B and T World Seeds' reference number:
USDA average, annual, minimum temperature Zone:6
Type of plant - sub-shrub
Flower: GOLDEN to LEMON YELLOW
Foliage: -1.5cm., narr. ell-obl.
Height in meters: 0.15 X prost.
Parts of Hypericum olympicum are considered toxic.
is included in the following B and T World Seeds flowering plant categories:
1: Stock list
9: Alpine and Rock Garden Seed List (Hardy and Tender)
43: Herbaceous Border Plant Seed List
78: South Eastern European Native and Introduced Plants
Hypericum olympicum seeds will usually germinate in 30-90 days, even under good conditions germination may be erratic. Sow seeds about 1mm deep in a Well drained seed sowing mix at about 10°C.