Columbine McKana Giants Flower Seeds, Perennial, Aquilegia caerulea, Colorful, Attracts Bees and Hummingbirds, Decorative, Beautiful! Height: 24-36″.
For spring planting, mix the seed with moist sand and store it in the refrigerator for 60 days before direct sowing after the last frost. The seed can also be started indoors.
Depth: DO NOT COVER but press into soil! SOIL temperature MUST be kept at 70F for proper germination!!! Cool soil, particularly at night can inhibit or significantly delay germination. Overly warm soils, well above 90F, can inhibit germination and provide ideal conditions for seed rot.
Keep soil moderately moist, though not overly, dripping wet. Water soil when the soil surface just begins to dry.