How to Grow Alyssum Wonderland Purple Royal Carpet
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Alyssum Wonderland Purple Royal Carpet
Lobularia maritima 'Wonderland Purple'
flowerA compact, mounding annual alyssum cultivar featuring deep purple flowers that bloom prolifically throughout the growing season. This dwarf variety reaches only 4-6 inches tall and creates a dense carpet of fragrant blooms, making it ideal for edging, borders, and containers. Sweet alyssum is beloved for its honey-like fragrance and ability to attract pollinators.
When should you plant Alyssum Wonderland Purple Royal Carpet in your zone?
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Example Alyssum Wonderland Purple Royal Carpet timeline · Pittsburgh, PA (Zone 6b)
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Plant Alyssum Wonderland Purple Royal Carpet
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 Wonderland Purple Royal Carpet 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 as a cool-season annual; best performance in zones 3-9
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Get my Alyssum Wonderland Purple Royal Carpet timeline →Growth Stages
Seed Germination
7-10 daysTiny seeds on soil surface developing first cotyledons; seedlings appear delicate and thin.
Keep soil moist but not soggy. Provide bright light as soon as seeds sprout. Maintain temperatures 60-75°F for optimal germination.
Seedling Development
10-14 daysFirst true leaves emerge; seedlings develop sturdy stems and deeper root systems.
Thin seedlings to 6-inch spacing. Provide strong light to prevent legginess. Begin fertilizing weekly with diluted liquid fertilizer.
Vegetative Growth
2-3 weeksPlant develops dense, compact mounding habit with multiple branching stems and small narrow leaves.
Pinch back growing tips to encourage bushier growth. Water regularly and maintain consistent moisture. Begin hardening off transplants if started indoors.
Flowering
8-12 weeks or until frostProfuse clusters of tiny deep purple flowers cover the plant in dense carpet-like profusion; strong honey fragrance evident.
Deadhead spent flowers weekly to encourage continuous blooming. Water at soil level. Apply balanced fertilizer every 2-3 weeks or use slow-release granules.
Decline/Frost
Variable; until killing frostFlowering continues until first frost; plant deteriorates after freezing temperatures.
Pull plants after frost. In mild climates (zones 9-11), may reseed naturally or persist into winter.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use row covers when plants are young; spray neem oil or insecticidal soap; remove debris where beetles overwinter.
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Spray with strong water stream to dislodge; apply insecticidal soap or neem oil; encourage natural predators like ladybugs.
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Use sticky traps; spray insecticidal soap or neem oil on undersides of leaves; improve air circulation.
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Improve air circulation; avoid overhead watering; apply sulfur or potassium bicarbonate spray; remove affected leaves.
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Ensure excellent drainage; avoid waterlogging; use well-draining soil; remove affected plants; improve air circulation.
Uses
Cut Flowers & Fragrant Arrangements
CraftThe delicate clusters of tiny deep purple flowers are excellent for small bouquets, mixed arrangements, and as a filler flower. The sweet fragrance adds sensory appeal to any arrangement and can last nearly a week in water. [source]
Pollinator Attraction
WildlifeSweet alyssum is highly attractive to bees, butterflies, and other beneficial insects. The abundant nectar and pollen make it an excellent choice for pollinator gardens and to support native bee populations. [source]
Garden Edging & Border Plantings
HouseholdThe compact Royal Carpet habit (4-6 inches) makes it ideal for edging garden beds, lining walkways, and creating color-coordinated borders. Its low growth doesn't shade other plants and provides long-lasting color. [source]
Container & Hanging Basket Displays
HouseholdThe mounding growth habit and prolific flowering make this cultivar perfect for pots, window boxes, and hanging baskets. A single plant can fill a 12-inch container and spill gracefully over the edges with continuous purple blooms. [source]
Edible Flower Garnish
CulinarySweet alyssum flowers are edible and can be used as a delicate garnish for desserts and salads. They add a subtle, sweet honey flavor and attractive purple color to culinary presentations. [source]
Harvest Tips
Sweet alyssum is grown for ornamental flowers rather than harvest. Deadhead spent flowers regularly to encourage continuous blooming throughout the season. Cut stems for fresh bouquets in early morning when flowers are fully open; they have a lovely fragrance and can last 5-7 days in a vase with fresh water.
Fun Facts
- 🌱 Despite being called 'sweet alyssum,' this plant is not actually in the alyssum genus but is Lobularia maritima, named for its coastal Mediterranean origins. The common name stuck because it resembles true alyssum flowers.
- 🌱 The 'Wonderland' series includes multiple vibrant colors and was bred to be more heat-tolerant and longer-blooming than older alyssum varieties, making them superior for summer gardens.
- 🌱 Alyssum flowers can release their fragrance for several days after being cut, making them one of the most aromatic small flowers available for bringing indoors—a single stem can scent an entire room.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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