5
votes
Cuttings growing leaves underground
If you only did it a couple of weeks ago, that was a bit late for a hardwood cutting. You can follow Stormy's instructions regarding this particular cutting to give it a second chance, but you can ...
- 135k
4
votes
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Hydrangea's allelopathic effects on crops?
Hydrangea varieties are not known to have allelopathic properties, and their presence nearby should therefore not cause any problems to the plants you mention, nor any others, although their need for ...
- 135k
4
votes
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Can I take cuttings from hydrangea?
These are not cuttings, they are simply new growth coming off the roots of the plant, and as such, are not suitable for propagation purposes. You can propagate hydrangeas though, and there are three ...
- 135k
3
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Why did my hydrangea's flowers die?
You have basically answered your question:
I haven't watered [...] them yet.
They aren’t dead, they are thirsty! The soil is a bit out of focus in your photos, but it seems very dry. Not all ...
- 16.9k
3
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What is the matter with this Hydrangea?
Drought - you don't say where you are, so I don't know what your weather's been like, but either way, you need to give it a few litres every few days. If you're not convinced, gently dig it up and ...
- 135k
3
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How to prune hydrangeas that are too heavy
They look like a cultivar of Hydrangea arborescens (I would've said 'Annabelle' except some of the flowers are blue). Falling down because the blooms are too heavy is exactly what cultivars of H. ...
- 20.4k
3
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Some vines around root of hydrangeas?
The plant surrounding and climbing into the Hydrangea is Vinca - not sure if its Vinca minor or Vinca major; common name is periwinkle. The difference between the two varieties is one has smaller ...
- 135k
3
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What element is needed to turn Hydrangea flowers blue?
You want to acidify your soil, so sulfur because that is used to make sulfuric acid.
- 9,046
3
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Hydrangea's allelopathic effects on crops?
Hydrangea somehow evolved to be resistant to Juglone that the walnut produces to discourage competition by its own babies and many other plants. Hydrangea learned to be able to grow under walnuts, in ...
- 40.5k
3
votes
Why does my Mathilda hydrangea have an old green flower and a new purple one on the same stem?
Hydrangea is also my favorite! Yours looks really good for an indoor hydrangea. I have many varieties growing outdoors and occasionally have bushes pop up errant color flowers, like yours. This ...
- 99
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Hydrangea flowers not blooming as expected
Hello: I have lots of hydrangea in my gardens and this issue was fascinating to me. The bottom photo is absolutely a lacecap flower, not a mophead, so I did some research and found this on ask....
- 46
3
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Hydrangea flowers not blooming as expected
These are two different varieties of Hydrangea - they're both H. macrophylla, but the second picture shows a lacecap variety, whereas the first shows a 'mophead' type. Lacecaps flower exactly as shown ...
- 135k
3
votes
Can I save this (hydrangea?) plant?
It's not dead, it's just the flowers are fading. This will have been intended as a temporary visitor in the home as a houseplant, because Hydrangea macrophylla is not in flower at this time of year ...
- 135k
3
votes
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What are these dark spots on my hydrangeas?
The dark spots on your hydrangea leaves are likely indicative of a fungal infection, with Cercospora leaf spot being a common culprit. This disease manifests as small, circular spots with tan or grey ...
- 174
2
votes
Should I cut Hydrangea surfacing roots?
Be careful, these might also be new branches growing! Can't tell without an image.
If your hydrangea grows roots above ground, another solution would be to add some compost or potting soil to the ...
- 3,760
2
votes
How and when should hydrangea be trimmed?
Depends what part of the world you're in and whether your hydrangea is a paniculata or macrophylla type. Its quite hard to tell from the dead flower whether its H. macrophylla or not - they're the ...
- 135k
2
votes
Hydrangea leaves going brown
Two possibilities - Hydrangeas of this type prefer to be out of the midday sun, especially if the uv levels where you live are high - morning and evening, or dappled sun is fine. Second, you say you'...
- 135k
2
votes
Newly planted Hydrangeas do not look good
It sounds like insufficient water. Whilst 20 minutes via your sprinkler system every other day might be fine for lawns or plants which have been present in the ground for a couple of years, it's not ...
- 135k
2
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Question about Partial Sun
Hydrangeas do best in partial or dappled shade in soil that does not regularly dry out - a south facing position, unless it is partially shaded by other shrubs, is not the best of growing conditions, ...
- 135k
2
votes
10 months old rooted hortensia, is it chlorosis? What would be a simple hobbyist gardener's treatment?
It sounds like a nutrient shortage in the potting soil you used might be likely - most potting soils are made up with a slow release fertiliser which lasts about 6 weeks to 3 months (depending on the ...
- 135k
2
votes
Whats up with my hydrangea
Brown, dried spots on your hydrangea leaves can occur for several reasons, but the most likely culprits are environmental stress, fungal disease, or minor transplant shock.
Since your soil was amended ...
- 174
2
votes
How to plant hydrangeas behind shrub
If you're growing the boxwood as hedging, then presumably it will be a low, clipped hedge - left to grow naturally, these shrubs will reach between 2 and 4 feet, with a similar spread, so it depends ...
- 135k
2
votes
What has happened to my hydrangea
Hydrangeas need acid soil to be blue. They are pink in alkaline soil. Looks like the plant was grown in acid soil and your soil is alkaline. Your soil is gradually changing the flowers to pink. It ...
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Hydrangea doesn't grow and leaves are getting dry and black
I live in an area with very hard water and soil of alkaline clay, and my hydrangeas grows excellent in shade.
Most of the plants was bought with blue flowers exactly like yours, but next year they get ...
- 1,305
2
votes
Hydrangea doesn't grow and leaves are getting dry and black
Insufficient water is one problem, but I can see tiny white blobs, maybe insects or eggs, on the underside of the top leaf in the second photograph - I can't tell what they are, but check with a ...
- 135k
1
vote
Is my Endless Summer Bloomstruck Hydrangea healthy or am I doing something wrong?
The plant looks healthy enough IMO, though it looks as if it will need a bigger pot next year.
It is normal for hydrangeas to have some "green flowers". The most obvious part of hydrangea &...
- 11.5k
1
vote
Why is my newly planted hydrangea dying?
It sounds like a watering issue and it's possible its time indoors meant it needed hardening off before being planted outdoors, especially if the plant was not fully exposed to the outdoors prior to ...
- 135k
1
vote
Accepted
What is wrong with my Hydrangeas
I believe if you water at the base of the plant you will likely prevent the problems from that point forward. It looks like you have both powdery mildew (the whitish gray spots) and anthracnose fungus ...
- 431
1
vote
What element is needed to turn Hydrangea flowers blue?
If you just want blue hydrangeas (Hydrangea macrophylla only) in pots, then a dose of aluminium sulfate will do the trick quite quickly. Either that or sequestered iron will do it, but in the ground, ...
- 135k
1
vote
Accepted
Should I cut off hydrangeas' early blooms?
Unfortunately, Hydrangea macrophylla flowers on the previous year's wood, and they are not repeat flowering. If you cut off the flowerbuds now, you are unlikely to get any further flowerbuds this ...
- 135k
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