My oleander trees (both in very large pots) are now two years old. They made it through the winter and bloomed out beautifully in the spring. Last year they bloomed nicely also but didn't drop the flowers like they are doing this year. There's plenty of flowers but almost as many on the ground that are on the trees. I didn't have that last year. since I've noticed a difference, I was wondering if it was something I was doing, or lack of, that could be causing them to lose their flowers. Thank you for any suggestions.
Check for signs of any pests or insects, though Oleander are generally not bothered by insects.
The behavior sounds actually quite normal for the plant.
Pruning your shrubs right after they are finished blooming will help them develop new growth and better flowering the following season.
Remember that all parts of the plant are poisonous and the dropped blossoms should be cleaned up to lessen the risk to people and pets.
Here are some links to help refresh you on the care requirements.
http://okeechobee.ifas.ufl.edu/MG34800.pdf
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
I planted this oleander in 2007. Since it has survived a hurricane and a winter with Temps in the 20s. But, it does not grow and puts out little new growth. I suspect the freeze did more damage than anything. Is there any hope for saving it?
The winter temps are the likely issue. Oleander cannot take cold temperatures that fall below 20 degrees F.
You can prune out the shrub to shape up the legginess.
Use caution as every part of the plant is poisonous, and it is crucial this shrub not be grown where children or pets will be exposed.
Here are links to help you with care information.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm
Veragated Oleander leaves are yellow and dying from the tips. Being grown in Sarasota Fl. Do not get watered by irrigation. Leaves with green in the are fine.
Yellowing leaves on your Oleander may indicate overwatering.
Here is a link to refresh you on the care requirements.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
I have two in pots in my garden. They are into their second year but have never flowered properly. They get what look like buds but they never open.
This article will help you determine the issue.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/no-flowers-on-oleander.htm
We live in the low desert of AZ. We had a young sisu (Rosewood tree) removed because of a possible root problem. . . . . . It was suggested we plant a Japanese oleander and shape it like a tree, or maybe there is a tree variety. Is Japanese oleander poisonous, or as poisonous as shrub oleander?
I believe you are referencing a Yellow Oleander.
Yes, this is a poisonous tree also.
I'm writing to you from Montpellier in the south of France where I have nerium oleanders that I want to cut back. At the moment they are about 5ft high and 4ft wide. I'd like them reduced by about a third. Most of the bushes have at least a dozen stems but the leaf growth is only at the top. I live in Montpellier from May to end of September so any pruning I'd like to be able to do before I leave. If this is not the right time of the year and I have to do it in the winter, then I could always ask a neighbor to do the job for me. Please advise.
Hello,
Thank you for sending us your gardening question. The best time to prune is right after bloom time. If you have late blooming varieties, you could trim before you leave in September.
Here are a couple of articles you might find helpful:
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/rejuvenating-overgrown-oleanders.htm
Please let us know if you have any other gardening questions and happy gardening!
Thanks
Gardening Know How
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What are some good, small shade trees to consider for my Arizona backyard?
That will do fine if that is what you choose. Here is an article that will help: https://cals.arizona.edu/maricopa/garden/html/pubs/0103/special.html