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Lavender 'Grosso' (Lavandula x intermedia 'Grosso')

Lavender 'Grosso' (Lavandula x intermedia 'Grosso')

Grow in average, dry to medium, well-drained, alkaline soil in full sun. Well-drained soils are required, particularly in winter. Root rot commonly attacks plants grown in poorly drained soils. Prefers a light, sandy soil with somewhat low fertility. Remove faded flowers to promote continued bloom. Prune to shape in spring after new leaves appear. Prune back to 8” every 3 years in spring to control plant size and to promote robust, new growth.To combat high humidity, consider using rock instead of organic mulch. Not reliably winter hardy throughout USDA Zone 5 where it appreciates a sheltered location and winter protection.


‘Grosso’ is a mounded, shrubby cultivar that grows to 2-3’ tall and features silver-green foliage and very fragrant lavender flowers in summer. Flower spikes are unusually large and plump for this cultivar, rising well above the foliage mound.


Zone: 5 to 8

Height: 2.00 to 2.50 feet

Spread: 2.00 to 2.50 feet

Bloom Time: June to August

Bloom Description: Lavender

Sun: Full sun

Water: Dry to medium

Maintenance: Medium

Attracts: Butterflies

Tolerate: Rabbit, Deer, Drought, Dry Soil, Shallow-Rocky Soil, Air Pollution


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