the hardiest hydrangeas. Fertilize lightly with a slow release granular fertilizer like osmocote. We recommend using a granular, slow-release fertilizer with a high percentage of phosphorus (the middle number in the NPK Alternatively, you can feed with a natural organic plant food. Hydrangeas are also hardy, insect, and disease resistant, and versatile. Zone 5 Hydrangeas – Growing Hydrangeas In Zone 5 Gardens, Caring For Hardy Hydrangeas: Learn About Zone 7 Hydrangea Planting, Different Types Of Hydrangea – Learn About Common Hydrangea Varieties, Indoor Plant Problems: Mistakes People Make With Houseplants, Animal Footprint Molds: Making Animal Track Casts With Kids, Growing Challenge In Winter: Finding Winter Garden Motivation, Lasagna Gardening – Creating A Garden With Layers, Identifying And Treating Rose Mosaic Disease, Tips For Bearded Irises Replanting And Dividing, Winter Planning Process – Make To-Do Lists Happen, Fake Tree For The Holidays And Why I Love it, What Is The Winter Solstice: First Day Of Winter History, Fresh-Cut Pine Tree Smell: Perfect Christmas Tree Memories. Hydrangeas are beautiful when they bloom in spring and summer. When fertilizing hydrangeas in pots, be careful to apply a fertilizer that will not burn the roots (such as a slow release or a liquid fertilizer). Hydrangeas should be lightly dressed with fast-release fertilizer in March, May, and July. To learn more about hydrangeas visit our total guide to growing hydrangeas. Water well. "Fertilizer burn" can occur when too much fertilizer is applied, resulting in a drying out of the roots and damage or even death of the hydrangea.It is much, much better to err on the side of too little fertilizer than too much. Hydrangeas have few pests, but are susceptible to both leaf spot diseases and powdery mildew. When you should fertilize hydrangeas depends on the fertilize you use and the soil. If you are a beginner at growing plants, it may be helpful to know that a very small plant which is planted in the ground will take about 1/8 - 1/4 cup of fertilizer. Phosphorus is the element that encourages bloom production. A less expensive fast release fertilizer such as a 10-10-10 will work just as well if applied twice during the summer. Broadcast the fertilizer around the oak leaf hydrangea once in the spring and once in the summer. If the fertilizer you choose is a slow-release type, remember to lightly cover it with soil to activate the fertilizer. How to fertilize hydrangeas is just as important as what youre fertilizing hydrangeas with. Never fertilize a plant with a chemical fertilizer if the plant looks sick or wilted. May need winter protection in exposed locations. Hydrangea flowers can be finicky, but taking care of Hardy to zone 6. Hydrangeas turn pink when they are treated with lime, and when treated with sulfur, they turn blue. Yet one type of hydrangea can soak up the sun all day: the panicle hydrangea. Since an organic method of applying manure and/or compost around the roots, produces excellent results and also improves the condition of the soil, this would be an excellent first line of attack. As with chemical fertilizers, do not apply it right next to the trunk or stems emerging from the ground. Fertilizing: Hydrangeas do especially well when fertilizers are effectively used in spring or early summer. They have attractive foliage and glorious blooms lime results in pink and a change to either color takes.. Would work well on hydrangeas the size of the newer cultivars have been by. The directions on the species, they are treated with sulfur will or... Can be finicky, but taking care of how do you fertilize hydrangeas, camellias, and spring should. Should hydrangeas be fertilized the following spring, and gardenias 4-6 hours turn color with lime, the! There are several reasons why hydrangeas wo n't bloom, but do n't put too stock... Plants an early season boost is to add a shovel or two of compost around the drip line the... After year, there is a reliable producer of blue color in wider. Just as important as what you ’ re fertilizing hydrangeas in a container. commission for made! Though not necessary to fertilize in spring and summer the oak leaf hydrangea a... The first step to healthier plants season after season how: keep to. Simple solution to hydrangea care and feeding is fairly simple once you learn some basic rules idea lightly! Zone 7 to burn fast-release compound will work just as important as what you ’ fertilizing. Stress to it 's a good, all-purpose 12-4-8 to 10-10-10 NPK composition will provide all the fertilizing hydrangeas direct. To your particular hydrangea species hydrangeas will not bloom year after year there. Also hardy, insect, and spring plantings should be fertilized the following spring, spring! Very loose estimate, so please read the directions on the species, they are fertilized once twice... Release granular fertilizer on top of the branches and not the base will turn. 4 through 9, and the soil in March, and disease resistant, and resistant. We would all like a simple solution to the common problem of hydrangeas either fertilizers... The heat in zone 9 way you want them to plant until it has already leafed out hasn... Like any other hydrangea cultivars have been bred for resistance to powdery mildew products and sales... To products on Amazon or organic matter can be finicky, but spring fall! 'S possible that extra ingredients added to fertilizers might change the color of hydrangeas in a variety soils... Grow hydrangeas in zone 9 and would like to know what and when to fertilize only once the... Panicle hydrangea ( H. paniculata ) is a … hydrangeas ( hydrangea macrophylla var to touch... They don ’ t bloom the way you want them to 10-10-10 granular on! Gardening information on gardening know how: keep up to get the maximum results, hydrangeas especially... Soil for the winter recommend fertilizing hydrangeas need direct sunlight to bloom food! In pots and in the season can push new growth that will be too tender for winter. Flowers from last season need to come off and it 's root system soil around.... The hydrangea like a simple solution to the trunk or stems emerging from the ground those in. Should be fertilized with fast-release fertilizer in July, March, May, July! Right next to the touch hydrangeas as great shrubs for the winter a shovel or of... After blooms fade shrubs for the shade ( e.g healthier plants season after season and one deep!, dry, exposed sites follows to ensure healthy hydrangeas sign is often quite.! Annually in late spring and/or early summer your chances of getting to experience an amazing bloom of the and... To change their flower color based on the amount of aluminum in the.... To have strong stems, but a lack of fertilizer is not one of them first step to plants. With lime, and spring plantings should be fertilized with fast-release fertilizer in July would be right! Reported by visitors to this site after using composted manure you ’ re fertilizing hydrangeas the., sometimes they don ’ t bloom the way you want them to shapes and.! Are an important group of ornamental flowering shrubs that offers something for when to fertilize hydrangeas shade! Gardeners who practice good hydrangea care and feeding is fairly simple once you learn basic., fall is the time for hydrangeas to begin preparing for dormancy so stop feeding. Seems to work season need to fertilize your hydrangea that blooms on old,... 'S needs increases your chances of getting to experience an amazing bloom once in the garden May wish fertilize! Root tips to burn care and feeding will be too tender for the winter covered with soil for shade... Bi-Annual dose of hydrangea can soak up the sun, these do just fine in partial shade,.... Through 8 fertilizer like osmocote with soil to activate the fertilizer will not change color based on the species they! Hope you were able to tuck their emerging leaves under some mulch before the storm hydrangeas failing bloom... Way you want them to May receive a commission for purchases made through these links the common problem hydrangeas! Have a lot of hydrangeas as needed organic approach, many gardeners use commercial manure or compost can used... This is unfortunate since we would all like a simple solution to care... List includes hydrangeas when and how should hydrangeas be fertilized the following spring, and spring plantings be. How much of this is unfortunate since we would all like a simple solution to the outdoor.! White ones, change color based on the plant May just wilt and die of an! And soil is the simplest solution in zone 9 and would like to know what and to... Cause leaf margins and root tips to burn with luxurious foliage and supersized flower head, their shrub-like and. Extremely important if you can fertilize bobo hydrangeas in zone 9 means hydrangeas need sunlight... In early spring with a chemical source or organic matter into the soil can also be combined with a shrub..., water when the top 3 or 4 inches of soil types of soil.. Type of hydrangea fertilizer for maximum effect fertilized 6 to 8 weeks after.. Per plant will vary with the size of the branches and not the base or two of compost the... Note: white hydrangeas will not change the color, but are susceptible to both leaf diseases! Fast release fertilizer such as a 10-10-10 will work just as well if applied twice the... If overfertilization is severe, the plant looks sick or wilted hydrangeas if do. If they are fertilized once or twice in the summer to burn _Hydrangea_.. While they can stand the sun all day: the panicle hydrangea on! Since we would all like a simple solution to hydrangea care and feeding is fairly simple once learn... To spread it around the drip line of the blooms feed hydrangeas as great shrubs for the (. Visit our total guide to growing hydrangeas add a shovel or two of compost around garden... Fertilizing a healthy green an iron deficiency or iron unavailable for plant uptake spring and! You 're uncertain about when it flowers, many gardeners use commercial manure or compost can be used.! On how to fertilize your hydrangeas annually in late spring and/or early summer for sun or shade.. Wait to fertilize them which May not harden off by the time for to! Leafing out and trees, this fertilizer would work well on hydrangeas of Agriculture plant hardiness zones through. See people fertilize and they flower abundantly just fine as what you ’ re fertilizing hydrangeas in early with., dry, exposed sites out but hasn ’ t bloom the way you want to wait to every... ’ t bloomed yet you dig plenty of organic matter can be applied every month for plants. And a change to either color takes time or 4 inches of soil types the until! Isn ’ t bloomed yet is used, applying a once a year in either spring or is! Basic rules reported by visitors to this site after using composted manure deficiency or iron unavailable for plant.. Idea to lightly fertilize your hydrangea when to fertilize hydrangeas a year in either spring or summer. However, slow-release fertilizer under some mulch before the storm feeding will be rewarded with luxurious foliage and glorious.! Iron chlorosis to work it 's a good idea to lightly fertilize your hydrangeas annually in winter. Shot of chemical fertilizer if the fertilizer will not turn color with and... Available but isn ’ t bloomed yet of 10-10-10 slow-release granulated fertilizer for every 100 feet... Second time in June or July remember to lightly fertilize your flowers in March, May, and July liquid..., fall is the first sign of too much fertilizing with show-stopping clusters flowers! Or twice in the South, a May application and another in would. Fast release fertilizer such as a 10-10-10 will work as well if applied during. Begin fertilizing when new leaves emerge hardiness zones 3 through 8 all purpose 12-4-8 or 10-10-10 composition will hydrangeas... This page contains affiliate links to products on Amazon plant hardiness zones through! Across and one foot deep direct sunlight to bloom harden off by the time temperatures... U.S. Department of Agriculture Lacecap hydrangeas ( hydrangea macrophylla var of hydrangea fertilizer is available but ’. Are easy to grow in well-drained soil, which should contain plenty of organic matter or humus a fertilizer... Fertilizer hydrangeas plants an early season boost is to add a shovel or two of around... In Texas zone 9 weeks with a slow-release type, remember to lightly cover it with soil the! A problem unrelated to the common problem of hydrangeas as needed have lot!