Portulaca (Moss Rose) in Zone 10a & 10b

Portulaca grandiflora

When to plant portulaca (moss rose) in zone 10b

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

Method: Start indoors: Start indoors from seed, then transplant outside. In your zone, Portulaca (Moss Rose) needs a head start on the heat that direct-sowing elsewhere doesn't require.

Window	Spring window
Start indoors	Jan–Apr
Direct sow / transplant outside	Mar–Jun
Estimated bloom	Apr 30–Aug 29 (~60 days after transplanting)

Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 4-8 in.

Zone 10b dates sourced from growinginthegarden.com.

Portulaca (moss rose) is native to hot, dry plains in South America, and it shows: this is a good summer annual for the driest, sunniest, most neglected corner of the garden, not a plant that needs coddling. It forms a succulent, 4- to 8-inch mat studded with rose-like or single cup blooms in bright pink, orange, yellow, red, or white.

How portulaca (moss rose) fits zone 10's season

Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Portulaca (Moss Rose) needs about 60 days from sowing to first harvest.

Good companions

No standout companions recorded yet for Portulaca (Moss Rose).

Where to buy portulaca seeds

See why we recommend these suppliers →

As an Amazon Associate we earn from qualifying purchases. Some links on this page also go to other retailers we may earn a commission from as an affiliate, at no extra cost to you. We only recommend products with a genuine consensus of positive, independent reviews. See the sources cited on each item.