How to Grow Alyssum Snow Princess
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Alyssum Snow Princess
Lobularia maritima 'Snow Princess'
flowerSnow Princess is a compact, mounding variety of sweet alyssum known for its pure white flowers and low, spreading growth habit. This heat and drought-tolerant annual produces delicate, honey-scented blooms throughout the growing season, making it ideal for borders, containers, and rock gardens.
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Example Alyssum Snow Princess timeline · Pittsburgh, PA (Zone 6b)
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Plant Alyssum 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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First Alyssum Snow Princess blooms
Around May 22≈ 35 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-11; grown as annual in cold climates, tolerates mild winters in zones 9-11
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Seedling
2-3 weeksTiny cotyledons emerge within 7-14 days. Seedlings develop first true leaves and grow slowly initially.
Keep soil consistently moist but not waterlogged. Provide bright light immediately after germination. Thin seedlings to spacing distance if direct sown.
Vegetative Growth
3-4 weeksPlant develops dense, mounding foliage with multiple stems branching from the base. Leaves are small and linear.
Establish consistent watering routine. Pinch tips when young to encourage bushier growth. Apply balanced fertilizer every 3-4 weeks or use slow-release fertilizer at planting.
Early Flowering
1-2 weeksSmall white flower buds appear at stem tips, clustered in dense spikes.
Continue regular watering and fertilizing. Remove any flower heads that appear stressed. Ensure adequate air circulation around plants.
Full Bloom
6-12 weeks or until frost/heat stressPlant is covered with fragrant white flower clusters (racemes). Growth is dense and mounding, typically 6-12 inches tall and wide.
Deadhead spent flowers regularly to encourage continuous blooming. Water at soil level, not from above. In hot climates, afternoon shade may help extend blooming.
Late Season/Decline
Variable; until frost or heat declineIn summer heat or after frost, plant may slow flowering and become leggy. Growth slows significantly.
Cut back by half in midsummer to rejuvenate and promote new flowering. Reduce watering slightly. In mild climates, plant may recover and rebloom. Remove at season's end.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use row covers on seedlings; spray neem oil or insecticidal soap; encourage beneficial predatory insects
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and
Remove by hand; use slug barriers; apply diatomaceous earth around plants; keep area dry
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Spray with strong water stream; apply insecticidal soap or neem oil; encourage ladybugs and lacewings
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Improve air circulation; avoid overhead watering; spray with sulfur or baking soda solution; remove affected leaves
Uses
Edible garnish
CulinarySnow Princess flowers are edible with a mild, slightly peppery taste and delicate honey scent. Use as garnish for salads, desserts, and specialty dishes. [source]
Garden fragrance
HouseholdThe delicate, sweet honey-like scent perfumes garden spaces and nearby seating areas. Flowers release fragrance strongest in cool morning and evening hours. [source]
Floral arrangements and dried flowers
CraftSmall white flower clusters can be dried for dried flower arrangements and crafts. Air-dry by hanging upside down in a dark, ventilated space. [source]
Pollinator attraction
WildlifeSnow Princess attracts bees, butterflies, and other beneficial insects that pollinate vegetable and fruit gardens. The abundant nectar makes it an excellent supporting plant for pollinators. [source]
Harvest Tips
Not traditionally harvested for food or cut flowers, but deadheading encourages more blooms. Pinch or cut stems back by one-third in midsummer heat to rejuvenate. Collect seeds for next year by allowing some flowers to dry and fade naturally; collect seed pods when tan and dry.
Fun Facts
- 🌱 Snow Princess is also called sweet alyssum; the common name derives from the Greek word 'alysson,' believed by ancient Greeks to cure madness.
- 🌱 Alyssum self-seeds readily, so plants from one season may surprise you with volunteer seedlings the following year.
- 🌱 The fragrance of alyssum is strongest in cool, humid conditions and nearly absent in hot, dry weather—a phenomenon called 'heat-induced fragrance loss.'
Gardening Terms
New to gardening? Learn about terms used in this guide:
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