Family Lamiaceae.
French garden origin.
- Long, slender stems rise gracefully above aromatic silvery-grey foliage.
- Dense spikes of deep violet-blue flowers release a powerful sweet fragrance in summer.
- Vigorous and robust, ideal for hedging, borders and large patio containers.
The Tall Flowering Lavender in Your Garden
Long, slender stems rise gracefully above silvery-grey foliage. Dense spikes of deep violet-blue flowers sway in the summer breeze, releasing a powerful, sweet fragrance. This robust lavender creates a dramatic, bee-filled display that lasts for many weeks.
‘Grosso’ is a vigorous hybrid lavender. It grows taller than English types, reaching 60–90cm high and wide within a few years. It performs reliably in sunny, well-drained spots across Norfolk and Suffolk. Its strong growth makes it ideal for hedging, large borders, or bold patio containers.
The foliage is narrow, grey-green and highly aromatic when brushed. Flower spikes are notably long and thick, packed with rich violet-blue florets. The intense fragrance is one of the strongest among lavenders, making it a favourite for drying, potpourri and attracting pollinators.
Growing Tips for Your Tall Flowering Lavender, Lavandula x intermedia ‘Grosso’
- Soil and sun: Well-drained, poor to moderately fertile soil. Full sun is essential for strong growth and flowering.
- Planting: Best in spring or early autumn. Space plants 40–50cm apart for hedging.
- Watering: Water regularly until established. Once rooted it tolerates dry conditions well.
- Pruning: Cut back hard in late summer or early spring. Remove spent flower stems and trim to shape. Avoid cutting into old wood.
Lavandula ‘Grosso’ is a French hybrid lavender prized for its vigour and exceptional fragrance. It was originally selected for oil production but has become a garden favourite worldwide. Its tall, showy spikes and robust nature make it one of the most reliable and dramatic flowering lavenders for British gardens.
