How to Grow Cramer's Rose
Celosia argentea cristata
Your complete guide to growing Cramer's Rose.
📷 Wikipedia: FlowerWhen to Plant Cramer's Rose
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 Cramer's Rose
✓ Good companions
Strong scent repels aphids, thrips, and other rose pests
Deters ants, aphids, and rodents while attracting beneficial insects
Repels aphids and Japanese beetles while improving soil with sulfur compounds
Provides vertical interest and shares similar growing conditions without competing
Natural fungicide properties help prevent black spot and powdery mildew
Repels aphids, moths, and other pests while attracting beneficial pollinators
Deters nematodes, aphids, and whiteflies while adding vibrant color contrast
Attracts beneficial insects like hoverflies that prey on rose pests
✗ Keep away from
Releases juglone toxin that inhibits rose growth and can cause wilting
Heavy feeders that compete for nutrients and may attract pests harmful to roses
Creates excessive shade and competes aggressively for nutrients and water
