🌸 Black Barlow Columbine

What it looks like

Why this variety

Black Barlow is the columbine for gardeners who want drama in spring: fully double, spurless flowers in a purple so dark it reads as near-black, on a plant 2 to 3 feet tall, blooming in late spring against green foliage that makes the dark flowers glow by contrast. It is the darkest columbine in the trade, and it pairs beautifully with pale pinks, whites, and silver foliage — a black flower is a design tool, not just a novelty, because it makes every color near it look brighter.

The trade-off is the same as Nora Barlow’s: doubled, spurless flowers feed fewer pollinators than spurred singles, and seedlings often revert to single or lighter flowers, so deadhead for purity or welcome the mix. Black Barlow also shows its flowers best against light foliage or a pale wall — in deep shade, near-black flowers vanish, so give it part shade with light around it, not a dark corner. In rich, well-drained soil, it returns reliably for years.

If you are new to choosing between cultivars, the Varieties Matter guide explains why the name after the plant matters as much as the plant itself. Black Barlow is a perfect example: it is not just a columbine in the abstract, it is a columbine with a specific job, a specific history, and specific strengths.

Florida honesty: columbine is a North Florida trial, not a statewide perennial, and Black Barlow’s dark flowers absorb heat, so afternoon shade is essential in Florida. In North Florida, plant it in part shade with afternoon protection, in rich soil that stays moist but drains, and enjoy a late-spring show. In Central and South Florida, treat it as a cool-season annual.

How to grow

Plant in spring or fall in rich, well-drained soil in part shade — columbine is a woodland-edge plant that wants leaf-mold soil, consistent moisture, and protection from hot afternoon sun. Work worm castings and compost into the bed at planting, mulch lightly, and give it room to self-sow, because a columbine drift forms from seedlings as much as from the original plants. Do not plant it in hot sun or wet soil and expect it to thrive.

Set plants 12-18 inches apart in soil with a pH around 6.0-7.0. Work worm castings into the bed at planting and mulch to hold moisture. A well-fed columbine plant rewards that care directly: steadier growth, better bloom, and a show that actually shows up.

Water & feeding

Keep soil evenly moist but never waterlogged — columbine wants woodland moisture, not swamp and not drought. Water at the soil line, mulch lightly, and feed lightly: castings and compost at planting plus a spring top-dress. After bloom, reduce watering slightly but do not let the bed dry to dust, or next year’s return will be thinner.

Common problems

• Leaf miners scribbling on foliage — cosmetic tunnels in leaves; remove affected leaves, do not spray, and the plant will outgrow it.
• Powdery mildew in humid, crowded plantings — space for air, water at the soil line, and remove affected leaves.
• Short life — columbines are short-lived perennials; let them self-sow for replacements and replant without mourning.
• Seedling variability — seedlings of fancy forms often revert; deadhead for purity, or welcome the surprise mix.
• Failure in hot climates — heat shortens columbine life; in warm zones, treat it as a cool-season trial in part shade.

Harvest

Cut a few stems for spring bouquets, when flowers are fully open — columbine lasts a few days in water and its spurred flowers suit delicate, woodland-style arrangements. Do not cut heavily: the plant needs its foliage to feed next year’s bloom. Deadhead if you want to prevent seeding, or let it seed for a naturalized drift, and divide congested clumps in spring or fall every few years.

Saving seeds

Black Barlow is a doubled selection, so seed saved from it won’t come true — seedlings often revert to single or lighter flowers, so buy nursery plants instead. The Saving seeds section of the Columbine guide covers seed for the straight species.