Oleanders begin flowering in earnest in spring usually in March and lasting into fall. The plant does flower on new growth but that growth must be of a certain age. Because you have already cut it back, let the new growth that inevitably comes from pruning ages and to expect flowers in the spring.
What month do oleanders bloom?
Oleanders flower from early summer until mid-autumn with large clusters of 2-inch single or double blossoms. Colors range from pure white through pale-yellow, peach, salmon and pink to deep burgundy red. Some varieties (mostly doubles) are fragrant.
How many times a year does the oleander bloom?
From Top to Bottom. Although its typical bloom season is summer through early fall, oleander may bloom year-round in frost-free areas within U.S. Department of Agriculture plant hardiness zones 8 through 10. Flowers are fewer and produced less often in cooler weather.