Around the Mediterranean Sea, wild oleanders are not uncommon, especially in wet and regularly flooded river meadows. The luxuriantly growing shrubs with their rich flowers are wonderful to look at, which is why they are often cultivated in this country - but mostly in tubs, because oleanders are not reliably hardy. In addition to the beautiful flowers in many colors, the flowering shrub also impresses with its very long flowering period.
Oleander often blooms as early as May
Oleander blooms into autumn
From early summer to autumn, the oleander blooms tirelessly. Its mostly red, white, pink or yellow flowers appear between June and September; and the more lush, the better the oleander is cared for. As a heavy feeder, the plant needs a lot of nutrients, especially during the flowering period, and should therefore be supplied with a good flowering plant fertilizer (€10.47) once or twice a week. Adequate water supply is also important for a rich bloom, because the oleander needs a lot of the precious water.
Do not cut off faded flowers
Although it makes sense for many flowering plants to remove faded shoots and thus stimulate the formation of new flowers, this is not the case with oleanders. Here the buds of the coming new flowers sit on top of the old, used ones - which is why you would be depriving yourself of a new flower if you cut off the faded ones. Instead, leave the old flowers on the bush, they will dry up and fall off by themselves after a while.
tips
If the oleander does not want to bloom, this could be due to the location: oleanders like it warm, sunny and sheltered from the wind. If it is too cold for them, the flower will fail. After clearing out the winter quarters, stimulate flowering by watering the oleander with lukewarm water.