About this product

Lavandula × intermedia 'Grosso'

Lavandula × intermedia 'Grosso'

Confirmed format: 9cm potted shrub

Plant Highlights

• Intensely fragrant violet-purple flower spikes

• Evergreen silver-grey aromatic foliage

• Excellent for bees and other pollinating insects

• Thrives in full sun and free-draining soil

• Ideal for borders, hedging and patio containers

Overview

Lavandula × intermedia 'Grosso' is one of the most highly regarded lavenders, valued for its exceptionally fragrant, long flower spikes and vigorous growth. Throughout mid to late summer, tall stems carry richly coloured violet-purple blooms above neat mounds of aromatic silver-grey foliage, creating a striking display that fills the garden with fragrance while attracting bees, butterflies and other pollinating insects.

Its naturally rounded habit makes it an outstanding choice for sunny borders, gravel gardens, low hedging and Mediterranean-style planting. The evergreen foliage provides year-round structure and colour, while the long flower stems are excellent for cutting, drying and arranging indoors.

Why We Love It

• Exceptionally fragrant flowers and foliage.

• Long flower spikes are ideal for cutting and drying.

• A valuable nectar source for bees and pollinating insects.

• Evergreen foliage provides structure throughout the year.

• Drought tolerant once fully established.

Plant Details

Growing Guide

Position

Plant in a sunny, open position where it receives at least six hours of direct sunlight each day. Good air circulation helps maintain healthy growth and flowering.

Watering

Water regularly during the first growing season while establishing. Once established, 'Grosso' is drought tolerant and generally requires watering only during prolonged dry periods. Container-grown plants should be checked more frequently during warm weather.

Soil

Grow in free-draining soil. Lavender performs best in lighter soils and dislikes prolonged winter wet. Improve drainage before planting in heavy clay by incorporating horticultural grit or gravel.

Hardiness and Winter Care

Well suited to Irish gardens provided drainage is excellent. Wet winter conditions are often more damaging than cold temperatures, so avoid planting in areas prone to waterlogging.

Routine Care

Lightly trim after flowering to maintain a compact, bushy shape and prevent the plant becoming woody. Avoid cutting back into old, leafless wood, as regrowth can be poor. Feed sparingly, as rich soils encourage leafy growth at the expense of flowers.

Perfect For

• Cottage and Mediterranean-style gardens.

• Sunny borders and gravel gardens.

• Low fragrant hedging.

• Patio containers.

• Wildlife-friendly planting schemes.

Good to Know

'Grosso' is one of the most widely grown lavenders for producing dried flowers and lavender oil thanks to its long flower stems and exceptionally strong fragrance. Harvest flower spikes just as the blooms begin to open for the best scent and longest-lasting dried arrangements.

Product Information

• Botanical identity: Lavandula × intermedia 'Grosso'

• Supplied in a 9cm nursery pot.