🌷 Sissinghurst White Lungwort

What it looks like

Why this variety

Sissinghurst White is the lungwort for white shade gardens: pure white spring flowers — no pink, no blue, just white — over the same silver-spotted foliage as Mrs Moon, glowing in shade like a small moon. It was selected at a famous English garden for its clean, luminous white, and it pairs beautifully with blue and pink pulmonarias for a three-color spring drift, or alone in a white border where its spots do the work of a second color. In early spring shade, white is the color that carries farthest, and Sissinghurst White carries it well.

The trade-off is the same as all pulmonaria: after bloom, foliage can tire in heat and humidity, and mildew can spot leaves in crowded plantings. Give it shade, rich moist soil, mulch, and air, cut back tattered foliage after bloom, and water through dry spells. White flowers also show every speck, so plant it where its glow can be admired up close, at a path edge, rather than lost in a distant bed. Do not plant it in sun and expect white — expect scorch.

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. Sissinghurst White is a perfect example: it is not just a lungwort in the abstract, it is a lungwort with a specific job, a specific history, and specific strengths.

Florida honesty, stated plainly: lungwort is a North Florida shade trial, not a statewide promise, and Sissinghurst White is no exception — it wants cool, moist shade that Florida mostly cannot offer. In North Florida, plant it in deep shade with damp soil, and treat a good spring show as a triumph. South of the Panhandle, expect mildew and decline, and plant a native shade plant instead.

How to grow

Plant in spring or fall in rich, moist soil in part to full shade — lungwort is a woodland plant that wants leaf-mold soil, consistent moisture, and protection from hot sun. Work worm castings and compost into the bed at planting, mulch lightly, and space for air. Cut back tattered foliage after bloom for a fresh flush of leaves, and divide congested clumps in fall every few years.

Set plants 12-18 inches apart in soil with a pH around 6.0-7.5. Work worm castings into the bed at planting and mulch to hold moisture. A well-fed lungwort 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 — lungwort wants woodland moisture, not swamp and not drought, and its foliage tires fast in dry soil. Water at the soil line, mulch lightly, and feed lightly: castings and compost at planting plus a spring top-dress. After bloom, keep watering, because the fresh flush of foliage needs moisture to look its best.

Common problems

• Powdery mildew in humid, crowded plantings — space for air, water at the soil line, and remove affected leaves; cut back tattered foliage after bloom.
• Tired summer foliage — heat and drought tire pulmonaria leaves; give it shade, moisture, and a post-bloom haircut for fresh growth.
• Slugs and snails on foliage in wet weather — pick at dusk and keep mulch pulled back slightly from crowns.
• Scorch in sun or drought — browned leaves; give it shade and soil that never dries out.
• Short life in hot climates — heat shortens lungwort life; in warm zones, treat it as a shade trial with soil that never dries out.

Harvest

Cut a few flowering stems for small spring bouquets, when flowers are fully open — pulmonaria lasts a few days in water and its pink-and-blue or white flowers suit woodland-style arrangements. Do not cut heavily: the plant needs its foliage to feed next year’s bloom. Cut back tattered foliage after bloom for a fresh flush, divide congested clumps in fall, and leave foliage standing over winter where it shelters.

Saving seeds

Sissinghurst White is the lungwort for white shade gardens: pure white spring flowers — no pink, no blue, just white — over the same silver-spotted foliage as Mrs Moon, glowing in shade like a small moon. It was selected at a famous English garden for its clean, luminous white, and it pairs beautifully with blue and pink pulmonarias for a three-color spring drift, or alone in a white border where its spots do the work of a second color. As a named lungwort it is kept true by division, not by seed — plant in spring or fall in rich, moist soil in part to full shade: lungwort is a woodland plant that wants leaf-mold soil, consistent moisture, and protection from hot sun. Work worm castings and compost into the bed at planting, mulch lightly, and space for air. Cut back tattered foliage after bloom for a fresh flush of leaves, and divide congested clumps in fall every few years. The full method is in the Propagation section of the Lungwort guide.