How to Grow Hosta 'Allan P. McConnell'

Hosta 'Allan P. McConnell'

shrub

A compact, slow-growing hosta cultivar prized for its small, heart-shaped leaves with distinctive white margins and green centers. This miniature variety reaches only 6-12 inches in height, making it ideal for rock gardens, containers, and woodland borders. It produces delicate lavender flowers on short stalks in mid-summer.

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Example Hosta 'Allan P. McConnell' timeline · Pittsburgh, PA (Zone 6b)

Plant Hosta 'Allan P. McConnell'
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Hosta 'Allan P. McConnell'
Late summer into fall

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Hosta 'Allan P. McConnell' dates for your own zip code.

Growing Conditions

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Sun: Partial to full shade; 2-4 hours of dappled sunlight optimal. Avoid harsh afternoon sun, which can scorch foliage.

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Water: Keep soil consistently moist but not waterlogged. Water deeply 1-2 times weekly during growing season. Reduce in winter dormancy. More frequent watering needed in containers.

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Spacing: 12 inches

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Days to maturity: 365-730 (slow-growing; reaches mature size in 2-3 years)

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Planting depth: Plant so crown is at or slightly above soil level; do not bury

Soil

Type: Well-draining, humus-rich loamy soil

pH: 6.0-7.0

Amendments:

Organic compost Peat moss Leaf mold Perlite for drainage in heavy clay

Growing Zones

Find your zone →

Thrives in zones 3-8; prefers cooler climates with adequate moisture

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

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Growth Stages

Emergence

2-3 weeks

Unfurling of first leaves in spring as temperatures warm; plant slowly breaks dormancy

Begin regular watering as growth starts. Watch for emerging new shoots around the crown.

Vegetative Growth

6-8 weeks

Leaves expand and spread outward; plant develops fuller form with characteristic white-edged foliage becoming more pronounced

Maintain consistent moisture. Apply 1-2 inches of mulch around base. Monitor for slugs and snails. Avoid overhead watering.

Flowering

3-4 weeks (mid-summer)

Short inflorescences emerge with delicate lavender to pale purple flowers clustered on spikes

Flowers are secondary to foliage appeal. Remove spent flower stalks for a cleaner appearance, though this is optional.

Summer Establishment

8-10 weeks

Plant maintains steady foliage production; growth rate slower than in spring; leaves mature to full color and texture

Continue watering during dry spells. Provide shade cloth in zones 8+ to prevent heat stress. Deadhead flowers if desired.

Dormancy

3-4 months (October-March)

Foliage yellows and dies back in fall; plant goes completely dormant underground over winter

Reduce watering. Leave dead foliage or cut back to ground level. No feeding needed. Mulch heavily in zones 3-4 for winter protection.

Companion Planting

Plan your garden →

Plant with:

Coral bells (Heuchera) Bleeding heart (Dicentra) Japanese forest grass (Hakonechloa) Astilbe Fern (various shade varieties) Hellebore Epimedium Brunnera Ajuga

Avoid planting near:

Black walnut trees (juglone toxicity) Aggressive spreaders like mint or bishop's weed Plants requiring full sun and dry conditions

Common Pests

and (Limacidae and Helicidae families)
Hand-pick in evening; apply copper tape around containers; use beer traps; encourage ground beetles; apply diatomaceous earth; neem oil spray
Ensure excellent drainage; avoid waterlogging; remove affected plants; don't overhead water; improve air circulation
No cure; purchase virus-free plants; sterilize tools; remove infected plants to prevent spread
Handpick early morning; use pheromone traps away from garden; apply neem oil; encourage beneficial parasites
Remove infected leaves; avoid overhead watering; ensure good drainage; destroy severely infected plants

Uses

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Garden design and landscaping

Craft

Miniature hostas like 'Allan P. McConnell' are perfect for containers, rock gardens, shade gardens, and as edging plants. Their compact size and attractive variegated foliage add texture and interest to woodland borders and shaded perennial beds. [source]

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Container gardening

Household

Ideal for terracotta pots, ceramic containers, and raised beds on patios. Dwarf hostas thrive in containers and can be moved to optimize light conditions throughout the season. [source]

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Pollinator support

Wildlife

Hosta flowers provide nectar for bees and other pollinators in mid-summer when shade-garden blooms are scarce. The dense foliage also offers shelter for beneficial insects and small wildlife. [source]

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Traditional Asian herbal use

Medicinal

In traditional Chinese and Japanese medicine, some hosta species have been used to address inflammation and fevers, though 'Allan P. McConnell' is primarily ornamental. Not recommended for culinary or medicinal use without expert guidance. [source]

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Ornamental food plant

Culinary

While some hosta varieties have edible shoots ('toritei'), 'Allan P. McConnell' is grown purely ornamentally. Not typically consumed but may be used as an edible garnish in specialty applications. [source]

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

Harvest Tips

Hostas are ornamental foliage plants, not harvested for produce. Enjoy the foliage display throughout the growing season. Cut back dead foliage in fall or early spring before new growth emerges. Flower stalks may be removed anytime for aesthetic purposes.

Fun Facts

🌱 Hosta 'Allan P. McConnell' is named after a prominent hosta enthusiast and was registered with the American Hosta Society, making it a cultivated hybrid selected specifically for its miniature size and distinctive white-margined variegation.
🌱 Hostas are famously slug and snail magnets—some gardeners plant them strategically to draw these pests away from other shade-loving plants, effectively serving as 'trap plants' in the garden.
🌱 Hosta leaves are so shade-tolerant that they can photosynthesize efficiently in light levels as low as 2-3% of full sunlight, making them among the most shade-adapted ornamental foliage plants available.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Crown Cultivar Deadhead Mulch

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