How to Grow Iron Rose
Matthiola incana
Your complete guide to growing Iron Rose.
📷 Wikimedia CommonsWhen to Plant Iron 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 Iron Rose
✓ Good companions
Strong scent deters aphids, thrips, and other soft-bodied pests
Repels aphids, ants, and rodents while attracting beneficial insects
Natural pest deterrent and may enhance rose disease resistance
Provides vertical interest and shares similar water and nutrient requirements
Natural fungicide properties help prevent black spot and powdery mildew on roses
Repels aphids, spider mites, and other rose pests while attracting beneficial pollinators
Deters nematodes, aphids, and whiteflies while adding vibrant color contrast
Aromatic oils repel various insects and complement rose fragrance
✗ Keep away from
Produces juglone toxin that inhibits rose growth and can cause wilting
Susceptible to similar fungal diseases which can spread to roses in humid conditions
Compete for nutrients and water while creating shade that reduces flowering
