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Lavandula x intermedia 'Grosso'

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Photo Courtesy of Walters Gardens, Inc.
 Common Name: Lavender-English

Plump, violet-blue flower spikes fill the air with their sweet fragrance. 'Grosso' is a cross between L. angustifolia and L. latifolia and is a larger plant overall than these species. Its long flower stems make this variety especially good for use in bouquets.

L. intermedia tends to bloom a bit later in the summer than other lavenders with a possible repeat bloom towards fall. These hybrids were first developed in France for use in perfumes and essential oils.

Lavender has been grown for centuries for its intensely fragrant flowers and beautiful appearance. It is a staple item of every sunny garden, and its dried flowers are widely used in potpourris and arrangements.

Origin: Not Native to North America

Characteristics:



Height:
  24-30 Inches
Spread:
  18-24 Inches
Flower Color:
  Purple shades
Foliage Color:
  Green shades
Hardiness Zone:
5,6,7,8,9
Find Your Zone
Sun or Shade?:
  Full sun (> 6 hrs. direct sun)
Wet or dry?:
  Low water needs
Want to see wings?:
  Attracts butterflies
Need critter resistant plants?:
  Deer resistant
  Rabbit resistant
How fast should it grow?:
  Medium
When should it bloom?:
  Midsummer
  Early fall
Looking for seasonal interest?:
  Evergreen (in some or all zones)
How's your soil?:
  Poor Soil
Sweet or Sour Soil?:
  Neutral Soil (pH = 7.0)
  Alkaline Soil (pH > 7.0)
What's your garden style?:
  Container/Patio
  Formal
  Eclectic

Attributes:

Border plants
Container
Cut flower or foliage
Dried flower or seed heads
Drought Tolerant
Edging
Evergreen
Fragrant flowers or foliage
Mass Planting

Homeowner Growing & Maintenance Tips:

Lavender must be grown in full sun to be able to produce flowers, so do not hesitate to plant them in those hot, dry areas where nothing else seems to grow.  They will actually grow better in poor, gravelly soil than in rich humus; don't be tempted to enrich the soil when you plant it.  Sharp drainage, especially in winter, is essential for preventing crown rot.  Other than that, Lavender is known to have few problems with pests and diseases.  Shearing back the evergreen foliage in early spring will rejuvenate plants and stimulate new growth.


Companions:

Common/Botanical Name
Zones  
Achillea 'Moonshine'
Common Name: Yarrow
3,4,5,6,7,8
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Pennisetum alopecuroides 'Little Bunny'
Common Name: Grass-Ornamental
5,6,7,8,9
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Hemerocallis 'Siloam Double Classic'
Common Name: Daylily
3,4,5,6,7,8,9
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Salvia nemorosa 'East Friesland' ('Ostfriesland')
Common Name: Salvia-Perennial
3,4,5,6,7,8
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Echinacea purpurea 'Magnus'
Common Name: Coneflower-Purple
3,4,5,6,7,8
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Coreopsis verticillata 'Moonbeam'
Common Name: Coreopsis-Threadleaf
4,5,6,7,8,9
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Penstemon 'Prairie Dusk'
Common Name: Beardtongue
3,4,5,6,7,8
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Yucca filamentosa
Common Name: Adam's Needle
4,5,6,7,8,9,10
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Asclepias incarnata 'Cinderella'
Common Name: Swamp Milkweed
3,4,5,6,7,8,9
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History:

The name Lavender comes from the Latin word "to wash." Lavender was commonly used to scent soap.

Fun Facts:

Though lavender is often used in potpourri, its flowers are also edible.  They add a sweetly perfumed to spicy taste in both savory and sweet foods and drinks.

While every effort has been made to describe this plant accurately, please keep in mind that the height, bloom time, and color may differ in various climates throughout the country. The description of this plant was written based on our experience growing it in Michigan (USDA hardiness zone 5) and on numerous outside resources.