Lavandula x int. 'Grosso' (Lavender) — Bushy

Overview

Lavandula x int. 'Grosso' is a plant with a bushy habit in the genus Lavandula, part of the Lamiaceae family, with evergreen foliage. Lavandula x int. 'Grosso' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden, patio and container plants, mediterranean climate plants, city and courtyard gardens, gravel garden, wildlife gardens, banks and slopes, flower borders and beds and garden edging.

About

Lavandula x int. 'Grosso' is a multi-stemmed lavender (Lamiaceae) with evergreen foliage and a rounded growth habit. It favours full sun and free-draining soils such as chalk, sand or loam. In UK conditions it is classed H5 (hardy) and tolerates both exposed and sheltered sites. Flowering occurs from June to September.

About the genus

Lavandula is a genus of 47 known species of perennial flowering plants in the sage family, Lamiaceae. It is native to the Old World, primarily found across the drier, warmer regions of the Mediterranean, with an affinity for maritime breezes.

Wikipedia contributors, "Lavandula", CC BY-SA 4.0 — Lavandula

In the garden

Lavandula x int. 'Grosso' is a hybrid lavender in the Lamiaceae family, noted for its multi-stemmed, rounded form and evergreen leaves. It occupies the same garden roles as many Mediterranean-type plants, bringing structure and long-season flower display where conditions suit. Plant in a sunny position on south-, west- or east-facing aspects and use a free-draining medium: chalk, sand or loam are all acceptable and the plant tolerates acid to alkaline pH. Good drainage is essential; keep soils on the drier side rather than waterlogged. The cultivar stands up to both exposed and sheltered locations and is rated H5 for UK hardiness, so it will survive typical winter conditions in most areas where hardy perennials grow. Use Lavandula x int. 'Grosso' for borders, gravel and wildlife gardens, banks or slopes, and in patio containers where a Mediterranean character is desired. It also suits city courtyards and formal edging schemes. Its flowering season runs from June to September.

Growing conditions

Best soil and position for Lavandula

Sunlight: Full sun
Soil type: Chalk, Loam, Sand
Soil pH: Acid, Alkaline, Neutral
Soil moisture: Well-drained
Aspect: South-facing, West-facing, East-facing
Exposure: Exposed, Sheltered
UK hardiness: H5

Plant details

Lavandula x int. 'Grosso' size, habit and characteristics

Habit: Bushy
Foliage: Evergreen
Suggested uses: Cottage and informal garden, Patio and container plants, Mediterranean climate plants, City and courtyard gardens, Gravel garden, Wildlife gardens, Banks and slopes, Flower borders and beds, Garden edging

Care notes

Pruning and caring for Lavandula x int. 'Grosso'

Propagation: Semi-hardwood cuttings
Pest resistance: Rosemary beetle, Cuckoo spit (froghoppers)
Disease resistance: Grey moulds (Botrytis), Honey fungus

Frequently asked questions

Where is the best place to plant Lavandula x int. 'Grosso'?

Lavandula x int. 'Grosso' prefers full sun. It suits exposed and sheltered positions.

What soil does Lavandula x int. 'Grosso' need?

Lavandula x int. 'Grosso' is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays well-drained.

Is Lavandula x int. 'Grosso' hardy in the UK?

Lavandula x int. 'Grosso' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Lavandula x int. 'Grosso'?

Semi-hardwood cuttings.

More in the Lavandula genus

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