How to Grow Katz Yellow
Matthiola incana
Your complete guide to growing Katz Yellow.
📷 Wikipedia: FlowerWhen to Plant Katz Yellow
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 Yellow
✓ Good companions
Attracts beneficial insects like lacewings and parasitic wasps for natural pest control
Repel aphids and other soft-bodied insects through natural sulfur compounds
Draw beneficial insects and provide structural support without competing for nutrients
Repels moths, fleas, and mosquitoes while attracting pollinators
Repel aphids, whiteflies, and nematodes while attracting beneficial insects
Act as trap crops for aphids and cucumber beetles, protecting nearby plants
Attracts beneficial insects and provides ground cover without root competition
Attract pollinators and beneficial predatory insects while providing complementary colors
✗ Keep away from
Releases juglone toxin that inhibits growth and can kill sensitive flowering plants
Produces allelopathic compounds that suppress growth of nearby plants
Inhibits growth of most garden plants through allelopathy and attracts harmful insects
