How to Grow Pulmonaria 'Sissinghurst White'
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Pulmonaria 'Sissinghurst White'
Pulmonaria saccharata 'Sissinghurst White'
flowerPulmonaria 'Sissinghurst White' is a compact perennial ground cover prized for its pure white flowers and attractive spotted foliage. It blooms in early spring, adding luminous color to shaded areas before deciduous trees leaf out. The mottled silver-green leaves remain ornamental throughout the growing season.
When should you plant Pulmonaria 'Sissinghurst White' in your zone?
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Example Pulmonaria 'Sissinghurst White' timeline · Pittsburgh, PA (Zone 6b)
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Plant Pulmonaria 'Sissinghurst White'
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Pulmonaria 'Sissinghurst White' blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8, preferring cooler climates and consistent moisture
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Vegetative Growth
Late summer through early springBasal clump expands with increasingly mottled foliage reaching full ornamental potential. Stems strengthen in preparation for flowering.
Remove any damaged or diseased leaves. Divide overcrowded clumps in fall or early spring. Maintain consistent moisture. Apply balanced fertilizer in early spring if soil is poor.
Flowering
4-6 weeks (early to mid-spring, March-April)Upright flower stems emerge from the center of the clump bearing clusters of funnel-shaped white blooms. Flowers open in succession from pink buds.
Provide consistent moisture; do not let soil dry during flowering. Deadhead spent flowers to encourage longer blooming and neater appearance. Stake tall stems if needed in windy locations.
Post-Bloom
Late spring through summer (May-August)Flowers fade to seed; foliage remains the main ornamental feature and will grow more prominent as temperatures warm.
Deadhead completely if seeds are not desired, to preserve plant energy and maintain neat appearance. Continue regular watering. Foliage may develop mildew in heat and humidity; ensure good air circulation.
Dormancy
Fall through winter (September-February)Foliage gradually withers back as temperatures cool in fall; the plant enters winter rest with minimal visible growth.
Do not remove dead foliage until spring to protect the crown from frost. In cold zones, apply 2-3 inches of mulch for added winter protection. Minimal watering needed.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Ensure good air circulation; water at base only, never overhead. Remove affected leaves. In severe cases, apply fungicide spray or sulfur dust in cool evening hours.
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Remove infected leaves promptly; do not compost. Improve drainage and air flow. Apply fungicide if infection spreads. Space plants adequately.
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Hand-pick early morning or evening. Use beer traps, diatomaceous earth, or copper barriers. Encourage natural predators like ground beetles.
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Spray with strong water stream to dislodge. Use insecticidal soap or neem oil if severe. Encourage beneficial insects like ladybugs.
Uses
Shade Border & Ground Cover
LandscapePerfect for woodland edges, shaded perennial borders, and under deciduous trees where it provides early spring color and year-round foliage texture. [source]
Early Pollinator Food Source
WildlifeWhite flowers provide nectar and pollen for early-season bees, hoverflies, and other pollinators when few other plants are blooming. [source]
Cut Flowers
HouseholdShort stems with fresh white blooms work in spring arrangements and small posies, lasting 7-10 days in water. [source]
Traditional Herbal Use
MedicinalPulmonaria species have a long history in herbal medicine, traditionally used for respiratory support, though modern scientific evidence is limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
This is an ornamental perennial, not harvested for food. Cut back spent flower stems after blooming to tidy the plant. Seeds can be collected in late spring if desired for propagation. Divide clumps in early fall or spring every 3-4 years to rejuvenate.
Fun Facts
- 🌱 The genus name 'Pulmonaria' comes from Latin 'pulmo' (lung), as the spotted leaves were thought to resemble diseased lungs, and the plant was historically used to treat lung conditions under the 'Doctrine of Signatures.'
- 🌱 'Sissinghurst White' was named after Sissinghurst Castle Garden in Kent, England, one of the most famous gardens in the world, created by Vita Sackville-West in the 20th century.
- 🌱 Pulmonaria flowers are 'pin-eyed' and 'thrum-eyed'—two different flower forms on separate plants that promote cross-pollination and genetic diversity among plants.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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