Description
Kalm’s John’s wort is a compact shrub, with narrow bluish-green leaves and large golden yellow flowers in July-August.
In older specimens the stems bark peels off revealing the nice brownish inside.
An excellent plant for dry, sunny areas; very adaptable, cold hardy and partially evergreen.
Germination: I found it given as a warm germinator; the seeds are very small, sow superficial.
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