Photo by Melody

PlantFiles: Allardii Lavender
Lavandula x allardii

Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Lavandula (lav-AN-dew-lah) (Info)
Species: x allardii


36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:
Light Blue

Bloom Time:
Mid Summer
Late Summer/Early Fall

Grown for foliage

Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
This plant is resistant to deer
Flowers are good for drying and preserving
Suitable for growing in containers

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From softwood cuttings
From semi-hardwood cuttings

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By Photodiva
Thumbnail #1 of Lavandula x allardii by Photodiva


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive saya On Jul 14, 2006, saya from Heerlen
Netherlands (Zone 8b) wrote:

L. x allardii came from a cross L. latifolia x L. dentata. First description of it is already in 18th century. It can grow very quick. If planted in the garden it can reach a height of 150 cm. If planted in a container it 'll reach a height about 100 cm. Of course the triangular foliage is aromatic...It will not always flower because it puts most of its energy in growing so tall. The flowers are soft blue, inconspicuous, but are elegant placed in long somewhat pointed clusters. Overhere, in my zone 8b, it is not hardy enough for in the garden helas...only in a container. Sometimes this Lavandula is wrongly offered as L. dentata.

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