Hydrangeas are supposed to be forever gorgeous! The most flawless, must-have flowers in the garden! Yet, you may see black spots on your hydrangea’s leaves. Or worse yet, blooms are turning brown!
Stick with us, and we’ll have your garden favorite looking tip-top again. Here’s how to easily fix those common hydrangea problems.
Simple Steps to (Once-Again) Stunning Blooms — How to Solve Common Hydrangea Problems
1. Not a Spot! When it’s unusually rainy (or if you’re overwatering), hydrangeas’ leaves develop unsightly, black spots. This is a pretty harmless leaf fungus with a scary name — Cercospora! Prune away heavily affected areas and spotted leaves to prevent the fungus from spreading.
2. Will to Wilt. Hydrangea blooms drooping or wilting? Most likely, your plant is soaking up too much sun and not getting enough water. Check to see if the soil is moist 1-2” deep. If not, water deeply. For best hydrangea care, repeat weekly. Add a bit of mulch to help conserve water, too. If that’s not the case, check your soil’s nitrogen levels using a soil test. Add necessary amendments.
3. Brown Blooms. If your hydrangea blooms are turning brown too soon and quickly petering out, they likely need more water. Ditto if your flowers wilt during the day and don’t bounce back at night. To confirm, look for brown spots on leaf edges. To fix, deeply water hydrangeas once a week.
4. Holey-Moly Foliage. Fruit worms and slugs munch holes through hydrangea leaves. Lift up a holey leave. If you find what looks like a caterpillar, that’s a fruit worm! Get rid of them with soapy water. If nothing’s there, it’s likely slugs. You can hand pick them at night — or give them a night cap. Bury a plastic cup near the hydrangea, so the rim is level with the soil. Then, fill the cup halfway with beer.
5. Blooms Be Gone. No flowers on your hydrangea? You likely pruned your hydrangea at the wrong time — and cut off all its new blooms. Skip the pruning this year, and check out our tips for pruning hydrangeas so you never prune hydrangeas at the wrong time again.
6. Purple Pout. If your leaves have purple spots, remove the affected leaves and branches. If the entire leaf is purple, your soil may not have enough phosphorous. Perform a soil test and amend as needed.
Abracadabra! Your hydrangea problems will be gone soon. Then, you can focus on all the best parts of growing hydrangeas — like admiring those big, fluffy flowers!
To learn more about hydrangeas, check out our organic growing guide. Find the right hydrangea for you by choosing one that loves sun, blooms all summer or is perfect for beginners.
- only some hydrangea blooms turned brown
- Ask a Question forum: Blooms on Bobo Hydrangea turning brown
- 15 Green Flowers you Probably Didn’t Know Existed
- 15 Most Beautiful Green Flowers
- Hydrangea With Green Flowers – Cause Of Green Hydrangea Blooms
- Causes of Green Hydrangea Blooms
- Browning On Hydrangea Flowers
- Redesign Your Hydrangeas
only some hydrangea blooms turned brown
Thanks for your response.
Since only a portion of your hydrangea is affected and presumably rather localized, I suspect that what is happening is something called “sun scald” or also termed “leaf scorch”. We have had several questions such as yours from gardeners in the Twin Cities area involving a variety of different shrubs with the same issue. This condition is typically seen during periods of dry, windy weather, low rainfall, and high temperatures with bright sunshine. Under such conditions, hydrangea roots are unable to supply sufficient water to the foliage to replace what is lost by transpiration from the leaves. Hydrangea need a steady supply of water to maintain themselves, including their blossoms. If they do not have this available to them, browning of various parts of the plant will occur. In most cases unless your hydrangea is unhealthy to begin with, which is unlikely given its overall appearance, there is no cause for serious concern.
See the following for further information and possible remedial actions:
For immediate purposes, I would suggest that you just remove the browning blooms and leaves and dispose of them accordingly. I feel quite confident that as our days shorten and cool, you will see less and less of this on your hydrangea.
Ask a Question forum: Blooms on Bobo Hydrangea turning brown
Welcome to NGA, vols2595. The blooms normally change colors in this order: greenish for a very short time, then white, then a shade of pink, then you get some green “splotches” and finally they turn brown. When a brand new hydrangea plant does not get enough water for a long enough time and is heat stressed in its first summer, the first thing it does is abort the flowers and-or the flower buds. The fact that the blooms are going from white directly to brown tells me that it is a watering + heat issue… very common with newly planted hydrangeas.
But it is also a case of a plant not yet established. New hydrangeas cannot absorb water thru the roots as fast as they loose water thru the leaves. When this plant was put for sale, they cut the root system to fit into the plastic pot so this makes it even more difficult to replace the lost water. So in Years 1-3, the blooms may brown out early and-or leaves may wilt. In future years, as the root system becomes larger, these symptoms will be reduced, although I doubt they would be eliminated altogether during the hottest part of the summer.
Maintain the plants well mulched year around. Water when the soil feels dry if you insert a finger to a depth of 4″. Use enough water to get down to a depth of 8″. Water early in the day and water always the soil and never the leaves.
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15 Green Flowers you Probably Didn’t Know Existed
Green flowers represent life, nature and rejuvenation.
In some parts of the world, they are also symbolic of good fortune and youth. Despite this, they’re often disregarded when choosing flowers for a beautiful bouquet, when in fact; green flowers can create an extremely stunning floral arrangement and one that is perfect for any occasion.
For this reason alone, we’ve put together a list of our top 15 favourite green flowers:
15 Most Beautiful Green Flowers
1. Green Carnation
When added to a bouquet, this dainty little flower is often overlooked, however its bright hue can transform an average bouquet into a stunning creation. The carnation is already one of the most popular flowers on the planet. It’s only a matter of time before the green shades – with their pale mint hues and attractive emerald greens – follow suit.
2. Green Chrysanthemum
If you’re looking for a flower to give to your Mother on Mother’s Day, the Chrysanthemum (including the Green Chrysanthemum) is a great option and one that will add an instant injection of colour to any bouquet.
3. Green Trick Dianthus
Although this specie is more of a plant, rather than a flower, it’s still a popular option for the more avant-garde bouquet – particularly centre pieces and table arrangements. This is due to its round ‘puff-ball’ shape.
4. Bells of Ireland
This green floral specie, a member of the mint family, is used in both dried and fresh flower arrangements. It’s also said to symbolise luck.
5. Green Gladiolus
Due to its exotic shades, this green flower is often found in table centerpieces and wedding bouquets. It boasts long stems and tapered petals. Its aesthetic appearance is also complemented by a sweet scent, which makes it an ideal option for events.
6. Green Zinnia
One of the most unique green flowers available today, the Green Zinnia is a favorite of many garden connoisseurs. It boasts a globe-like shape brandishing a multitude of delicate petals. Today, it can be found in an assortment of sizes and forms.
7. Green Cymbidium Orchid
Orchids are a hugely popular choice of flower, possibly because they’re available in a wide range of colours and shapes. They’re often found in our homes, offices and even in wedding bouquets. If you’re looking for something a little different, choose the Green Cymbidium Orchid – this beautiful green flower boasts an array of unusual shades, including both lime green and vibrant red.
8. Green Daylily
This specie of green flower is unique in both its colour and shape. Its distinctiveness is down to the work of professional botanists and green-fingered connoisseurs, who have created a striking green variety of Daylily, which boasts elegant petals with curled edges and rich green hues.
9. Green Hellebore
Nicknamed the ‘Christmas Rose’, this vibrant, fresh flower is a popular choice during the festivities, as it perfectly complements deep red Hellebores. One thing to keep in mind when handling these species of flower is that they can be poisonous – it’s therefore best to leave the arranging to your florist.
10. Green Rose
The classic rose symbolises both love and affection and is available in a wide variety of gorgeous hues. Although red roses are the popular option to gift a loved one on Valentine’s Day, green roses are also a great choice, as they represent both hope and optimism. They’re therefore a great option for a bouquet, especially if you’re trying to impress the person you’re gifting.
11. Green Hydrangea
Guaranteed to brighten up your home and garden, these beautiful green blooms boast large heads made up of an array of smaller flowers. They thrive in both sun and partial shade and are a favourite flower of many a green-fingered connoisseur.
12. Green Hypericum Berries
More commonly known as St. John’s Wort, this particular flower specie grows between one and three feet tall. It showcases ample-sized oval leaves, which each brandish individual clusters of flowers. Hypericum berries are often used in bouquets and table arrangements prior to ripening.
13. Lady’s Slipper Orchid
Unlike the majority of orchids available today, this smaller specie boasts just two leaves, both of which branch out from the central stem. It’s these unique leaves that earned them their name, which look a little like a lady’s slipper. In the wild, they’re often found in shady woodlands. In florists, they’re harder to come by as certain species are now endangered.
14. Spider Mum
Renowned for their lengthy, narrow petals, these spring blooms are available in an array of different hues, including green. The name derives from the drooping petals, which look a little like spider legs.
These green flowers come in the shape of stunning upward spires. Their unique twisted form is what makes them so attractive.
As you can see there’s plenty of beautiful green flowers out there that can provide an elegant twist to your floral displays – the toughest question is which ones to choose!
Local And International Delivery
Flowers By Occasion And Holiday
Specialized Gift Ideas
Hydrangea With Green Flowers – Cause Of Green Hydrangea Blooms
Hydrangeas, the glory of summer! These full blooming beauties, once relegated to old-fashioned gardens have enjoyed a well deserved resurgence in popularity. While there are many varieties within the species, the large Macrophylia or mopheads are still the most popular. While their normal summer blooming color is blue, pink or white, we all notice those green hydrangea flowers at some point in the season. Why do hydrangea flowers bloom green? Is there a cause of green hydrangea blooms?
Causes of Green Hydrangea Blooms
There is a cause of green hydrangea blooms. It’s Mother Nature herself with a little help from the French gardeners who hybridized the original hydrangeas from China. You see, those colorful flowers aren’t petals at all. They’re sepals, the part of the flower that protects the flower bud. Why do hydrangeas bloom green? Because that’s the natural color of the sepals. As the sepals age, the pink, blue or white pigments overpower the green so colored hydrangea blossoms often fade to green over time.
Many gardeners believe that color is controlled solely by the availability of aluminum in the soil. Aluminum gives you blue flowers. Bind up the aluminum and you get pink. Right? That’s only part of the story. Those green hydrangea flowers turn color with longer days of light. Light gives those colors the energy to dominate. The color can last for weeks and then you find your hydrangea flowers turning green again. The days are becoming shorter. The blue, pink and white pigments lose energy and fade away. Once again, green hydrangea flowers reign.
Sometimes you’ll find a hydrangea with green flowers all season long. If you’re new to the garden or the plant is new to you and the plant blooms later than its brethren, you might have a variety called ‘Limelight.’ These relatively new plants have much smaller leaves than the big leaf varieties, although their blooms look similar to the mophead hydrangeas. Flowers turning green is natural to this beauty whose blooms begin and end in white but are bred to be green in between those times.
But if your hydrangea with green flowers is any of the other types and the blooms refuse to change, you’re the victim of one of Mother Nature’s occasional pranks and horticulturalists have no explanation for the condition. It may be a combination of unusual weather conditions, but no scientific reason has been found. Take heart. Your hydrangea with green flowers should only suffer the condition for a season or two before the plant returns to normal.
Why do hydrangeas bloom green? What’s the cause of green hydrangea blooms? They’re interesting questions for the curious, but in the end, does it really matter? If you find your hydrangea flowers turning green, sit back, relax and enjoy the show. It’s Mother Nature at her best.
Hydrangeas turn green because of age. Eventually, the flower will turn from green to brown and is a normal process.
(Nola.com | The Times-Picayune archive)
QUESTION: I have some hydrangeas, and I’ve noticed the flowers starting to turn green. I added some fertilizer, but it had no effect. The leaves all look OK. The flowers do not look like they are wilting. They look fine but are green. Would you have any suggestions? — Jessica Sanders
ANSWER: You’d be amazed how many times I have been asked this question. The problem is simply age. Although hydrangea flowers stay attractive on the plant for a remarkably long time, they don’t last forever. Eventually the flowers begin to age and become less attractive. They don’t rapidly turn brown and ugly like the old flowers of some plants, such as roses, but instead, they gracefully age to a soft green that is attractive in its own right.
Eventually, even the green will fade to brown, and the flowers will need to be trimmed off. In fact, if you don’t like the green stage of the flowers, feel free to trim them. Bottom line, this is completely normal.
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Browning On Hydrangea Flowers
Unfortunately, the fading of white flowers always is more noticeable than it is on any other color bloom. If this was a pink hydrangea you wouldn’t see the browning nearly as quickly as we do on white petals. But beyond that, there are two things that cause hydrangea flowers to brown quickly. The first is exposure to hot sun and the second is the frequent splashing of water on the flowers. If a hydrangea is in a place where the sun is hitting the flowers from 11 AM to 3 PM that flower will brown faster than those that are in shade during that time period. Secondly, if a sprinkler system or hose is hitting the flowers frequently, this will also cause the petals to go brown. So in order to keep any hydrangea bloom in great shape for a longer period of time plant it where it will be in shade during the hottest part of the day, and water it deeply every 5 to 7 days depending on temperature, only in the morning so that the foliage and flowers dry quickly during the day. If a hydrangea is watered for a long period of time every 5 to 7 days, and the area around the plants is mulched, the plants will be able to go without more irrigation which will keep the flowers in better shape.
Redesign Your Hydrangeas
My mother-in-law hated blue hydrangeas and called them tacky trailer park plants. She poured hot grease from her kitchen on the roots, trying to kill them, but it never worked. Those blue blooms just kept coming, clashing with her glorious golden euonymus and red plastic poinsettias.
Changing Hydrangea Colors
If only she’d known the trick I’m going to tell you, she could have turned her hydrangeas pink—a color that goes so much better with red plastic poinsettias. She didn’t need to adjust her attitude; she merely needed to adjust her soil.
You see, for most French hydrangeas (Hydrangea macrophylla), the flower color indicates the pH of the soil. In strongly acid soil (pH below 6), flowers turn blue. In alkaline soil (pH above 7), flowers turn pink or even red. In slightly acid or neutral soil (pH 6 to 7), blooms may be purple or a mix of blue and pink on a single shrub. Keep in mind that selections vary in their sensitivity to pH. For example, ‘Ami Pasquier’ stays crimson in all but the most acid soil and ‘Purple Tiers’ remains purple.
What about white hydrangeas? Sorry, they don’t play along. They stay white regardless of the soil pH.
Okay, here’s the trick I promised you. To make soil more acid, sprinkle ½ cup garden sulfur over the soil beneath the hydrangea, and water it in. To make it more alkaline, do the same with ground lime. Endless Summer Color Me Pink and Color Me Blue products (available at garden centers and from naturehills.com) supply pelletized lime and sulfur respectively. Depending on the size of your plant and your soil conditions, you may need to apply it several times. Be patient; results may take months.
Choose Your Hydrangea Color
These six hydrangeas are widely available and are some of our favorites. Your soil may affect the hue.
‘Ami Pasquier’: Crimson flowers in all but very acid soil, where it turns a wine purple color. Lacecap type.
‘Ayesha’: Distinctive cupped petals are eye-catching. Pale pink to light blue. Very glossy, deep green leaves. Mophead type.
‘Endless Summer’: Repeat bloomer flowers on old and new growth. May be blue or pink. Mophead type.
‘Madame Emile Mouillere’: Vigorous and dependable. Widely considered to be the best white. May rebloom. Mophead type.
‘Nikko Blue’: Dependable and cold hardy, it’s a longtime favorite and widely planted. Turns pink in alkaline soil. Mophead type.
‘Purple Tiers’: Beautiful double-flowered lacecap type. Water lily-shaped blooms are deep purple in acid soil and pink in alkaline soil.
Making Cut Hydrangea Flowers Last
French hydrangea blooms are so gorgeous in the garden that it’s only natural to want to cut them to display on your porch or bring inside. But it can make you go nuts when the blooms wilt an hour after they go in water. How can you stop this?
Here’s an idea from Elizabeth Dean of Wilkerson Mill Gardens (hydrangea.com), a fine mail-order source for hydrangeas. Plunge the cut stems in cool water immediately after cutting. Pour about 1 inch of boiling water into a container, and let it cool for a minute or two. Cut the stems to the lengths you want for your arrangement. Hold the bottom 1 inch of the stems in the hot water for about 30 seconds. Then transfer the stems to cool water. Done!