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LAVANDULA x intermedia 'Grosso'
Commonly known as Dutch lavender
Taller growing with broad leaves and mid blue flowers
Further Reading....
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EvergreenGrey-green, narrowly oblong leaves 4-6cm (1½-2½in) long, covered in fine, silvery-grey hairs.
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BlueMid blue
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Height75cm (30in)
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Spread1m (39in)
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Dwarf shrubTypically only grows to a maximum of one or two feet in height but there will be some exceptions.Rounded shrub with branching stems
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Hardy - cold winterHardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F)
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Full sun
LAVANDULA x intermedia 'Grosso'
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional FeaturesGood to knowL.angustifolia x L. latifolia. Wildlife plant - insectsPests & DiseasesFroghoppers, grey mouldPlace of originGarden origin.Resistant to honey fungusThese plants have little or few problems with honey fungus.
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Flower ShapeSpikes10-20cm (4-8in) longTubular
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Garden Location/ConditionsCoastal / windsweptSuitable for open site, slightly back from the seaPatio / pot plantsSuitable for small gardens
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HardinessFully hardy
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Leaf marginEntire
(see photos above) -
Leaf shapeOblong
(see photos above) -
Pruning groupPruning group 7Suitable for: Evergreen shrubs that flower on previous year's growth in Spring, or current year's growth in late Summer/Autumn.
Action: Cut back flowered shoots to within 1 inch of previous year's growth.
When: Annually after flowering or in Spring if flowering on current year's growth.
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Scented PlantsScented flowersScented foliage
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Seasonal InterestSummer
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Soil ConditionsMedium to light, fertile, well drained soil
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WildlifeBee friendlyButterfly friendly
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Lavandula - Care Guide
- Lavender Care
- Harvesting for drying - Video Tip ondemand_video
- Pruning French Lavender - Video Tip ondemand_video
- General dead-heading of Lavender - Video Tip ondemand_video
- Propagation by cuttings - Video Tip ondemand_video
Planting to avoid allergic reactions and asthma
75cm (30in)
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1m (39in) |
Useful extras...
Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00
Fertilisers & Feeds - Empathy
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00
Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00
Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
3 options from £3.00
Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries.
It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50
Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50