Hydrangea - Fungus?
UcancallmeAl, Zone 7, NC
2 years ago
last modified: 2 years ago
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UcancallmeAl, Zone 7, NC
2 years agoRelated Discussions
Fungus hydrangea??
Comments (3)I doubt you have much of an issue - powdery mildew is more of a cosmetic concern than it is a serious health issue with the plant. I'd wonder how you watered the new plantings. Newly planted trees and shrubs do need regular deep waterings, especially if planted in summer or if you are experiencing high temperatures. But you want to water deeply and thoroughly at the root zone, not sprinkle the foliage. Watering daily may or may not be necessary - you will need to check the soil moisture physically by testing with your finger down in the root zone area. Allow soil to dry slightly (but not completely) between waterings. Powdery mildew is often a cultural problem associated with dry soils and high humidty - lightly watering the foliage but not soaking the soil will create an ideal situation for this fungus to develop. You should know that fungicides are only preventatives, not curatives. IOW, any affected foliage now will not miraculously become clean and free of disease. All the fungicide will do is prevent unaffected foliage from becoming infected. And be sure to apply early in the day or in late afternoon/early evening so it does not react with the sun to create other problems. FWIW, I would not recommend a rock or stone mulch for hydrangeas. They would much prefer an organic mulch - bark, compost, etc. - which would moderate soil heat and conserve soil moisture better. Removing the flowers is your choice - they have only been damaged by overhead watering reacting with sun and/or heat. Since PM is a foliar disease, flowers are typically unaffected....See Moreoverwintering Hydrangea macrophylla winter protection
Comments (104)My first Hydrangea is now in the ground for more than 25 years. At this point, I keep it for sentimental reasons only. It's gotten so THICK with canes that if I wrap it in my usual cage, I have to get everything so tight in there that I think I may actually be suffocating the plant. I've not had good luck overwintering it in recent years. This past winter I didn't even bother with it. If I were you, I'd consider taking a cutting or digging out a portion of your sentimental one and essentially start over. It would indeed be the same plant, so you could keep your sentiment. But I can understand sentiment. I should get rid of my first Hydrangea, but I'm not. For a long time I would cut back the old canes completely to the ground in the Fall. I'd only leave canes that had shot up from low points on the canes or from the crown. They would have grown all summer and would end up giving me great flowering the next year. I'd have very long stemmed flowers, too, that I had cut. The big problem with this technique is that you end up with weaker stems than you would otherwise and next summer they'd be weighted down to the ground with their flowers. I've found that, for my zone, I can usually prune as hard as I want up until about Fourth of July, just to be easy to remember, and not hurt the flowering potential for next year. After that, the buds start setting for next year and you start running into that problem. (But then I've cut some "nikkos" back to the crown in the Fall and on some I'd get great flowering and on some I'd get none. Do I really understand this? NO.) So, here is another method for you to consider to keep it smaller, at least in height. Another thing I've experimented with is to prune all the wimpy growth completely out and just end up with a few stout canes over time. This was interesting, but you end up with an artifical looking Hydrangea and the few stout canes start looking rather strange. But with this technique, more or less, you could develop a plant that wasn't so crowded. I don't know though. I wish I could help you more. I'd like an answer to the question you have, too! Hay...See MorePotential Hydrangea Fungus
Comments (3)Hello that's not a fungus. The picture you posted is classic for heat stress which happens because the plant is not getting enough water to met its needs. First you'll notice browning and curling at the edges of the leaf, then it moves more inward. Younger plants are particularly susceptible to heat stress in the summer as they have yet to form a strong and deep root system to find the water in your post you also provided a clue when you said you watered and you saw them come back to life, another indication of heat stess. Quick browning of the flowers go hand in hand with heat stress and happens frequently with younger plants. They just are not able to get enough water to the flower so it goes brown. That being said overwatering of hydrangeas is not good either thus water to try to keep even moisture , the good news with fall approaching the cooler temps and increased rain will provide some relief and the need to provide supplemental water will significantly diminish and then be altogether eliminated....See MoreWhat is on my hydrangeas? Fungus?
Comments (8)Have you noticed movement? I was thinking that it could a form of scale (cottony maple leaf scale) that is treatable using Bayer with an active ingredient called Imidicloprid or insecticidal soaps or insecticidal oils (neem oil). This pest usually surfaces in late May every year. The cotton acts as a sac where eggs will hatch in the summer. Many of these products will work best when they are applied after the eggs hatch. You may want to apply those things next year too but start spraying ahead of time. Say 2-4 weeks before you first noticed the problem.... they like to return back home....See Moreluis_pr
2 years agolast modified: 2 years agoUcancallmeAl, Zone 7, NC
2 years agoUcancallmeAl, Zone 7, NC
2 years agoluis_pr
2 years agolast modified: 2 years agoUcancallmeAl, Zone 7, NC
2 years agoUcancallmeAl, Zone 7, NC
2 years agoluis_pr
2 years agoUcancallmeAl, Zone 7, NC
2 years agoUcancallmeAl, Zone 7, NC
2 years agoUcancallmeAl, Zone 7, NC
2 years agoluis_pr
2 years agolast modified: 2 years agopennlake
2 years agolast modified: 2 years agoUcancallmeAl, Zone 7, NC
2 years ago
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