Columbine Double Pleat Seeds - 100 Count Double Pleat Blackberry Columbine- 100 count. Plant pictured is what you will see in the second season of this perennial's life. Columbine is very easy to grow and can be started indoors . Place in damp soil and cover lightly. Seeds may take 2 - 3 weeks to germinate. Clover-like leaves sprout up and you'll end up with about 1 ft by 1 ft clover bunch after the first season (no blooms). The second season, they will be one of your first blooms (zone 7, my irises and Columbine bloomed around May 15th). Profuse blooms for about 3 weeks, and then it goes to seed. LOTS AND LOTS OF SEED.