Ipomea Blumen Envelope Seeds or Climbing Bell with Large Flowers in Mixture. Fast growing annual plant with large corollas. Suitable for decorating lattices, pergolas and sunny walls. Sowing Period: March - May Flowering period: June - October Sowing depth: 0.5 cm Transplant: the seedling must be transplanted when it reaches 10 cm in height. Transplant one plant to the other at a distance of 40 cm. Climbing Flower Height: about 300 cm Blumen seeds are packaged with a 3 PAC barrier effect protection system (polythene-aluminum-paper) to preserve the high vitality and quality unaltered.