Plant TalkZinnia Planting Coleus, Zinnia and other Flowers seeds indoors 2014 By Sumit - March 23, 2014 0 14721 Share on Facebook Tweet on Twitter I sowed 2 varieties of Coleus, 2 varieties of Heuchera, 3 varieties of Zinnia and Salvia. Sowed 3/9/14 0.00 avg. rating (0% score) - 0 votes