How to Grow Lavandula Phenomenal
Lavandula Phenomenal
Lavandula × intermedia 'Phenomenal'
shrubLavandula Phenomenal is a hybrid lavender cultivar known for its exceptionally large, vibrant purple flower spikes and vigorous growth habit. This ornamental shrub produces fragrant blooms throughout the growing season and is highly attractive to pollinators. It combines the hardiness of English lavender with superior flower production and longer blooming periods.
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Example Lavandula Phenomenal timeline · Pittsburgh, PA (Zone 6b)
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Plant Lavandula Phenomenal
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 Lavandula Phenomenal
Around Oct 14≈ 180 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Lavandula Phenomenal dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9, with best performance in zones 6-8
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Seedling/Establishment
4-8 weeksYoung plants develop initial leafy growth with gray-green foliage and establish root systems
Keep soil slightly moist but well-draining. Protect from extreme heat and cold. Thin seedlings to proper spacing early.
Vegetative Growth
8-12 weeksPlant develops dense, bushy foliage with aromatic gray-green needle-like leaves reaching 12-18 inches tall
Establish deep watering schedule to promote strong root development. Pinch back growing tips early to encourage bushiness. Minimal fertilizer needed.
Flowering (Primary)
6-8 weeks (summer through early fall)Large, showy deep purple flower spikes (8-10+ inches long) emerge above foliage, attracting numerous pollinators
Deadhead spent flowers to encourage continuous blooming. Reduce nitrogen fertilizer. Ensure adequate water during peak bloom.
Secondary Flowering
4-6 weeksPhenomenal often produces a second flush of flowers in late summer to fall if properly maintained
Continue deadheading. Light pruning after first flush can stimulate reblooming. Maintain consistent watering.
Dormancy/Winter
3-4 monthsPlant enters semi-dormancy with reduced growth; foliage persists but flowering ceases
Reduce watering significantly. Do not fertilize. Avoid heavy pruning; do major cuts in early spring. Ensure excellent drainage to prevent root rot during wet winters.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity, spray with water, use neem oil or sulfur dusts if severe
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Hand-pick beetles, remove affected flower buds, apply spinosad if infestation is heavy
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Ensure good air circulation, avoid overhead watering, apply sulfur or horticultural oil; typically not severe on Phenomenal
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Ensure excellent drainage, avoid waterlogging, plant in raised beds if needed, remove affected plants
Uses
Culinary Garnish & Flavoring
CulinaryLavender flowers add a delicate floral flavor to desserts, beverages, and savory dishes. Buds and flowers can be crystallized for cake decorations or steeped into herbal teas and lemonades. [source]
Fragrance & Aromatherapy
HouseholdDried flowers and essential oil are prized for their calming aromatic properties. Use in sachets, potpourri, linen closets, or diffuse the essential oil for stress relief and relaxation. [source]
Herbal Remedy & Skincare
MedicinalLavender is traditionally used for anxiety relief, sleep improvement, and minor wound healing. The essential oil and flower infusions are incorporated into teas, salves, and bath products. [source]
Dried Flower Arrangements & Crafts
CraftPhenomenal's large flower spikes are excellent for dried arrangements, wreaths, and craft projects. The long stems dry beautifully and retain their color well. [source]
Pollinator Support
WildlifeLavender is a premier nectar and pollen source for bees, butterflies, and other beneficial insects, making it essential for pollinator gardens and supporting local ecosystems. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Cut flower spikes in the morning when fully open for fresh arrangements or drying. Leave at least 2-3 inches of stem with foliage on the plant. Harvest before flowers begin to fade for best color retention when drying. Hang bundles upside down in a cool, dry, well-ventilated area for 2-3 weeks to dry completely.
Fun Facts
- 🌱 Lavandula Phenomenal was developed by the Proven Winners brand and is known for producing some of the largest flower spikes in the lavender genus, often reaching 10+ inches in length.
- 🌱 The name 'Phenomenal' refers to its exceptional reblooming ability—it can produce flowers continuously from early summer through fall if deadheaded regularly, giving it an exceptionally long ornamental season.
- 🌱 Lavender's scientific name 'lavare' comes from the Latin word meaning 'to wash,' as Romans and Elizabethans used lavender extensively in bathing rituals and laundry.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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