How to Grow Iron Pastel Mix
Matthiola incana
Your complete guide to growing Iron Pastel Mix.
📷 Wikipedia: FlowerWhen to Plant Iron Pastel Mix
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 Pastel Mix
✓ Good companions
Attracts beneficial insects like lacewings and provides ground cover
Attract beneficial insects and provide structural support
Repels moths, fleas, and mosquitoes with aromatic oils
Repel nematodes and aphids while attracting beneficial insects
Act as trap crop for aphids and cucumber beetles
Repel aphids, tomato hornworms, and squash bugs
Provide beneficial habitat and attract pollinators
Attract pollinators and beneficial predatory insects
✗ Keep away from
Produces juglone toxin that inhibits growth of many plants
Releases allelopathic compounds that suppress nearby plant growth
Inhibits growth of most garden plants through allelopathy
