How to Grow Katz Lavender Blue
Matthiola incana
Your complete guide to growing Katz Lavender Blue.
When to Plant Katz Lavender Blue
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 Lavender Blue
✓ Good companions
Repel aphids and other pests while requiring similar well-draining soil
Deters aphids and ants while attracting bees and butterflies
Attracts beneficial insects and provides contrasting flower colors
Similar water and soil requirements, both repel deer and rabbits
Compatible growth habits and extends blooming season
Complementary Mediterranean herbs with similar growing conditions
Similar low-water needs and provides late-season pollinator food
Attracts beneficial pollinators and has matching drought tolerance
✗ Keep away from
Needs shade and consistent moisture, opposite of lavender's sun and dry requirements
Requires frequent watering which can cause root rot in lavender
Aggressive spreader that competes for space and prefers moist conditions