Fully double, spurless, violet-blue blooms are superb cut flowers. Blue Barlow columbine grows to 32 in. tall. Plants are winter hardy to zone 3.
Growing Blue Barlow Columbine Seeds
Plant Columbine Seeds: Sow columbine seeds in cell packs or flats, press into soil, do not cover. Needs light to germinate. Kept at 65 to 70° F., seedlings emerge in 21 to 28 days. Can direct sow columbine seeds into prepared seed beds in groups of 3 to 4 seeds, spaced 10 to 18 in. apart. Thin to the strongest plant.
Grow Columbine: Full sun in mild climates, part to light shade where it is warm. Best performance in moist, well drained soil — will tolerate average water. For cut flowers, harvest blooms as they begin to open. Typical vase life is 5 to 7 days. Pinch or cut off spent flowers to extend bloom season. Flowers attract hummingbirds and butterflies. Plants are deer and rabbit resistant.
U.S. Shipping Rates
Free shipping on U.S. orders over $60.00.
Free priority shipping on U.S. orders over $150.00.
Standard U.S. shipping is $5.99.
Priority U.S. shipping is $9.99.
International Shipping Rates
Shipping to Canada is $13.99.
International shipping to all other countries is $15.99.
We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.