Silver Cup is an improved tree mallow with vivid pink flowers veined dark.
Sow on the surface and cover lightly. Sprouts in 10-21 days at 65-70ºF. Start indoors 6-8 weeks before last frost or direct sow around last frost every 12". Space 12-18" apart. Blooms in 85-95 days on 2-3 foot branching bushes.
