Product Description Calendula Officinalis Simple orange flowers, annual, flowers for a long period. This variety is perfect for cutting Height: 50 cm Approximate seeds quantity:@450 Sow: from February – May Reviews 5 Calendula Single Orange Posted by maggie thompson on 10th Dec 2020 Strong seedling plants from excellent germination. Grown first in modules to give good root space, now to transplant several per each large pot in warmer December weather to over winter in air siurce heated greenhouse.