Portulaca Growing Guide
Growing Portulaca is easier than you think. This guide walks you through everything you need — from planting your first seed to harvesting.
At a Glance
Difficulty
Easy
Category
Flower
Sun Exposure
Full Sun
Frost Tolerance
Frost Tender
Cold Hardiness
Survives to 5°C
Plant Family
Portulacaceae
Growing Season
Warm Season
Plant Lifecycle
Annual
Also grows well as
How to Start It
★ Recommended for beginners
Scatter the tiny seed on the surface of warm soil after frost (it needs light to germinate) and barely cover — it grows fast in heat.
Also called moss rose, this is the plant for the hot, dry, hopeless spot where nothing else will grow — a low, spreading succulent with fleshy needle-like leaves and jewel-bright flowers that bask open in full sun. It thrives on heat, drought and poor, gritty soil, and rots if pampered with rich soil or too much water. The flowers close in shade and dull weather, so it needs all the sun it can get. Self-sows happily.
When To Start
First Chance to Plant
—
Last Chance to Plant
—
When should you plant Portulaca?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Portulaca Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
The Journey Ahead
Portulaca's Lifecycle
Seedling
Mature Plant
Seed Production
Step 1
Prepare Your Space
0.5 cm
Seeding Depth
20 cm
Plant Spacing
30 cm
Row Spacing
Vertical Growing
No.
Succession Planting
No.
Good Companions
Bad Companions
Step 2
Planting & Sprouting
Expect sprouts in 7–14 days
Growing Tips
- 1Treat it mean: full blazing sun, sharp drainage, lean soil, and minimal water — exactly the conditions that kill fussier flowers make portulaca flourish.
- 2It's perfect for hot pavement edges, rockeries, green roofs and pots that bake.
- 3Overwatering and rich soil are the only ways to fail.
- 4Remember the flowers need strong sun to open, so don't tuck it into shade.
Seedling Phase
Step 3
Growth & Maturity
15 cm
Mature Height
30 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
When to Pick
Blooms all summer; flowers open in bright sun and close in shade/cloud
How to Harvest
- 1Just about the lowest-maintenance flower there is — no deadheading needed (it's self-cleaning and self-sowing), and watering only in prolonged drought.
- 2Don't feed; don't overwater.
- 3If you want it back next year, let some seed drop.
- 4Pull it out after frost.
- 5The only real care is making sure it's in enough sun, since the flowers stay shut without it.
Step 5
Saving Seeds
How to Save Seeds
The tiny seeds spill from little capsules when ripe — collect a few capsules as they brown, or just let it self-sow, which it does freely.
Seed Production
Ready to grow this?
Get started with Limitless Growth.
Save this guide, see exactly when to plant portulaca where you grow, and start the 5-step course we wrote for first-time growers.
Get started →
