Hosta Lady Isobel Barnett

Lady Isobel Barnett Hosta

Hosta ‘Lady Isobel Barnett’ — a large perennial hosta with a strong upright-mounded form, prized for its thick blue-green foliage and bold architectural presence in shade gardens. The broad, heart-shaped leaves are heavily corrugated, slightly cupped, and held upright, creating a substantial clump with excellent substance and slug resistance. Pale lavender flowers rise above the foliage in midsummer on tall scapes and attract hummingbirds.

Type: Perennial
Mature Size: Width: 48–60 in | Height: 28–34 in (up to 42 in in flower)
USDA Zones: 3a–8b
Light: Partial shade to full shade
Soil / Water: Rich, well-drained soil; evenly moist conditions preferred
Wildlife: Hummingbirds

Features & Landscape Uses:



Thick blue-green foliage gives bold texture 🌿



Upright habit creates strong structure in large shade beds



Excellent specimen or background hosta



Heavy leaf substance improves slug resistance



Care:
Grow in fertile, moisture-retentive soil and protect from strong afternoon sun to preserve blue coloration. Mature clumps improve with age and should only be divided when necessary.

Plant type

Perennial

Height

28-42"

Width

48-60"

Hardiness zones

3–8

Sunlight

Full Shade, Partial Shade

Growth rate

Moderate

Bloom time

Mid Summer

Flower color

Lavender

Leaf color

Steel Blue

Attracts

Hummingbirds

Soil

Moist well-drained, Rich

Landscape use

Accent Plant, Border, Container, Mass Planting

Shape

Mounded, Upright

Drought tolerant

No