His blog is Xtremehorticulture of the Desert Blog. Clean the pot out thoroughly, add a small amount of fresh soil, and put your plant back in. It's so easy to care for, you'll find it planted alongside highways and interstates throughout Florida, where it handles heat and car exhaust admirably. Even if you keep your oleander in great condition, it can become diseased. It's is not only poisonous to adults and children, but almost all types of animals can be affected. Eventually, your oleander leaves will be green again once the brown ones fall away.
How to Kill Oleanders
How to Kill Oleanders | Home Guides | SF Gate
Cut these sprouts as soon as you see them. However, it's the double-flower oleanders that tend to be fragrant. While it's true that all parts of the plant are toxic if ingested, you can still enjoy oleander.
Planting and Care
Read the package directions to determine if the formulation should be diluted or applied straight to the shoots. Examine the hole and remove any shoots or small chunks of the root ball. Between normal root spread and subsequent suckering, oleander roots form a huge network that is hard to dig up once established for several years. After cutting away the canopy by hand, the grinder simply removes the remaining supportive trunk. It's tolerant of sea spray, and thus makes a colorful addition to the beachside landscape.