My plant has some sort of infestation which I can't pinpoint - some leaves have holes in them, others look dried out. Could you please advise what this could be and what I could do about it? Many thanks in advance :-)
This, actually, looks to be downy mildew. Here is an article that will give you more information and ways to treat it:
https://www.gardeningknowhow.com/plant-problems/disease/downy-mildew.htm
I have primarily big leaf hydrangeas that will leaf out but not bloom. Should I feed them and if so what kind of feed. Need advice.
That type blooms on buds formed the previous season so they can inadvertently be pruned off or killed in a late freeze. This article has more:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm
The grass is fine. It’s growing in the vicinity of a privet hedge and a wisteria - any suggestions please?
It would be important to examine the leaves of the plants that died to see if there is a pest they have in common, one that may have traveled from one to the other. If you can't identify anything common on the stems and leaves, such as spots or browning, there may be something destroying the roots. Please take samples of your plants to your local extension service or nursery expert to see if you can get to the bottom of the problem before it causes any further destruction.
https://www.gardeningknowhow.com/plant-problems/disease/armillaria-root-rot-control.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/common-hydrangea-diseases.htm
just planted my hydrangeas in zone 5 and they have turned brown in 2 days. They get partial sun. Because it’s so new and still “early spring” should I cut them back over a leaf bud or just wait until next year? Thanks Erica
Unfortunately, your photos did not come through. The most likely causes for this type of transplant shock is too much sun, or overwatering.
Here is an article to help you care for the plant:
k says half sun half sha the sign shows half sun half shade
You can grow them in container, but they will do better in ground. They will not tolerate much sun, so make sure that they don't get direct sun. it should reside in what is considered "dappled light" such as the light through a tree canopy.
It will be helpful to know, exactly, which you have. Their are many species of hydrangea and their care can differ depending on the type.
In the meantime, this article will give you a general idea of their care:
My Hydrangeas in pots containing garden soil and ericaceous compost, and have always had beautiful blooms, this year, this is what they look like as of today. I gave them a Hydrangea feed a couple of weeks ago which hasn’t helped. We are in South Yorkshire. Never had this happen before? Can anything be done to save them? I have 9 in total and they have same problem.
If these have never been divided or root pruned, then doing so will likely rejuvenate them.
Here are some articles that will help:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-container-care.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/root-pruning-trees-shrubs.htm
https://www.gardeningknowhow.com/houseplants/hpgen/prune-roots.htm
I have recently purchased a young miss saori hydrangea plant. I’ve planted out in my garden can you tell me how often I should be watering it should I check how wet the soil is a few inch down to no how much water it needs. Thankyou
You should water when the soil is completely dry down to 2 or 3 inches. This will not be on schedule, and will depend on the environment at any given time.
This article will help you to care for Hydrangeas:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-container-care.htm