How to Grow SunFill™ Purple
Helianthus annuus
Your complete guide to growing SunFill™ Purple.
📷 Wikipedia: Common sunflowerWhen to Plant SunFill™ Purple
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 SunFill™ Purple
✓ Good companions
Similar growing requirements and attracts beneficial insects
Provide complementary colors and attract butterflies and bees
Silver foliage provides excellent contrast to purple flowers
Repel nematodes and aphids while attracting beneficial insects
Act as trap crops for aphids and cucumber beetles
Repels harmful insects and attracts pollinators with complementary purple tones
Low-growing ground cover that attracts beneficial wasps and hoverflies
Attract pollinators and beneficial predatory insects
✗ Keep away from
Produce juglone toxin that inhibits growth of many flowering plants
Allelopathic properties suppress growth of nearby plants
Inhibits growth of most garden plants through allelopathy
