Annual flower
Moss Rose plant profile
Portulaca grandiflora
An annual flower for full sun.
Last updated .
When to plant
Planting timing is not available yet
We do not yet have a planting window from a published source for Moss Rose.
Browse full-sun annual flowersGrowing conditions
- Sun
- Full sun
- Soil pH
- 6 to 8
- Lifecycle
- Annual
Common problems
Watch for these
Also watch for: crown rot in wet soil, transplants poorly, self seeding.
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Portulaca grandiflora (Moss Rose, Rose Moss)
North Carolina Extension Gardener Plant Toolbox (NC State Extension). Supports general reference. Checked 2026-06-18.