How to Grow Katz White
Matthiola incana
Your complete guide to growing Katz White.
📷 Wikipedia: FlowerWhen to Plant Katz White
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 Katz White
✓ Good companions
Repels ants, aphids, and rodents while attracting pollinators
Natural pest deterrent against aphids and thrips
Attracts beneficial insects and provides structural support without competition
Repels moths, fleas, and mosquitoes while attracting bees and butterflies
Repel nematodes, aphids, and whiteflies while attracting beneficial insects
Act as trap crops for aphids and cucumber beetles, attract pollinators
Attracts beneficial predatory insects like lacewings and parasitic wasps
Attracts butterflies and beneficial insects, provides continuous bloom companion
✗ Keep away from
Produces juglone toxin that inhibits growth and can kill sensitive plants
Releases allelopathic compounds that suppress growth of nearby plants
Can be allelopathic and compete aggressively for nutrients and water
