Lavandula allardii is a hybrid Lavender plant of Lavandula dentata and Lavandula latifolia also called Allard's Lavender.
This Lavender is graced with long light purple flowers separated with small bracts on lovely long 14-18 inch stems. The foliage color is a soft gray green color and it is blessed with the lovely toothed leaves of its French Lavender parent. Because of this it is often sold incorrectly as "French Lavender."
Blooms appear once in early summer, although not as prolifically as some others, with plants reaching a size in bloom of 30-36 inches. The flowers have a wonderful Lavender perfume fragrance and dry well making them useful for craft projects and arrangements.
This plant is hardy in zone 8-10. Space Lavender allardii at least 36 inches between plants to allow room for the long flower spikes.
Image courtesy of www.lavender-croatia.com
Unfortunately this Lavender is only hardy in the warmer climes and has a very difficult time with even the slightest bit of frost.
So those of you in the warmer regions may rejoice as this Lavender plant is for you. The soft silver foliage and flowers make it stand out from the rest.
Grows well in sub tropic humid regions with shrubs forming dense mounds of silver foliage. Will need a good pruning to keep this tall growing Lavender plant in check and from looking unruly. Works well for use in Lavender hedges.
If you live in a colder zone you may try growing this Lavender in a pot then moving to a sheltered building or green house for the winter.
Craving something similar then try growing one of the chaytorae Lavenders.