How to Grow Snow Princess
Wikimedia Commons
Snow Princess
Ipomoea nil 'Snow Princess'
vineSnow Princess is a stunning ornamental morning glory cultivar featuring pristine white flowers with delicate pink or purple edges and a vibrant contrasting center. This vigorous climbing vine produces heart-shaped foliage and blooms prolifically throughout summer and fall. It's prized by gardeners for its dramatic color contrast and rapid growth habit.
When should you plant Snow Princess in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Snow Princess timeline · Pittsburgh, PA (Zone 6b)
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Plant Snow Princess
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 Snow Princess
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Snow Princess dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-11; grown as an annual in cooler zones
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Seedling
2-3 weeksTiny seedlings emerge with two round cotyledons; develop first true leaves within 1-2 weeks
Keep soil warm (70-75°F) and moist; provide bright light; thin seedlings to prevent crowding
Vegetative Growth
4-6 weeksVigorous vine growth with heart-shaped leaves developing along twining stems; plant rapidly climbs support structures
Provide sturdy trellis or support; water regularly; apply balanced fertilizer every 2 weeks; pinch tips early to encourage branching
Flowering
8-12 weeksLarge trumpet-shaped flowers (2-3 inches wide) bloom abundantly; flowers are white with pink or purple edges and contrasting colorful center
Maintain consistent moisture and full sun; reduce nitrogen fertilizer to promote more flowers over foliage; deadhead spent blooms to extend flowering
Peak Bloom
4-8 weeksFlowers appear continuously throughout summer and early fall; vine becomes covered with blooms in cool mornings before flowers close midday
Continue regular watering and support management; watch for pest issues; enjoy prolific daily blooms
Senescence & Frost
Variable, until first frostFlowering continues until first hard frost kills the plant; vines may turn brown and die back
In frost-prone areas, pull plants after frost; in warm zones, cut back severely for regrowth or allow self-seeding
Common Pests
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Hand-pick in early morning; use row covers on young plants; apply neem oil or insecticidal soap
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Spray with water to dislodge; increase humidity; apply miticide if severe; neem oil effective
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Use yellow sticky traps; spray with insecticidal soap; neem oil; encourage natural predators
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Spray with strong water stream; apply insecticidal soap or neem oil; introduce ladybugs
Uses
Ornamental Garden Display
CraftSnow Princess is primarily grown as a decorative climbing vine for trellises, arbors, pergolas, and fences. The stunning white flowers with contrasting edges provide dramatic visual interest and create a romantic, cottage-garden aesthetic throughout the growing season. [source]
Screen and Privacy
HouseholdThe vigorous growth habit of Snow Princess makes it excellent for covering eyesores, creating privacy screens, or shading sunny garden areas. Dense foliage coverage develops quickly, providing both aesthetic improvement and practical garden functionality. [source]
Pollinator Attraction
WildlifeMorning glory flowers attract bees, butterflies, and hummingbirds throughout the blooming season. The abundant nectar-rich flowers provide essential food sources for pollinators during summer and early fall. [source]
Cut Flower Arrangements
CraftSnow Princess flowers can be cut in early morning when fresh and last several hours in water arrangements. The distinctive bicolored blooms add unique texture and color contrast to floral designs. [source]
Seed Collection
HouseholdGardeners can collect mature seed pods for free seeds to plant the following season. Seeds store well over winter and germinate readily, making Snow Princess economical for successive plantings. [source]
Harvest Tips
Snow Princess is grown for ornamental flowers rather than harvest, though you can collect seed pods after flowers fade for next season. Allow pods to fully dry on the vine, then harvest and store seeds in a cool, dry place over winter.
Fun Facts
- 🌱 Morning glories are named for their flowers that typically open in early morning and close by afternoon, though cultivars like Snow Princess display this behavior with particular reliability.
- 🌱 Snow Princess and other morning glories produce a natural compound called ipomoea that has been studied for potential medicinal properties, though the raw plant should not be consumed.
- 🌱 The flowers exhibit a unique phenomenon called 'anthocyanin migration'—the color-changing edges gradually develop throughout the day, creating subtle shifts in the pink-purple coloration.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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