How to Grow Aubrieta Whitewell Gem
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Aubrieta Whitewell Gem
Aubrieta deltoidea 'Whitewell Gem'
flowerAubrieta Whitewell Gem is a compact, low-growing perennial groundcover prized for its dense clusters of deep purple-violet flowers that bloom profusely in spring. This evergreen alpine plant forms tight mats of small foliage and is ideal for rock gardens, borders, and cascading over walls. It is a cultivar of the popular aubrieta species, selected for its particularly vibrant flower color and reliable performance.
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Example Aubrieta Whitewell Gem timeline · Pittsburgh, PA (Zone 6b)
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Plant Aubrieta Whitewell Gem
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 Aubrieta Whitewell Gem blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Zones 4-8; thrives in cooler regions but tolerates warmer zones with afternoon shade
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Seedling
2-4 weeksTiny seedlings emerge with cotyledons and first true leaves; very delicate
Keep soil lightly moist; provide bright light. Do not cover seeds. Thin seedlings to prevent damping off.
Young Plant
4-12 weeksRosette-forming with small grayish-green foliage, beginning to spread laterally
Allow plants to establish a strong root system. Maintain moderate moisture and excellent drainage. Fertilize lightly.
Vegetative Growth
4-8 months (variable)Dense mat formation with increasing foliage spread; no flowers yet or minimal flowering
Encourage branching and horizontal spread. Water during dry spells. Pinch back tips if needed to promote bushiness.
Flowering
4-8 weeks (spring, often March-May depending on zone)Abundant clusters of deep purple-violet flowers densely covering the foliage mat, peak bloom in spring
Reduce nitrogen to avoid excessive foliage at expense of flowers. Deadhead spent flowers to extend bloom. Maintain consistent watering without waterlogging.
Dormancy & Maintenance
6-8 monthsAfter flowering, foliage persists as an attractive evergreen mat; minimal growth in summer and winter
Allow plant to rest; minimal fertilizer. Cut back lightly after bloom if leggy. Very little water needed in winter. Shear annually to maintain compact form.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove by hand; use row covers on seedlings; spray neem oil or insecticidal soap if severe
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Remove debris and mulch that harbor them; use copper tape barriers; hand-pick at night
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Ensure excellent air circulation; avoid overhead watering; spray sulfur or potassium bicarbonate fungicide if needed
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Prevent with excellent drainage; reduce watering; remove affected plants
Uses
Edible flowers
CulinaryThe small purple flowers of aubrieta are edible and can be used as a delicate, slightly peppery garnish for salads and desserts, adding visual interest and a subtle floral note. [source]
Rock garden and alpine displays
HouseholdAubrieta Whitewell Gem is a classic alpine groundcover for rock gardens, scree gardens, and troughs, creating dense colorful mats that require minimal maintenance once established. [source]
Cascading borders and walls
HouseholdIts low creeping habit makes it ideal for draping over stone walls, raised beds, and steep slopes, providing early spring color with minimal intervention. [source]
Early season nectar source
WildlifeThe abundant spring flowers provide essential early nectar and pollen for bees, butterflies, and other pollinators emerging from winter dormancy. [source]
Pressed flowers
CraftThe colorful petals press beautifully and can be used in pressed flower crafts, bookmarks, and floral art projects to preserve spring's beauty. [source]
Harvest Tips
Aubrieta is an ornamental flower; deadhead spent blooms by hand to promote extended flowering and maintain a tidy appearance. Cut back by one-third after flowering if the plant becomes leggy. Collect seeds from dried seed pods in late spring if desired for propagation.
Fun Facts
- 🌱 Aubrieta is named after Claude Aubriet, an 18th-century French botanical artist and illustrator, honoring his contributions to botanical documentation.
- 🌱 The genus Aubrieta is native to southern Europe and Asia Minor, thriving in rocky mountain slopes where it inspired the modern alpine garden movement.
- 🌱 Aubrieta flowers naturally attract bees so effectively that it is sometimes called 'bee plant,' and a single mat can sustain dozens of foraging insects during peak bloom.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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