How to Grow Sunbright Supreme
Helianthus annuus
Your complete guide to growing Sunbright Supreme.
📷 Wikimedia CommonsWhen to Plant Sunbright Supreme
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 Sunbright Supreme
✓ Good companions
Attracts beneficial insects and may improve growth of nearby plants
Draw beneficial insects and provide natural pest control through companion diversity
Deters moths, fleas, and mosquitoes while attracting beneficial pollinators
Repel nematodes and aphids, protect roots from soil pests
Act as trap crops for aphids and cucumber beetles, attract beneficial insects
Repel aphids, tomato hornworms, and other common garden pests
Attracts beneficial insects like lacewings and parasitic wasps
Attract pollinators and beneficial predatory insects, compatible growth habits
✗ Keep away from
Produces juglone which is toxic to many flowering plants and inhibits growth
Produces natural herbicides that suppress growth of nearby flowering plants
Releases allelopathic compounds that inhibit growth of most garden plants
