How to Grow Classic Magic
Centaurea cyanus
Your complete guide to growing Classic Magic.
When to Plant Classic Magic
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 Classic Magic
✓ Good companions
Attracts beneficial insects like hoverflies and parasitic wasps for pest control
Attract parasitic wasps and other beneficial insects while providing habitat
Deters moths, fleas, and mice while attracting pollinators like bees
Repel nematodes, aphids, and whiteflies while attracting beneficial insects
Act as trap crops for aphids and cucumber beetles, repel squash bugs
Repel aphids, tomato hornworms, and other garden pests naturally
Attract beneficial birds and insects, provide natural support structure
Attract beneficial predatory insects and butterflies for natural pest management
✗ Keep away from
Release 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 allelopathic root secretions