California Bluebell in Zone 2a & 2b
Phacelia campanularia
When to plant california bluebell in zone 2b
Zones 2a and 2b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. California Bluebell doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | May 20–May 27 |
| Estimated bloom | Jul 29–Aug 5 (~70 days after direct-sowing) |
Spacing: 2 per square foot (square-foot-gardening spacing). Mature height: 1-2 ft.
California bluebell is a desert native that flowers hard for about a month and then finishes, which makes it a spring crop rather than a summer one.
How california bluebell fits zone 2's season
Zone 2b's frost-free window runs about 104 days, from May 20 to September 1. California Bluebell needs about 70 days from sowing to first harvest.
Good companions
No standout companions recorded yet for California Bluebell.
Where to buy california bluebell seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing california bluebell" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 2b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing California Bluebell in USDA zone 2b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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