How to Grow Iron Cherry
Matthiola incana
Your complete guide to growing Iron Cherry.
📷 Wikipedia: FlowerWhen to Plant Iron Cherry
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 Cherry
✓ Good companions
Repels ants, aphids, and rodents while attracting pollinators
Repel aphids and Japanese beetles while improving soil health
Deep roots bring nutrients to surface, acts as dynamic accumulator
Natural fungicide properties and deters various pests
Deters pests with strong fragrance and attracts pollinators
Repel aphids, whiteflies, and nematodes while attracting beneficial insects
Act as trap crops for aphids and cucumber beetles
Improves soil fertility and attracts beneficial predatory insects
✗ Keep away from
Produces juglone toxin that inhibits growth of cherry trees
Competes for nutrients and water, especially problematic for young plants
Can harbor shared diseases like black knot and brown rot
