Up for sale is one pack of 200 McKana Giants Mix Columbine flower seeds. Striking flowers that encompass colors from pinks and purples to reds and yellows. Perfect for zones 3-9 these hardy perennials are a garden favorite that return year after year.
We offer flat rate combined shipping on all orders, no limit on the amount or type of seed packets.
CULTURE
Soil temperature: 70 degrees fahrenheit
Germination lighting: Light
Germination days: 14 days
Weeks indoor: 10 Weeks
Seed Depth: 1/16"
Seed Spacing: 20 inches
Plant spread: 18 inches
Plant height: 24-36"
Plant type: Perennial
Before sowing we recommend you cold treat your seeds for 30 days. Mix you seed packet with 1 tbs of fine sand and 1 tsp of water in a baggie and store in your fridge (not your freezer) for 30 days before sowing. After the cold treatment let your seed mix dry out and then sow on the surface of your potting mix and expose to light. We like to start columbine in pots and then transplant into our garden in early fall.
You can also direct seed these in spring after your last frost. They prefer sunlight to germinate so till enriched garden soil 6" deep and scatter you seeds on the surface. Cover thinly with sand or vermiculite, or in the garden a very light dusting of peat. They do not like late day heat so here in zone 7 we plant them where they get afternoon shade. Those in mild climates should plant in full sun.
All columbine are slow growing perennials and usually start to flower in their second year.