I have a rose colored oleander in my garden that has been there over four years, but will not grow or blossom. What is the reason why it remains the same when it returns in the spring but never once bloomed? My second question is about a double flowering yellow oleander I purchased at Wal Mart that had instructions for another plant attached but the name Oleander was on the bar code of the container and the shrub is identical to all other Oleanders. I have never seen this one in my area of South West Mississippi. Is this shrub a patio plant, or may it be grown in the garden in Zone 8? Finally, how do I treat the problem of the leaves on the end of the branch from wilting and turning black?
I would recommend getting your soil tested, as you could be lacking something in the soil which is preventing healthy growth from occurring. Also, phosphorus rich fertilizer, or bone meal, can help encourage blooming.
As for the issue with blackening of the leaves, it is possible that it has a fungus. Treat the plant with a fungicide. Neem oil is a good choice as it is also an effective pesticide and safe to use.
Can I replant potted Oleander into garden? Any tips for removing plant from pots to garden?
Yes, but you do need to make sure that children and pets will not come in contact with the plant.
Please read the articles below and take the precautions as recommended.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm
Why does my Oleander not flower? They grow flower buds, but these just die and drop off. Clay soil but plant in compost with good drainage. Full sun position, not over or under watered.
Wind, dry conditions and lack of sunlight all can cause bud dropping.
Also proper pruning can help the plant the following spring.
Here are a couple of great article.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
I planted a red Oleander in March this year and several leaves looks like a can of white paint was sprayed over them. Why does my new red Oleander have partial white leaves as if it was sprayed with white paint? These are not white spots but have broad white and green leaves.
Is the white powdery in nature? Your plant could be affected with powdery mildew. Here is more information: https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm
What are the bean looking growths that are at the top of my Oleanders? The plants are about two years old and at the top of the limbs, there are bean like things forming. Is this a natural growth? I live in the East Texas area of Nacogdoches. I put these plants in compost with top soil and ironite feed then covered with a red mulch top.
These are the seeds that are forming on your Oleander.
You can allow them to dry and drop to the ground or remove them.
Use caution as all parts are poisonous.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
We just moved to Texas and there is 3 big oleanders in the backyard. I have 3 dogs and 3 kids, one with a immune deficiency, and I was wondering how dangerous they are and what should I do about them. I have read a lot and I am terrified.
You are right to be concerned with Oleanders.
It is not recommended to have this plant in an area where children and pets are.
All parts of the plant are considered poisonous.
You may want to have the shrubs professionally removed from you yard.
Here is a link with more information.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
Some gardeners cut trees with a chainsaw at a point above where the branches come out saying it was a hard trim. My concern is that they were not properly trimmed (last week) and they won't come back. The trees were pretty tall, as you can see from some that survived the cutting.
I have never seen Oleander pruned to this severity.
Generally no more than 1/3 of the plant should be pruned away.
You will likely need to wait and see. Best of luck.
Here is a link that explains pruning instructions.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/pruning-oleander-shrubs.htm