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Lavandula x intermedia 'Grosso Lavender' is a robust, aromatic shrub renowned for its abundant, deep violet flower spikes and silvery-green foliage. This hybrid lavender variety infuses gardens with fragrance and beauty, making it a standout in borders, herb gardens, and containers.
Description:
Dimensions: Grows to a height of 2-3 feet with a spread of 2-3 feet. It forms a rounded, bushy shape with long, slender stems topped by dense, fragrant flower heads and narrow, evergreen leaves.
Sun Exposure: Prefers full sun, ideally receiving 6-8 hours of direct sunlight daily. Thrives in bright, sunny conditions to maximize bloom production and oil content.
Water Requirements: Prefers well-drained, sandy or gravelly soil with minimal watering once established. Drought-tolerant, it thrives with occasional deep watering, allowing soil to dry between sessions.
Hardiness Zones: Hardy in Zones 5-9.
Bloom Time: Blooms from midsummer to late summer with large, richly colored purple flower spikes that attract pollinators and release a strong, classic lavender scent.
Pruning: Prune lightly in early spring to shape the plant and remove woody growth, then trim back by one-third after flowering to maintain compactness and encourage next year’s blooms.
How to Plant:
Location: Ideal for garden borders, herb gardens, rockeries, or containers in sunny, well-ventilated areas. Prefers lean, well-draining soil for optimal growth and fragrance.
Soil Preparation: Use well-draining soil with a neutral to slightly alkaline pH. Incorporate sand or gravel if needed to improve drainage and prevent root rot.
Planting: Dig a hole slightly larger than the root ball. Place the plant in the hole, ensuring the top of the root ball is level with the soil surface.
Spacing: Space plants 2-3 feet apart to accommodate their mature spread and ensure good air circulation, reducing the risk of fungal issues.
Watering: Water thoroughly after planting and keep soil moderately moist during the first growing season. Reduce watering once established, as it prefers dry conditions.
Fun Fact: Lavandula x intermedia 'Grosso Lavender' is a favorite for commercial lavender oil production due to its high oil yield and potent fragrance. Its long-lasting blooms and sturdy nature make it a garden classic, beloved by both gardeners and bees alike.