How to Grow Blue Ivory Hosta
Blue Ivory Hosta
Hosta 'Blue Ivory'
shrubBlue Ivory is a striking variegated hosta with blue-green foliage edged in creamy white or pale yellow margins. This shade-loving perennial produces lavender flowers on tall spikes and is valued for its dramatic foliage contrast and low-maintenance garden presence.
When should you plant Blue Ivory Hosta in your zone?
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Example Blue Ivory Hosta timeline · Pittsburgh, PA (Zone 6b)
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Plant Blue Ivory Hosta
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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Harvest Blue Ivory Hosta
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Blue Ivory Hosta dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8, with best performance in zones 4-7
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Get my Blue Ivory Hosta timeline →Growth Stages
Establishment (Year 1)
3-4 months after plantingYoung plant with 3-5 leaves, modest spread; variegation begins to show but may not be fully developed
Keep soil evenly moist, mulch lightly, avoid fertilizing heavily to prevent soft growth. Pinch off flower spikes to encourage leaf development.
Vegetative Growth (Year 1-2)
6-12 monthsFoliage expands, mound widens noticeably, blue coloration deepens, white/cream edges become more pronounced
Water consistently, apply balanced fertilizer in spring as new growth emerges. Remove any diseased or damaged leaves promptly.
Maturation (Year 2-3)
OngoingFull mound of 24-30 inches wide, dense foliage with rich blue-green leaves and cream variegation, plant vigor increases
Maintain regular watering and mulch layer. Divide in early spring every 3-4 years if desired to rejuvenate and propagate.
Flowering
4-6 weeks in summer (June-August depending on zone)Tall lavender flower spikes (scapes) emerge above foliage in mid to late summer, reaching 24-30 inches tall
Flowers are fragrant but non-essential. Remove scapes early if foliage display is priority, or leave for texture and pollinator appeal.
Dormancy
October-AprilFoliage yellows and dies back in fall as temperatures cool; plant enters underground rest period
Cut back dead leaves in late fall or early spring. Apply fresh mulch layer (2-3 inches) for winter protection in colder zones. No watering needed.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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and
Hand-pick in early morning or evening, apply copper tape barriers, set beer traps, use diatomaceous earth, or apply organic slug pellets. Encourage natural predators like ground beetles.
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Install 6-8 foot fencing, apply deer repellent sprays (capsaicin or egg-based), plant alongside deer-resistant companions like ferns or hellebores. Hostas are moderately susceptible.
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No cure; prevent by purchasing from certified disease-free sources, sterilize tools between plants, remove and destroy infected plants immediately. Spread by sap contact.
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Remove infected leaves promptly, improve air circulation, avoid overhead watering, dispose of debris. No chemical cure; prevention is key.
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Spray with strong water stream, apply insecticidal soap, use neem oil, or introduce natural predators like ladybugs.
Uses
Shade Garden Focal Point
HouseholdBlue Ivory's striking blue-green foliage with creamy white margins makes it a standout specimen plant in shade gardens. Its architectural form brightens dark corners and provides visual interest from spring through fall without requiring full sun. [source]
Pollinator Attraction
WildlifeThe tall lavender flower spikes attract bees, butterflies, and hummingbirds during mid to late summer, supporting pollinator populations in shade environments where flowering plants are limited. [source]
Floral Arrangements
CraftBoth the distinctive variegated leaves and the fragrant lavender flowers are prized by florists and gardeners for cutting. The foliage maintains its color and texture in vases for 1-2 weeks when properly conditioned. [source]
Traditional Asian Medicine
MedicinalHosta species have been used in traditional Chinese and Japanese medicine, though Blue Ivory specifically is grown ornamentally. Some preparations are claimed to have anti-inflammatory properties, though scientific evidence is limited. [source]
Low-Maintenance Groundcover
HouseholdOnce established, Blue Ivory requires minimal care—no staking, deadheading, or heavy fertilizing needed. It gradually expands to fill space and suppress weeds, making it ideal for busy gardeners seeking reliable perennial coverage. [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 food. Enjoy the blue-green variegated leaves throughout the growing season. Cut flowers for arrangements once spikes fully emerge in summer. Divide clumps in early spring (March-April) every 3-4 years by digging up the crown and separating sections with a sharp spade; each section should have 2-3 eyes (growth buds).
Fun Facts
- 🌱 Blue Ivory is a registered Hosta cultivar, meaning it was intentionally bred for its specific variegation pattern and blue coloration. The blue tones are produced by a waxy coating on the leaves called a 'bloom' that also protects against sun damage.
- 🌱 Hostas are native to Asia (Japan, China, Korea) and were largely unknown in Western gardens until the 19th century, when plant explorers brought them to Europe. Today, there are over 3,000 registered Hosta cultivars—more variation than almost any other perennial plant.
- 🌱 The genus name 'Hosta' honors Nicolaus Thomas Host, an 18th-century Austrian botanist. These plants were historically called 'Funkia' in honor of Heinrich Funk, a German botanist, before the Hosta name was formally adopted.
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