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Value-for-money

Lavandula intermedia Grosso - Lavandin

Lavandula x intermedia Grosso
Lavandin, Dutch Lavender

4,7/5
15 reviews
3 reviews
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1 reviews
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The lavender was beautiful upon arrival, I am looking forward to next summer to admire its flowering.

Chantal , 10/12/2024

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This plant carries a 12 months recovery warranty

More information

Value-for-money
Compact variety, very bushy, dense and lush, with a fragrant summer flowering in blue-mauve, whose evergreen gray-ash foliage will enhance the garden, even in the midst of winter!
Flower size
7 cm
Height at maturity
60 cm
Spread at maturity
60 cm
Exposure
Sun
Hardiness
Hardy down to -20°C
Soil moisture
Dry soil
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Best planting time April to May, October
Recommended planting time March to May, September to October
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Flowering time June to August
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Description

The Lavandula intermedia 'Grosso', also known as lavandin, is an undershrub with a bushy habit, very compact, dense and bushy, with evergreen gray-green aromatic foliage. Crowned in summer with an exuberant flowering spike of blue-purple flowers, very fragrant, its rounded shape and silver-gray foliage will continue to beautify and perfume the garden even in the middle of winter.

Lavenders belong to the Lamiaceae family, they are native to the Mediterranean regions of southern Europe. The variety Lavandula x intermedia 'Grosso' reaches a height of 60/70 cm (24/28in) and a width of 60 cm (24in). Its very compact, dense and vigorous habit forms a well-rounded clump. Its numerous upright branches bear decorative evergreen foliage, composed of linear aromatic leaves, measuring up to 5 cm (2in) long and of a beautiful gray-green color. From June to July, this very floriferous lavender is adorned with a multitude of small tubular blue-purple flowers, with darker calyxes. Very fragrant and melliferous, they are borne on long cylindrical spikes, at the end of woody stems that can reach 20 cm (8in).

This hybrid lavender 'Grosso' requires, like most other lavenders, to be planted in full sun in ordinary (even dry and rocky) soil, very well drained. In a sunny and warm location, its silver foliage will be radiant and its mauve flowers will exhale an intense fragrance. An ornamental and Mediterranean young plant par excellence, this lavandin can be used in borders, as a standalone plant, in edging, rock gardens, pots, seaside gardens and especially for creating borders.

With its graphic appearance, the color of its foliage and its lilac flowers, there are endless possibilities for the gardener. It can be associated with grasses which, with their tousled habit, will contrast with its rounded shape. It will also work wonders at the base of climbing roses, associated with shrubs such as cistus, landscape roses, shrubby salvias; or mixed with German irises, daylilies, and poppies. You can also create beautiful pots to place on the terrace or balcony. It is also possible to combine several varieties of lavenders together, which will create a harmonious and elegant tableau, both in terms of the variety of flower and foliage colors, and the size and volume of the plants.

Properties: Lavender being a very melliferous plant, it contributes to the preservation of bees: the nectar of its flower attracts bees, making it one of the most renowned honeys.

Anecdote: In Roman times, women who wanted to secretly taste wine (a drink that was forbidden to them) chewed a few sprigs of lavender to perfume their breath and deceive the vigilance of their husbands.

Lavandula intermedia Grosso - Lavandin in pictures

Lavandula intermedia Grosso - Lavandin (Flowering) Flowering
Lavandula intermedia Grosso - Lavandin (Foliage) Foliage
Lavandula intermedia Grosso - Lavandin (Plant habit) Plant habit

Flowering

Flower colour blue
Flowering time June to August
Inflorescence Spike
Flower size 7 cm
Fragrance Very fragrant
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Evergreen
Foliage colour green
Aromatic? Fragrant foliage when creased

Plant habit

Height at maturity 60 cm
Spread at maturity 60 cm
Growth rate normal

Botanical data

Genus

Lavandula

Species

x intermedia

Cultivar

Grosso

Family

Lamiaceae

Other common names

Lavandin, Dutch Lavender

Origin

Cultivar or hybrid

Product reference7817752

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Planting and care

Very easy to grow and hardy (-15°C (5°F), or even lower in favorable conditions), the 'Grosso' hybrid lavender needs to be planted in a warm and sunny location, in a light, chalky, rocky, poor and dry soil that is very well-drained. Indeed, lavenders do not tolerate heavy soils and excess water, which can harm their hardiness. If this is the case, it will be necessary to lighten the soil by adding sand and gravel. Lavender pruning should be done every year: just after flowering, using long shears rather than secateurs, remove the faded inflorescences as close to their base as possible. Then, cut back the branches by a third to encourage new growth and thickening of the clump. This refreshing will help maintain a beautiful compact and rounded shape for your lavender, while ensuring a beautiful flowering the following year. Be careful not to shorten the branches by pruning on old wood, as the regrowth of young shoots is unpredictable. Lavenders require very little water, so watering will only be necessary in the first year of planting. When pruning after flowering, do not discard the faded inflorescences, but collect them to make sachets that will delicately perfume wardrobes and also act as excellent moth repellents. For making dried bouquets, harvest the flowers when they are just fully open and let them dry in a dry and ventilated place, upside down.
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Planting period

Best planting time April to May, October
Recommended planting time March to May, September to October

Intended location

Suitable for Rockery
Type of use Border, Container, Slope
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Beginner
Planting density 3 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Stony (poor and well-drained)
Soil moisture Dry soil, well-drained

Care

Pruning instructions To maintain a compact habit, prune after flowering, without cutting back on old wood that does not produce new shoots. Lavenders should be pruned annually from a young age.
Pruning Pruning recommended once a year
Pruning time August to September
Disease resistance Very good
Overwinter Can be left in the ground
4,7/5
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