Halberd-leaved Rose Mallow, a large, native perennial with light pink, hollyhock-like flowers, was noted by John and William Bartram during their explorations of the South in 1765-66. "Halberd", the name of a 15th century weapon, was given to describe its spear-shaped, triangular leaves on tall, straight stems.
Start seeds indoors 6-8 weeks before last frost date at 70 degrees F. For enhanced germination, scarify and pre-soak seeds overnight. Transplant to 1 gallon pots once they have three sets of leaves, then harden off and transplant outdoors after last frost. Approximately 30 seeds per packet.
Details
Genus | Hibiscus |
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Species | laevis |
USDA Zones | 5 - 8 |
Exposure | Full Sun to Light Shade | Planting Method | Transplant | Planting Depth | 1/4" |
Days to Emerge | 14 - 30 |
Plant Spacing | 2 - 3' apart |
Habit | 5 - 7' H; 4 - 5' W |