Didiscus (Blue Lace Flower) in Zone 10a & 10b

Trachymene coerulea

When to plant didiscus (blue lace flower) in zone 10b

Zones 10a and 10b share the same average frost dates in our data, so this page covers both.

Method: Direct sow: Direct-sow outside. Didiscus (Blue Lace Flower) doesn't transplant well, or doesn't need the extra time indoors.

Start indoors	Not typically started indoors
Direct sow / transplant outside	Jan 30–Feb 6
Estimated bloom	Apr 30–May 7 (~90 days after direct-sowing)

Spacing: 2 per square foot (square-foot-gardening spacing). Mature height: 2-3 ft.

Didiscus, also called blue lace flower, is a sweet-scented cut flower that pairs stiff, sturdy stems with a delicate, lacy flower head, an unusual combination that makes it a favorite for bouquets.

How didiscus (blue lace flower) fits zone 10's season

Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Didiscus (Blue Lace Flower) needs about 90 days from sowing to first harvest.

Good companions

No standout companions recorded yet for Didiscus (Blue Lace Flower).

Where to buy didiscus seeds

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See it growing

Search YouTube for "growing didiscus (blue lace flower)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)

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Growing Didiscus (Blue Lace Flower) in USDA zone 10b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.

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