However, the proper treatment of plants before, during and after planting helps to insure increased survivability, faster establishment and subsequent growth. For optimum results with oleanders, variety selection is a key factor. After identifying the variety best suited for the intended site, attempt to observe plants whenever possible prior to purchasing. Avoid plants labels as double white, single red, etc., and select only those that specify exactly which variety is offered for sale. This ensures that the small plant purchased will develop into the matured specimen intended for the site.
Desirable plants have dark green leaves, the thick stems, and appear dense and bushy.
Avoid plants with broken branches, yellow or necrotic. Examine for oleander gall and insects, especially aphids and mealy bugs. Containerized plants should not be pot bound, i.e. have over grown root systems consisting of dense roots completely encircling and obscuring the growing media. Instead, select plants that continue to retain the root mass intact when removed from the container, but also allow for some visibility of the growing medium. Pre-planting Care Knowledge of growing conditions for plants shipped from other than local nurseries is desirable for acclimating plants to local environments.