Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:
Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:
Hand-picked at our greenhouse
Shipped to your door
Arrives as young plant
Description'Black Barlow' columbine (or Aquilegia vulgaris) boldly blooms in late spring with deep purple or near-black flowers, contrasting with spring's typically soft hues. Its color isn't the only thing that makes it unique. Fully double and spurless flowers give it a ruffled appearance not often seen in columbines. It's eye-catching in the landscape, which is why we're not surprised that hummingbirds and butterflies enjoy it as much as we do. It's low maintenance but may need to be trimmed in summer after the foliage fades in the heat. Keep it well-watered for the most flowers and healthiest foliage.
With charming spring blooms and delicate gray-green foliage, columbine is ideal for cottage, woodland, and cut flower gardens. It grows best with part sun and moist soils, but is adaptable enough to handle full sun in cooler zones. While it's fairly short-lived, columbine tends to self-seed prolifically and form colonies in the landscape, so you can continue to enjoy it for years to come. Long stems and an even longer vase life (up to 2 weeks!) make it an excellent cut flower. Plant them alongside peonies, irises, hostas, or coral bells for late-spring interest.DetailsBotanical name:Aquilegia vulgaris ‘Black Barlow’ Common name: Columbine, Biedermeier columbine Zone: 3 - 8 Sun exposure: Sun (> 6 hours sun) to part-sun (4-6 hours sun) Height x width: 12-18" X 12-18" Flower color: Dark purple to black Foliage color: Green Season of interest: Spring-summer Bloom time: Spring, Summer Features: Rain garden, rabbit resistant, low flammability, heat tolerant, deer resistant, cold tolerant, best for beginners Uses: Accent, alpine, container gardening, border, cottage gardening, ground cover, massing, naturalizing, small spaces, underplanting, waterside, wildflowerHow To GrowSoil: Plant in moist, well-draining soil. It thrives in a wide range of soil types. Light: Sun (> 6 hours sun) to part-sun (4-6 hours sun) Water:Average to Moist Space: 12-16 inches Fertilizing: Seldom needs fertilizing if the soil is not lacking nutrients. Winterizing: No special care is needed. Maintenance: Remove spent flower stems to encourage new blooms.