How to Grow Lavender Intermedia
Lavender Intermedia
Lavandula × intermedia
shrubLavender intermedia is a hybrid lavender resulting from a cross between English lavender (L. angustifolia) and spike lavender (L. latifolia). It combines the hardiness and fragrance of English lavender with the oil content and heat tolerance of spike lavender, making it an excellent choice for gardeners seeking a robust, highly fragrant ornamental shrub.
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Example Lavender Intermedia timeline · Pittsburgh, PA (Zone 6b)
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Plant Lavender Intermedia
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 Lavender Intermedia
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Zones 5-9; most vigorous in zones 6-8
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Establishment
4-8 weeksYoung transplants developing root systems and establishing base growth; moderate foliage development
Water regularly (2-3 times weekly) until roots are established (4-6 weeks); avoid waterlogging; apply light mulch away from stem base
Vegetative Growth
3-6 monthsPlant develops bushy, mounded habit with narrow, gray-green foliage; woody stems become more pronounced
Reduce watering to drought-tolerant regimen; minimal fertilizing needed; light pruning to shape if desired
Bud Formation & Flowering
6-10 weeks per flush (often repeat blooms in late summer)Flower spikes emerge from stem tips; buds develop from early summer through mid-summer; flowers open in succession on tall inflorescences
Maintain dry conditions; provide support in windy areas; deadhead spent flowers to encourage continued blooming and bushier growth
Peak Flowering & Fragrance
3-6 weeksFull flower spikes in shades of purple, lavender, or pink (depending on cultivar); maximum essential oil production and fragrance intensity
Ideal time for harvesting; avoid heavy watering; let some flowers remain on plant for seed production and wildlife benefit
Post-Bloom & Dormancy Preparation
2-4 monthsFlowers fade and dry on stems; foliage may be less vibrant; plant prepares for dormancy in fall/winter
Hard prune in early spring (late February-March) to promote dense, compact growth next season; remove about 1/3 of woody growth; avoid fall pruning in cold zones
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick adults in spring; encourage beneficial insects; improve air circulation; rarely requires chemical intervention
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Prevent through excellent drainage and avoiding overwatering; remove affected plants; sterilize tools; plant in raised beds if necessary
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Spray with water to dislodge; use horticultural oil in severe cases; ensure adequate humidity and air circulation
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Usually minor damage; encourage natural predators; adequate spacing for air circulation reduces problems
Uses
Culinary & Beverage Uses
CulinaryLavender intermedia flowers and buds are edible with a floral, slightly sweet flavor. Used in herbal teas, baked goods, honey infusions, and as a garnish for cocktails and desserts. [source]
Relaxation & Sleep Support
MedicinalLavender intermedia is rich in essential oils (linalool and linalyl acetate) traditionally used to promote relaxation, improve sleep quality, and reduce anxiety. Commonly used as dried sachets, teas, aromatherapy, or infused products. [source]
Fragrance & Aromatherapy
HouseholdThe potent essential oil is ideal for perfumery, diffusers, sachets, and homemade cleaning products. Intermedia varieties often have higher oil yields than other lavender types, making them preferred for commercial production. [source]
Dried Flower & Craft Projects
CraftExcellent for dried flower arrangements, wreaths, potpourri, and craft applications. The long stems and abundant flowers make intermedia especially suitable for these purposes. [source]
Pollinator Attraction
WildlifeLavender intermedia is highly attractive to bees, butterflies, and other beneficial insects, making it an excellent choice for pollinator gardens and supporting ecosystem health. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest flower spikes when 75% of florets have opened but before they fully fade; cut in early morning after dew dries for maximum essential oil content. Cut stems 6-8 inches from base, leaving healthy green foliage. Can be harvested continuously during blooming season without damaging plant. Ideal for fresh use, drying, or oil extraction.
Fun Facts
- 🌱 Lavender intermedia hybrids are sterile or mostly sterile, meaning they put all their energy into growth and blooming rather than seed production—resulting in longer, more abundant flowering periods.
- 🌱 The name 'intermedia' literally means 'intermediate,' reflecting its genetic status as a hybrid between two different lavender species, combining the best traits of both parents.
- 🌱 Lavender intermedia is the predominant variety used in commercial essential oil production in the Mediterranean region due to its high oil yield and robust growth habit.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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