Grosso Lavender
Lavandula x intermedia ‘Grosso’
Other Names: Grosso French Lavender
Plant Details
USDA Plant Hardiness Zones: 5a-8b Find Your Zone
Plant Type: Perennial Herb
Height at Maturity: 24-36″
Width at Maturity: 24-36″
Spacing: 24″ for mass plantings or solid borders; 48″ for space between plants
Spacing: 24″ for mass plantings or solid borders; 48″ for space between plants
Growth Habit / Form: Mounding
Growth Rate: Moderate
Flower Color: Purple
Flower Size: Small flowers packed on large wands
Flowering Period: Late Spring to Late Summer
Flower Type: Spikes, Wands
Fragrant Flowers: Yes!
Foliage Color: Silvery Grey-Green
Fragrant Foliage: Yes!
Berries: No
Berry Color: No
Sun Needs: Full to Mostly Sun
Water Needs: Average, low when established
Soil Type: Clay (Amend heavy clay to ensure good drainage), Loam, Sand, Silt
Soil Moisture / Drainage: Most But Well Drained
Soil pH: 6.7 – 7.5 (Neutral to Slightly Alkaline)
Maintenance / Care: Low
Attracts: Butterflies, Beneficial Pollinators, Visual Attention, Sensory Appeal
Resistances: Deer, Heat, Humidity, Insect, Rabbit
Description
Known and used all over the world in making perfume, Grosso Lavender is highly fragrant. It has both excellent heat and cold tolerance, plus boasts huge flower heads. It has a long-lasting bloom from late spring or early summer to late summer displaying abundant, showy, purple flower spikes that contrast beautifully with the silvery grey-green foliage. Its blooms are more richly colored in the garden and when used for dried flower arrangements, sachets and potpourri. The butterflies and beneficial pollinators will also enjoy the flowers. Excellent as an accent in smaller garden spaces or a solo in containers, or as a low hedge/border or in groupings in larger spaces. Plant it near walkways, decks and patios where its wonderful scent can be enjoyed.
‘Grosso’ Lavender is a hybrid variety that is a cross between English lavender (Lavandula angustifolia) and broadleaf lavender (Lavandula latifolia).
Landscape & Garden Uses
Growing 24 to 36 inches tall and wide, Grosso Lavender is ideal for use as an accent in smaller garden spaces or in groupings, mass plantings, or as a hedge/border in landscape and perennial borders and herb gardens. It is also suitable for growing in containers. A fine selection for herb gardens, perennial gardens, purple theme gardens, cut flower gardens, cottage gardens, and rock and fragrance gardens.
Suggested Spacing: 24 inches apart for mass plantings or solid borders; 4 feet or more apart for space between plants
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Growing Preferences
Lavender is easy to grow in a moist to somewhat dry well-drained soil of average to low fertility and plenty of sun. Constantly soggy soil or standing water is problematic. If desired, the plant can be cut back by one-third its height after flowering to maintain a fuller plant. For example, if your plant is 30 inches tall you can cut it back to 20 inches tall.
Helpful Articles
Click on a link below to find helpful advice from our experts on how to plant, prune, fertilize and water Lavender plants.
How To Plant & Care For Lavender Plants
How To Grow Herbs In A Pot
How To Grow Herbs Indoors
Herb Garden Design Ideas & Tips
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