Espèce : Extremely hardy species

Variété : Shrub with darker foliage and abundant. Clusters of yellow flowers (50cm), fragrant.

Conseils de semis :	Soaking of seeds in water at 82°C then soaking during 48 H in cooled water at ambient temperature . Sowing March/April on a mix of sand/compost.
Rusticity :	Very rustic, down to -15°C and less

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