I have small yellow worms on my newly planted oleanders. What can I put on the plant to get rid of the worms?
I would use Neem Oil to treat the plants.
You can also pick off the worms and drop into a bucket of soapy water.
Remember that all parts of the Oleander are poisonous so use gloves and protective clothing when working around this plant.
Here is a link that has more information.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
I have a couple oleanders that are in large pots. I live in Southern Ontario, Canada and winters can get relatively cold (well below freezing). I typically bring them in the garage for the winter and wrap them in burlap. Last year one died due to cold. I can only guess. My question is, what is best to do to winterize the plant? Do I still water them a bit if temperature is above freezing? Thanks, Paul
Oleander are winter hardy down to zone 8.
Even wrapping and storage inside will likely not be enough to get them through the cold temperatures in your zone.
You could move indoors instead. Prune the plants back prior to doing so.
Remember the safety issues with Oleander. All parts of the plant are poisonous.
Here is a link with more information.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
When is the best time to transplant my adult oleander shrub?
You can likely successfully transplant the shrub in fall or early spring.
Either time, prune 1/3 of the plant prior to digging up, to lesson the stress.
Dig as much of the root ball as possible and plant the shrub at the same level in the ground.
Make sure you apply plenty of water in the first 2 weeks. Adding 2 to 3 inches of hardwood mulch will help with moisture retention.
Can the roots from this plant/tree be invasive to drains or walls?
Yes, an Oleander does have considerations when planting near a home or structure.
Oleander is drought tolerant and sends it's roots deep along with more surface roots.
Plant a Oleander at least 12 to 18 feet from a sewer or water line.
Also consider the toxicity of a Oleander.
All parts of this plant are toxic, including roots. You will want to contact your local government to check for regulations in planting a Oleander.
Oleander should never be planted where children or pets are living.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
Info on pruning oleanders.
Here is a link that will help you.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm
Need some advice on the correct method of pruning Oleander shrubs. I have 2 large Oleander shrubs in the backyard but having only recently moved into this house, these plants have been ignored by previous tenants and allowed to grow and grow. One currently stands 5 feet high and some 10 feet in width, the second shrub is about the same height but 8 feet wide approx. How would you recommend they be pruned??
Here are some links to help you.
Please familiarize yourself with the toxic nature of Oleander.
All parts of the plant are poisonous and should not be in the landscape where children or pets live.
Wear protective gear when handling all parts of the plant.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
Is it safe to mulch oleander prunings and put them in your compost?
All parts of the Oleander plant are toxic to people, pets and livestock.
It should not be composted in household compost.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm