How to Grow Pulmonaria 'Sissinghurst White'

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Pulmonaria 'Sissinghurst White'

Pulmonaria saccharata 'Sissinghurst White'

flower

A variegated herbaceous perennial with distinctive white-spotted silver foliage and pure white flowers that bloom in spring. This woodland shade plant is prized for its ornamental leaves that persist throughout the growing season, providing long-term interest in shaded garden beds.

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Example Pulmonaria 'Sissinghurst White' timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Pulmonaria 'Sissinghurst White'

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Pulmonaria 'Sissinghurst White' blooms

    Mid-to-late summer

    Before the first fall frost (≈ Nov 8)

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Growing Conditions

☀️
Sun: Partial to full shade; 2-4 hours of dappled sunlight ideal. Avoid direct afternoon sun, especially in warm climates.
💧
Water: Keep consistently moist but not waterlogged. Water at soil level to avoid fungal issues on foliage. In established plants, moderate watering; more frequent during dry spells and first growing season.
📏
Spacing: 12-18 inches apart inches
📅
Days to maturity: First flowering year after planting; full plant maturity 2-3 years
🌱
Planting depth: Plant crown at soil level; do not bury. Space transplants 12-18 inches apart.

Soil

Type: Rich, humus-dense woodland soil, well-draining but moisture-retentive loam
pH: 6.0-7.0
Amendments:
Compost or aged leaf mold Peat moss or coco coir Perlite for drainage if soil is heavy clay

Growing Zones

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Thrives in zones 3-8, with best performance in cooler climates with consistent moisture

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

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Growth Stages

1

Establishment (First 6-8 weeks)

6-8 weeks

Young transplants are developing root systems. Foliage appears modest, with emerging basal leaves showing emerging silver variegation.

Keep soil consistently moist. Mulch lightly with compost. Avoid fertilizing immediately; let plant settle.

2

Spring Growth & Flowering (February-April)

6-8 weeks

Foliage expands dramatically with distinctive white-spotted silver leaves. Flower buds emerge from the center, opening into pure white bell-shaped flowers in clusters.

Continue consistent watering. Divide overcrowded plants in early spring if desired. Remove old foliage from previous year before new growth.

3

Post-Flowering Foliage Development (May-June)

6-8 weeks

Flowers fade and drop. Variegated foliage becomes the main ornamental feature, with leaves reaching full size and color intensity. Plant fills out with dense, mounding growth.

Deadhead spent flower stems if desired for neatness. Maintain consistent moisture as temperatures warm. Apply compost mulch.

4

Summer Rest (July-August)

6-10 weeks

In cooler zones, foliage remains vibrant and ornamental. In warmer zones (7-8), leaves may become less pristine if hot and dry; some dormancy may occur.

Maintain moisture, especially in afternoon heat. In warm climates, provide afternoon shade and extra mulch. Avoid overhead watering.

5

Fall & Winter Dormancy (September-January)

4-5 months

Foliage persists but may fade or brown in harsh freezes. Plant dies back to the crown in cold climates.

Leave foliage intact for winter interest unless severely damaged. Do not prune until early spring. Mulch heavily in zones below 5 for winter protection.

Companion Planting

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Plant with:

Avoid planting near:

Aggressive spreaders like Lamium or mint in confined spaces Plants requiring full sun and dry conditions Shallow-rooted competitors for moisture

Common Pests

  • Improve air circulation, reduce overhead watering, apply sulfur-based fungicide if severe. More common in warm, humid conditions.

  • and

    Hand-pick in early morning or evening. Use copper tape barriers, diatomaceous earth, or beer traps. Encourage ground beetles and birds.

  • Remove affected leaves, spray with insecticidal soap, encourage beneficial parasitoid wasps.

  • Remove affected leaves, improve drainage and air circulation, avoid wetting foliage. Apply copper fungicide if widespread.

Uses

🍳

Traditional herbal tea (historical use)

Culinary

Pulmonaria was historically brewed into medicinal teas in medieval and folk medicine traditions, though modern culinary use is minimal. Leaves contain mucilage compounds traditionally believed supportive of respiratory health. [source]

💊

Lung health traditional remedy

Medicinal

The common name 'lungwort' derives from the plant's historical use in European folk medicine for respiratory conditions, based on the appearance of spotted leaves resembling diseased lungs (Doctrine of Signatures). [source]

🦋

Pollinator support and bee forage

Wildlife

Early spring flowers provide crucial nectar and pollen for emerging bumblebees, solitary bees, and other pollinators when food sources are scarce. Flowers appear before most spring plants bloom. [source]

🏠

Woodland garden ornament & shade plant

Household

The striking white-variegated foliage brightens dark shade areas year-round, making it invaluable for brightening woodland gardens, shaded borders, and near darker-leaved hostas. Provides continuous ornamental interest beyond the short flowering period. [source]

🎨

Fresh and dried flower arrangements

Craft

Delicate white flowers can be used in spring floral arrangements, while the long-lived variegated leaves provide interesting foliage texture in both fresh and dried arrangements. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Pulmonaria is a ornamental flowering perennial, not harvested in the traditional sense. Deadhead spent flowers in late spring for neatness and possible reflowering. Cut back old foliage in early spring (late February/early March) before new growth emerges. Divide clumps every 3-4 years in early spring or after flowering to rejuvenate and propagate.

Fun Facts

  • 🌱 The name 'Sissinghurst White' honors the famous Sissinghurst Castle Garden in Kent, England, where this cultivar was selected and bred by renowned horticulturist Vita Sackville-West in the mid-20th century.
  • 🌱 Pulmonaria flowers change color after pollination: the white flowers may develop subtle pink or blue tones after being visited by bees, serving as a visual signal to pollinators that nectar has been depleted.
  • 🌱 The distinctive white-spotted silver leaves give rise to the common name 'soldiers and sailors' in some regions, referring to the white spots (soldiers) on the blue-green background (sailors) found in some red-flowered species of Pulmonaria.

Gardening Terms

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