Euonymus atropurpureus

Seeds Type

Orthodox, that is to say seeds with the capability to withstand desiccation and freezing temperatures (-20°C) and may therefore be conserved for years, if not decades.

For germination, you must...

1. allow FIVE MONTHS for seed treatment;
2. subject them to a scarification AND a warm stratification, THEN a cold stratification, before sowing (follow the steps below in order).

Scarification : Soak the seeds in water at room temperature for 24 hours.
Stratification (warm and cold) : Place the seeds in a bag (Ziploc Slider type) containing slightly premoistened peat moss. Seeds should be surrounded by the latter. Close the bag and place it at room temperature for about two months, then in cool storage (between 1°C and 5°C) for approximately three months.
Seedlings : Remove the content from the bag and sow the seeds by broadcasting the mix on the growth medium. Bury lightly, less than five millimeters from the soil surface.

⚠ Hard to germinate ⚠

Seeds of this species have an endogenous physiological (probably thermal) and/or morphological (embryo having to mature before being able to germinate) dormancy. Embryo's maturation progresses as the stratification takes place. At the time of sowing, a temperature of 20° C to 30° C would produce a better germination. The latter can occur several months after sowing. It’s important to not throw seeds away if they didn’t germinate after the first attempt. Repeating all the germination process could be necessary.