How to Grow Sunrich Orange
Helianthus annuus
Your complete guide to growing Sunrich Orange.
📷 Wikimedia CommonsWhen to Plant Sunrich Orange
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 Sunrich Orange
✓ Good companions
Fix nitrogen in soil, benefiting sunflowers' nutrient needs
Similar growing requirements and can provide wind protection for each other
Complement sunflowers aesthetically and attract beneficial insects
Can climb sunflower stalks for support and benefit from partial shade
Benefits from shade provided by tall sunflowers during hot weather
Repel aphids, whiteflies, and nematodes while attracting beneficial insects
Act as trap crop for aphids and cucumber beetles, protecting sunflowers
Attract pollinators and beneficial predatory insects like ladybugs
✗ Keep away from
Produces juglone toxin that inhibits sunflower growth and development
Releases allelopathic compounds that stunt sunflower growth
Heavy climbing beans can break sunflower stems and compete for nutrients
Compete for similar soil nutrients and may harbor common pests
