How to Grow Mountain Snow
Euphorbia marginata
Your complete guide to growing Mountain Snow.
📷 Wikimedia CommonsWhen to Plant Mountain Snow
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | May – June | July – September | — |
| Zone 2 | April – May | June – August | — |
| Zone 3 | April – May | June – August | — |
| Zone 4 | March – April | June – July | — |
| Zone 5 | March – April | May – July | — |
| Zone 6 | March – April | May – July | — |
| Zone 7 | February – March | April – June | — |
| Zone 8 | February – March | April – June | — |
| Zone 9 | January – February | March – May | — |
| Zone 10 | January | February – April | — |
| Zone 11 | January | January – March | — |
| Zone 12 | January | January – March | — |
| Zone 13 | January | January – March | — |
Companion Plants for Mountain Snow
✓ Good companions
Repels ants, aphids, and rodents while attracting pollinators
Repels aphids and Japanese beetles with sulfur compounds
Attracts beneficial pollinators and repels pests with aromatic oils
Deters nematodes and aphids while attracting beneficial insects
Acts as trap crop for aphids and cucumber beetles
Deters cabbage moths, carrot flies, and other pests with strong scent
Attracts beneficial insects and provides ground cover protection
Improves soil health and attracts predatory insects
✗ Keep away from
Produces juglone toxin that inhibits growth of many flowering plants
Releases allelopathic chemicals that suppress nearby plant growth
Competes aggressively for nutrients and may release growth-inhibiting compounds
