All lavender have a different bloom habit and patterns.
You can have continual bloom throughout the season if you incorporate different lavender in your garden or on your farm. As a general rule the angustafolias bloom first, and then followed by the lavandins-hybrid lavenders. You may get sporadic second bloom on the lavandins in September, but the true double bloomers are found amongst the angustafolia or true lavender varieties. Take a peak at the table to guide you.
Bloom Guides
L. Angustifolia
Rocky Mountains and High Desert (Zone 4-6)
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L. x.Intermedia
Rocky Mountains and High Desert (Zone 4-6)
| Image | Variety | Notes | May | June | July | Aug | Sep | Oct |
|---|---|---|---|---|---|---|---|---|
 | Edelweiss, L. Intermedia | Single to continual bloomer – Blooms White Flowers, white Grosso, light fragrance, contrasts well with purple lavender |  | |
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 | Fat Spike Grossos, L. Intermedia | Single Bloomer – Dark Purple flowers, shorter stem for lavandin; heavy bloom set, purple flowers | | |||||
 | Gros Bleu, L. Intermedia | Single Bloomer – Deep Navy Blue Blossoms; refreshing scent | | |||||
 | Hidcote Giant, L. Intermedia | Long stems, fat flower heads, long lasting fragrance | | |||||
 | Impress Purple, L. Intermedia | Single Bloomer | | |||||
| Super, L. Intermedia | Single Bloomer – Bright Violet Blue Flowers | | ||||||
 | True Grosso. L. Intermedia | Single Bloomer | | |||||
 | Tuscan Blue, L. Intermedia | Single Bloomer – Light Purple Blossoms. long stems, light fragrance | |
L. Chaytorae
Rocky Mountains and High Desert (Zone 4-6)
| Image | Variety | Notes | May | June | July | Aug | Sep | Oct |
|---|---|---|---|---|---|---|---|---|
| Ana Luisa | Single Bloomer – Beautiful silver foliage, deep dark purple blossoms,long stems | | | |||||
| Silver Frost | Continual bloomer – Silver foliage, lilac purple blossoms | | | | |