Lavandin 'Grosso' (Lavandula × intermedia 'Grosso'): High-Yield Lavender for Oil, Crafts, and Gardens

Overview

Lavandin 'Grosso' (Lavandula × intermedia 'Grosso'), also known as 'Dilly Dilly', is a vigorous, hybrid lavender (cross between L. angustifolia and L. latifolia) prized for its high essential oil yield, long stems, and large, deep violet-blue flower heads. It forms a robust, 2-3 foot mound with silvery-green foliage.

Botanical Details

• Family: Lamiaceae (mint family)
• Genus: Lavandula
• Species: × intermedia
• Cultivar: 'Grosso' (syn. 'Dilly Dilly')

Culture & Uses

Full sun, lean, alkaline, extremely well-drained soil. Drought-tolerant. Harvest flower spikes when buds just open for oil, sachets, wands, culinary use (sparingly—stronger camphor note than English lavender). Prune hard after flowering. Hardy in USDA zones 5-9. Commercial standard for lavender oil production.