Hydrangia care
I have very large healthy Hydrangia foliage but no bloom. What can I do?
First thing you have to determine is what kind of hydrangea you have. Some of the common reasons for blooming failure are 1. Too much shade-all grow in partial shade but too much will affect blooming. 2. If you live in the cooler climates, the flower buds could have had winter damage. Only smooth(H. arborescens) and panicle(H. paniculata) hydrangea bloom on new wood; bigleaf hydrangea (H. macrophylla) blooms primarily on old wood which means that they need to set their buds in one year and then make it through the winter to bloom the next year. In addition some cultivars of bigleaf also bloom on new growth. 3. Pruning - be aware of the timing. Judicious pruning is important. Too much pruning will loose next years buds. If you prune to reduce the height, do so right after blooming . If you prune to thin out the plant, cut some of the oldest stems to ground level in the early spring(dormant season). Most hydrangeas grow well with no pruning at all.

When is the best time to cut back Hydrangeas?
The best time to prune is early spring and immediately after flowering. It helps to know what kind of Hydrangea you have to know how much to prune.
H.arborescens blooms on new wood, so you can cut it down to 1/2 size or 6″ above the ground in the winter or early spring. No pruning will give you less vigorous growth and smaller flowers.
H. paniculata - same as H. arborescens.
H. macrophylla Bigleaf hydrangea- blooms on old wood (except for Endless Summer, Penny Mac and All Summer Beauty) do not prune, only to remove spent flowers. Cut right below the flower head. Any other pruning will reduce flower production for the next season. The more you cut the less flowers you will get.
H. quercifolia, Oakleaf hydrangea blooms on old wood -prune same as H. macrophylla. Prune in early spring to shape or thin the plant at the expense of flowers.
There is a great collection of Hydrangeas here to buy:
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How do I know what kind of hydrangea I have, and how do I know when to prune if it doesn’t bloom?
Here are some of the varieties of hydrangeas: Smooth hydrangea (Hydrangea arborescens) is hardy zone 4-9. This native shrub gets 3-4 ft. tall and has a rounded spreading form. The leaves are large and rounded, deep green. The flowers are cream colored rounded clusters . ‘Annabelle’ and ‘Grandiflora’ are popular varieties. It blooms on new wood so if you cut the old stems to the ground in late winter you will still have flowers the coming season.
Panicle hydrangea(Hydrangea paniculata) is hardy zone 3-8. It is the most hardy of all hydrangeas. This multi-stemmed shrub grow 10-20 ft. tall(some cultivars are smaller). The leaves are oval, dark green and deeply veined. It has cone-shaped clusters that have a blend of small and large ivory- white flowers ,that change to pinkish-bronze with age. Some varieties are ‘ Grandiflora’ or PeeGee, ‘Tardiva’, Brussels Lace’ and ‘Pink Diamond’. It also blooms on new wood.
Bigleaf hydrangea(H. macrophylla)is hardy zone 6-9. It has a mounded, wide spread form that grows 3-6 ft. tall. Leaves are deep green, large-oval shape. It is known for its lush flowers that come either in the globe-shaped form or lacecap blossoms. The “mophead” shapes are large, rounded blooms that consist of showy flowers ;whereas the lacecap group have flat showy flowers with small starlike flowers in the center. Among some of the varieties are ‘Nikko Blue’, Forever Pink’ and ‘Glowing Embers’. These bloom on old wood (last year’s growth) so prune after blooming for height. If you prune in early spring you will lose some flowers. There is a new variety Endless Summer (’Bailmer’) that will bloom on old and new wood and is hardy to zone 4. If you prune this one at the wrong time it will still bloom the next year.
Oakleaf hydrangea (H. quercifolia) hardy zone 5-9. Ths multi-stemmed form grows 6-8 ft tall. Easily recognized by its oakleaf-shaped floliage and long conical clusters of flowers. Blooms on old wood, so prune right after flowering.
Comment by mpbeebe — 10/28/2004 @ 12:31 pm
blooms were blue; fertilized yard, blooms went ugly purple. i want blue back.
Comment by jamie nixon — 1/4/2005 @ 11:23 am
For cut flowers for the table.I bought some hydranga flowers and they went droppy. Is there anything I can do to bring them back. Also from my garden when I cut some from my hydranga bust, what can I do to keep them looking full and nice. One more question; and if I want to dry them, what is the best thing to do.
Thanks Corinne
Comment by corinne — 3/26/2005 @ 3:02 pm
I have a Tokyo Delight hydrangrea. Does anyone know what “type” this is so that I can determine how best to prune?
Thanks.
Comment by Betty — 4/3/2005 @ 8:32 am
The leaves curl and turn black or dark on the edges.
Comment by Anonymous — 4/28/2005 @ 4:07 pm
Hydrangas: Are they poisonous? I want to plant some in a garden visited by elders with dementia. Sometimes they “eat the daisies.”
Comment by Victoria Zander — 5/8/2005 @ 6:29 pm
I just bought a pink hydrangea. What kind (numbers ie 10-10-10) of fertilizer should I use to keep it pink.
My next door neighbor has purple hydrangea and I have Med Blue…we swapped and the purple turn blue when I planted at my house…How can I get purple back. Donna Peavy
2007-2-9
Tawnie ( mccrarytawnie@comcast.net / )
I bought green, pink,and purple plants.The next year they all bloomed blue. How can I turn them back to their original colors?
Comment by Ida Watson — 5/21/2005 @ 2:59 pm
It is June 4th in NJ, Is it OK to transplant a Hydrangea
Comment by Dan Trivino — 6/4/2005 @ 6:48 am
My plant was fine until a few days ago when I fed it with an acid fertilizer. Now the leaves are turning brown at the edge and curling. It is in partial shade & sun. What happened?
Comment by O. Solis — 6/5/2005 @ 8:29 pm
I have a Blue Hydrangea and I do not have a partial sun/shade area in my yard it is in full sun. It has bloomed well but the blooms seem to die rather quickly. Should I be concerned?
Comment by Christina Walker — 6/7/2005 @ 12:25 pm
i have a purple plant that turned blue.I repotted to a bigger container & now its green.My favorite is purple/HELP!!!
Comment by lucretia — 6/15/2005 @ 6:21 pm
What can you do if the leaf edges are a dark brown. This plant has been in the ground about 3 mo & was planted with blooms on it. It was purchased locally at a garden center.
Comment by joe wilson — 6/20/2005 @ 5:06 am
I just planted a pink hydrangea, it’s getting morning sun, some afternoon shade and more sun from about 1 to 7 in the evening. The blooms by the end of the day are droopy and they are fading from a pretty pink to a washed out almost white, the blooms also are browning around the edges. Is it too much sun, or is this expected until it gets established????
Comment by Amy Taylor — 6/22/2005 @ 1:35 am
should the hydrangea blooms be cut off when the flower is spent, and when is it best to do so, when the bloom is completely spent or sooner? At what point on the stem do you cut away the spent bloom? Thank you
Comment by Kiki Kraemer — 6/27/2005 @ 3:17 pm
How do I treat black spot on my hydrangea leaves?
Comment by Edwina Norris — 7/6/2005 @ 8:58 pm
friend says my ugly old lady mauve hydrangeas (variety unknown)will go green/white if I add used coffee grounds at soil level; won’t the acid therein influence blue flowers instead? Thanks.
Comment by katie — 7/17/2005 @ 11:46 am
Wilting Hydrangia leaves. Plant is pot and not exposed to hot sun. Was a transplant from the ground but now in a container. Leaves continue to wilt even when watered.
Comment by Diane Powell — 7/19/2005 @ 4:45 pm
Hi
I have two blue Nikko hydrangea bushes which I just bought about a month ago. Each is flowering very well, my only concern is that these bushes are very low to the ground, less than 2 feet tall. I planted one on each side of the front doorsteps, thinking that each would grow about 4-6 feet high. Is this a realistic expectation? If so, how long will it take for them to actually look like bushes? My hydrangeas are literally crawling on the ground at this point. Would using sticks to hold up the heavier branches help at all? Any help on this will be GREATLY appreciated.
Jan Humphrey ( hgunner24@wmconnect
I have started 5 Nikko Blue Hydrangeas from cuttings and they are in 4″ pots now. How do I take care of them for the winter?
Comment by helen Sandor — 8/17/2005 @ 9:11 am
What is the best time of year to plant hydrangeas?
Comment by Deb Johnson — 8/18/2005 @ 6:31 am
I have 2 hydrangea bushes that seem to bloom whenever they feel like it. This year one did bloom but I only had two balls of blooms on it, and the other one did not bloom. They both get plenty of light, but they just seem to bloom 3 to 4 years at a time. I also took an agriculture class in high school and the teacher told me to just cut all the old stems off in late fall to rejuvenate it. Is she right? and what do you think is wrong with my hydrangeas?
It depends on the type of hydrangea you have. It may be that your hydrangeas were affected by a freeze and or pruning. If you have a H. macrophylla which blooms on last years (OLD ) growth a freeze will kill the next season’s flowers. You may have to mulch and protect your plants for the winter.
Comment by Maiku — 9/21/2005 @ 1:19 pm
I LIVE IN PHOENIX AZ. wHERE SHOULD i PLANT MY PINK HYDRANGEA. wILL IT TAKE FULL SUN ALL SUMMER OR SHOULD I PLANT IT IN PARTIAL SHADE?
hOW MUCH AND HOW OFTEN SHOULD I WATER IT.
Because the temperatures get so hot in Phoenix, I would plant it in sun/partial shade(morning sun and afternoon shade). Water according to the plant’s need. If you have hot, windy days increase your watering. The general rule of thumb is 1 inch per week of deep soaking not overhead sprinkling.
Comment by EDNA — 9/22/2005 @ 7:14 pm
i just bought and planted a pitiful annabelle hydrangia (big leaf) today - october! should i add fertilizer at this point or wait until sping? also, since it is in a sad state, should i cover it this winter?
Comment by cindy — 10/9/2005 @ 6:12 pm
We bought what was labeled a spreading hydrangea. It is low and spreading very slowly along a fence. We planted it 3 years ago. How do care for it? Should we dead head it and if so when? Should we prune branches or old leaves and if so when?
gary anderson ( garyandersn@aol.com
The tag on my plant says hydrangia petiolaris. It’s been in 2 years, the vines are healthly looking, bright green, but nothing that looks like a flower or bloom. I’m in partial shade, but vines look great as well as leaves. Where are my flowers? I did not trim it back last year…Thanks..can you help me? I’m in upstate new york, sidney to be exact.
Comment by John Roberts — 10/17/2005 @ 1:56 pm
I have a“macrophylla” hydrangia that I have in a pot outside. How do I care for it over the winter here in Ohio? I understand it is poisonous and I have a dog so am concerned about bringing it inside. Anyway to save it by putting it in a shed to protect it?
Yes, you can keep it dormant in a garage or area where it won’t freeze. Wrap the container with insulation to keep the roots from freezing.
Comment by Sandy Fitzhugh — 11/3/2005 @ 5:42 am
A very good page for someone like myself who is trying to grow some hydrangias. It is January 23 and I live in Zephyrhills Florida. I purchased a beautiful medium pink hyrdrangia from the garden store last night. I would like to plant it outside. The front of my apartment faces north, can I plant this now? We very seldom have a freeze alert in this area of Florida. I am not sure of the name of the hyrdrangia, again, it is a medium shade of pink.
Thank you very much for any information that you can give me.
You can plant it outdoors as long as the temperatures don’t fall below 40 degrees. If there is a frost warning, I would recommend covering the plant especially if you have new succulent growth. Cooler temperatures allow for good root development.
Comment by Joanie — 1/23/2006 @ 3:25 am
I bought my hydrangea 2 years ago, when i first bought it it was a gorgeous lilac and purple colour, after planting it in a large pot of it’s own the next summer it had turned a dirty pink colour! which i find very unattractive… how do i get it back to the colour it was? and what soil do i use?
Michele Wexler ( mhwexler@earthlink.net / )
Can pink big leaf plants be changed to blue? Mine plants are dong very well, they are in a very good spot morning filtered sun with afternoon shade. Shoud I remove the blooms when they get old and turn to a greenish color?
What chemical should I use to change my hydrangea from pink to blue?
Comment by keeli roebuck — 4/7/2006 @ 6:37 am
I received a pink Hydrangia plant from a garden centre (Costco). I am not sure what to do with it, should I plant it outside or leave it in the the pot that it came in. There was no care or plant type label. I live in eastern Ontario Canada, very cold winters. Please advise.
Thanks, Leanne
Comment by Leanne — 4/14/2006 @ 5:58 am
I recentely purchased 6 hydrangeas. I left them in the pots for several days and all was fine. A week ago, I planted them in an area that is in the shade until the evening sun. Now all of the blooms are drooping to the ground and all curled up, and the leaves are drooping with some of them brittle on the edges. What did I do wrong? They are getting watered by the sprinkler system in our yard. I have done lots of research on hyrdrangeas before I planted them,and cant imagine what the problem is. Can you help! Please!
Vivian, N. Texas
Comment by vivian — 4/16/2006 @ 1:18 pm
I live in the North East (Massachusetts). Last summer I planted H. Macrophylla. I did not prune the plant before the winter. Now it’s spring (I have not pruned)and the hydrangea looks to be dead. The ends of these “dead” branches are tear drop shape and dry. Are these new buds? Also there are green leaves at the base of the plant. Is it too late to prune? I am confused.
Comment by Kristina Andrzejewski — 5/7/2006 @ 5:16 am
I have a HOBELLA & HOMIGO HYDRANGEA . Could you tell me what type I am dealling with as far as do they bloom on old or new wood. Also, what is the difference between a Hydranga with a small leaf or one with a large leaf, what character differences are there? Thanks a million for any info you can give me. Amanda S.
Comment by Amanda Snyder — 5/19/2006 @ 3:19 pm
What can I do about the white powdery mildew on my hydrangeas? Is it dangerous to the bushes? What caused it? I live in the deep south.
Comment by Janet — 6/8/2006 @ 6:11 am
Zone 10 in July - can I put a shooting star hydrangea outside? If so, what are the optimum conditions for givng it the best chance of thriving?
Mary Ann ( maryannstemen@hotmail.com / )
I have a Shooting Star Hydrangea and I need to know if it is a hardy perennial that I can plant outside. I live in Ohio, and some winters get very cold. Thank You!
Patti ( pattijomcd@insightbb.com / )
I bought a hydrangea plant in a Publix grocery store in Florida. It was called Shooting Star Lacecap white flowers with side shooting white starlike blooms around the edge. I brought it home to Illinois, potted it in a larger pot. It has round white powdery spots on the leaves, maybe mildew? The pics of powdery mildew I’ve seen dust the whole leaf. These are spots on top of leaf between 1/4 and 3/8 inch in diameter. I bought the only plant that didn’t have a tag on it, dang it.
Cindi ( tailz_cindi@yahoo.com / )
I’ve just purchased two Shooting Star hydrangias,also known as Fiji Waterfalls,or Fireworks,one for myself,other a gift.We live in zone 7.Should I plant these in a lrg pot and sit outside and bring them inside during the winter? Or plant them outdoors in my flower garden? If I do plant them outdoors and cover them during the winter,will it not die down each year and result in a much smaller plant? Which is best? Partial Sun? Will this plant ever need pruning? Thanks!
Comment by Perry — 7/3/2006 @ 2:42 am
How can I propogate hydrangia? how much of the branch do i cut to replant to make more plants. and what is the best dirt to use to start it.
Comment by jeffrey — 7/13/2006 @ 12:44 pm
I have no green thumb, but my plants are doing extremely well. I would like sepecific, detailed information on pruning them. I have the hydrangias that bloom all the time.
They are currently “loaded” with blooms, but I do not know how far from the flower to cut off. Some of the flowers are now spent and I want to prune them.
I also am trying to figure out if I need to prune any of the green leaves.
Thanks. Paul
Comment by Paul — 7/30/2006 @ 10:54 pm
I HAVE A QUESTION….WHY DOES MY HYDRANGEA PLANT FORM BUDS AND THEN TURN BROWN AND NEVER BLOOM?
Comment by LOIS PRATT — 8/1/2006 @ 5:16 am
I have three hydrangeas and all three have died back to ground level this fall. One did the same last year. It had one small bud at ground level and I nursed it back to 18″ this year. What is causing them to die to ground level?
.Comment by Jim knapp — 12/14/2006 @ 12:28 pm
i planted my hydrangia plants five of them about a week ago and last night we had a temps below 32 degrees and now they are wilted and maybe even a little brown will they be ok?
Comment by sandra — 4/5/2007 @ 10:33 am
I have one oakleaf hydrangea (got last year) and is doing beautifully. already grew almost 4 feet. What do I fertilize it with and when. I also planted 13 Endless Summer Hydrangea ad they are doing great. What’s for fertilizing then and when. Thanks.
Comment by d. c.Bird — 5/14/2007 @ 3:44 pm
I just bought 4 of the new blushing brides (macrophylla’s) 2 are white and the other 2 are blue. While I haven’t got to enjoy my first bloom just yet something is enjoying my leaves while I’m waiting for my new babies to bloom. Any Idea’s on what it my be and whats safe as a pesticide to put on my plants? I live in the Southeastern part of Guilford County in North Carolina if that’s of any help…..
Comment by Donna — 5/15/2007 @ 8:56 pm
I live in East TN. I planted a pink hydrangia several years ago. The leaves come back each year, but I never get to see the flowers, because the deer eat it. Is there anything I can do to keep the deer away?
Comment by Diane Carr — 6/3/2007 @ 9:14 pm
Thanks so much! How much sun is ok for hydrangias? The patio gets some morning sun. Also, how often should they be watered?
Comment by Leslie — 6/23/2007 @ 4:40 pm
I PLANTED 2 LIME LIGHT HYDRANGEAS THIS YEAR. THEY GET FULL SUN. THEY STARTED OUT FINE, THEN THEY APPEAR TO HAVE THINNED-OUT, HAVE SOME LEAF DROP, BLOOMS ARE VERY SMALL. MY DAUGHERTER PLANTED HERS AT THE SAME TIME – THEY HAVE DOUBLED IN SIZE, BLOOMS ARE HUGE AND GORGEOUS. WHAT’S WRONG WITH MINE? ONE OTHER THING, I’VE NOTICE A WHITE MOTH-LIKE INSECT SO I’VE SPRAYED WITH INSECT. SOAP AND SEVIN. ALSO PLANTED IN THIS BED ARE MORNING GLORIES, MOON FLOWER, PHOLX, BLUE SAGE. ANY ADVICE WOULD BE MOST WELCOMED! THANKING YOU IN ADVANCE…
Comment by Julia Curry — 7/25/2007 @ 6:46 am
My pink Hydrangia in a large container has fared very well the past 2 years. Now, in Dallas, its dormant and we are all ready for its showy early summer blooms. Can I break the root into 2 and repot the 2nd one? I really would love to see them in 2 separate pots.
Comment by Pam Kamath — 1/11/2008 @ 12:24 pm
I should have looked here first, however…we recently bought a home and with it, a whole back yard full of plants and trees I’ve never taken care of before. i was told to cut back my hydrangias all the way to about 8″. I do not know what kind they were but I think the flowers were purplish-blue and large. I live in Edmonds Washington(just north of Seattle), and I think I may have killed them. Is there a possibility they will grow back? They were beautiful late last summer when we bought the house. It is now Jan. Any hope?
Comment by Linnea — 1/25/2008 @ 6:01 pm
bought an expensive shooting star. it was rootbound, so transplanted. i think that i may have overwatered, so i replanted again. still has some previos flowers but the blue buds have all turned brown. please help. my husbands fav and think i ruined it thank you i advance
Comment by sue beaty — 2/3/2008 @ 12:06 pm
I purchased two hydrangeas 4 days ago. The bigger one is lime green and the smaller is lilac/purple colored. Late at nite, they droop and start to look dead. But in the day time, the look well alive. However, when the lime green one blooms, its flowers start to look more white/pale lime green. What am i doing wrong? I live in a condo in Canada, and i am not sure of what is affecting it. I water them enough so that the soil is not dry, and they get indirect sunlight. How should i care for them best when i live in a condo, and how long will they last. Can someone please give me some advice?
.Comment by Krystal — 3/20/2008 @ 11:48 am
We live outside of St Louis, I have a beautiful pink hydrangea and I don’t know what type of soil and drainage is needed to keep it healthy. Our yard is small but I do have full shade, part shade and full sun. From reading others notes, I understand it is probably best part sun. My biggest problem is water, our yard slopes toward the house. It stays wet for quit some time when we have even a little of rain. I would like it close to the house, but, it that is where the soil is very wet. After a rain it normally takes a few days for the soil to dry. Please help!
Comment by vicki — 3/26/2008 @ 5:22 am
CAN I GROW MY FLORIST HYDRANGEA MACROPHYLIA OUTDOORS IF SO HOW AND WHERE
Comment by rene williams — 5/7/2008 @ 4:22 pm