Is now the right time to prune Indian Hawthorns?
The best tie to prune Indian Hawthorns is right after their blooms have faded. If you prune now, you will have fewer blooms in the spring. Here is more info: https://www.gardeningknowhow.com/ornamental/shrubs/indian-hawthorn/indian-hawthorn-pruning.htm
I want to trim Indian Hawthorne to make them all same height, as some are taller. How do I trim correct them?
This article should help you uniformly prune your Indian Hawthorne:
Why are my Indian Hawthorne plants dying? Not only mine but neighbors and some at Gibbs Gardens. One died last year and the rest this spring.
Hawthorne trees are susceptible to a number of diseases. It may be worth you and your neighbors have the trees inspected by an Arborist to correctly identify the issue.
Here is a link to an article.
My Indian Hawthorn plants were cut before they quit blooming. Is there anything I can do to fix the huge mistake? I don't want them to die or not bloom next year.
Rest assured - your indian hawthorn will not die and you did not impact next year's blooms. The best time to prune is immediately after the flowers fade, before new buds begin to form. Since you pruned them before they were done blooming, then new buds had not formed yet.
For more information on pruning indian hawthorns, please visit the following link:
What are common diseases in Indian hawthorn?
Indian Hawthorne leaf spot is a destructive disease. The following link (PDF) will explain it in more detail. The symptoms match those you were referring to in the other thread about red spots.
diaeses in indian howthorne
My Indian hawthorns are on a drip system and being watered for 25 min. 3 times a week starting at 2 am. Temperatures here in El Paso, Texas range from 72 to 97 degrees. My plants are over 20 years old. I don't fertilize them or spray with anything other than water them.
Indian Hawthorns, especially the older varieties, are prone to leaf spot disease, which spreads plant to plant by either rain splashing or irrigation systems. It is a virus. It looks like the virus from your pic. I have these plants also. Mine have the virus from time to time. The best thing you can do is keep up very good hygiene. Remove the leaves from underneath them and renew a thin layer of mulch often. Bag the leaves that have the virus on them and discard them.
Hope they improve!
The leaves have turned brown around the holes and on the undersides are dry, brown "growths" that look like very tiny pine cones. It does not seem to affect the nearby hollies (yet?). What to do? Any help is appreciated.
I believe this to be entoomosporium leaf spot.
There is a treatment, but preventing it is the key.
Here are a few links to help you decide a plan or if replacing the shrubs may be the best solution.