California Red Giant Zinnia Blumen Bag Seeds. Annual plant suitable for both high and low flowerbeds and borders, as a pot plant and flower to cut. 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 20 cm. Flower height: about 90 cm Blumen seeds are packaged with a 3 PAC barrier effect protection system (polythene-aluminum-paper) to preserve the high vitality and quality unaltered.