How to Grow Guardian White
Delphinium elatum
Your complete guide to growing Guardian White.
📷 Wikimedia CommonsWhen to Plant Guardian 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 Guardian White
✓ Good companions
Repels mosquitoes, ants, and aphids more effectively than DEET
Attracts beneficial insects and provides natural pest control
Deters pests with strong fragrance and attracts pollinators
Repel aphids, whiteflies, and nematodes while attracting beneficial insects
Act as trap crops for aphids and cucumber beetles
Repel aphids, tomato hornworms, and other garden pests
Attracts beneficial insects like lacewings and parasitic wasps
Attracts beneficial predatory insects and butterflies
✗ Keep away from
Produces juglone toxin that inhibits growth and can kill sensitive plants
Releases allelopathic compounds that suppress nearby plant growth
Inhibits growth of most garden plants through allelopathic root secretions
