How to Grow Tower Silver
Callistephus chinensis
Your complete guide to growing Tower Silver.
📷 Wikimedia CommonsWhen to Plant Tower Silver
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 Tower Silver
✓ Good companions
Attracts beneficial insects like hoverflies and parasitic wasps
Repels ants, aphids, and rodents while attracting beneficial insects
Repels aphids and Japanese beetles with strong sulfur compounds
Attracts beneficial predatory insects and provides habitat diversity
Repels aphids, moths, and other pests while attracting beneficial pollinators
Deters nematodes and aphids, acts as natural pest control
Acts as trap crop for aphids and cucumber beetles
Deters cabbage moths, carrot flies, and other flying pests
✗ 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
