Content
Potting soil is not the right thing for the oleander
Oleander loves calcareous soil
At its natural location, the Mediterranean oleander is preferably found in moist places with heavy, clayey and calcareous soil. Such a soil appeals the most to the plant - which, as some of the few pot plants, tolerates waterlogging to a certain extent very well - which is why you should as well as possible imitate the conditions found in nature.
Mix potting soil for oleander
Many potted plants are in good hands in commercial potting soil, but not the oleander. This loose, humus rich substrate is not the pase earth for the flowering shrub. Instead, it is best to mix your oleander soil yourself by mixing the soil of the soil, which contains flowers and loam, in approximately the same proportions and, if possible, adding some sand. Do not forget to add a portion of slow-release fertilizer with the potting soil, so that the oleander gets a good basic supply for the growing season.
Repeat oleander once a year
Especially young oleander plants grow very fast and should therefore be repotted once a year. Each year you exchange the substrate anew and choose a slightly larger pot. Older oleanders, on the other hand, only have to be repotted about every five years. Instead of putting the plant in a new container, you will do a root cutting. Take this measure preferably in the spring, immediately after clearing out of the winter quarters, by.
Tips
If your oleander blooms little or no, then a possible (and very common) cause is a nutrient deficiency. Pay attention to a nutrient-rich substrate (but with only moderate humus content) as well as regular and sufficient fertilization.