Start indoors 6-8 weeks before last frost. Soak seeds in water a few hours before sowing. Harden off seedlings 2-3 weeks before last frost in cold frame. Plant out after last frost when seedlings are 3-4 inches tall. Adaptable to many soils including clay. Thin crowns every 4-5 years by division. Soil pH 6.1-7.0. Hardiness zones 1-9. Perennial.
Federal germination standard: 60%. Usual seed life 3–4 years. Isolation distance for seed saving: 1/2 mile.
Planting Depth
1/4”Soil Temp. Germ.
70˚FDays to Germ.
7-18Plant Spacing
3 feetRow Spacing
6’Days To Maturity
1 yearPart Shade,
Moist Well Drained