Plant TalkZinnia Seeniya (Zinnia) Flowering Plant By Sumit - August 2, 2015 0 2508 Share on Facebook Tweet on Twitter Building a flower takes a lot of energy, and all a plant’s energy comes from the sun. Seeniya plants need a full-sun site where sunlight falls 6 to 8 hours a day all through the growing season. Good is essential for successful flower gardening. 0.00 avg. rating (0% score) - 0 votes