Sometimes called a hardy petunia, Ruellia has lovely, purple trumpets that appear in mid summer. Hardy to zone 5, this variety grows to 12 inches and excels in dry, rocky soil. Pkt. 10
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Soak seed in warm water for one hour prior to sowing in moist potting mix ¼ inch deep. Keep at 68-75 F.and bright light. When 2 sets of leaves appear, plant in moist, well drained soil in part shade after temperatures remain above 60 F.