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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