How to Grow Oklahoma Formula Mix Improved
Zinnia elegans
Your complete guide to growing Oklahoma Formula Mix Improved.
📷 Wikipedia: Zinnia elegansWhen to Plant Oklahoma Formula Mix Improved
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 Oklahoma Formula Mix Improved
✓ Good companions
Support beneficial insects and create natural pest control partnerships
Attracts beneficial wasps and predatory insects that control garden pests
Repels moths, fleas, and mosquitoes while attracting beneficial pollinators
Repel nematodes, aphids, and other harmful insects while attracting beneficial pollinators
Act as trap crops for aphids and cucumber beetles, protecting nearby flowers
Provide beneficial insect habitat and can offer wind protection for smaller flowers
Ground cover that attracts hover flies and other beneficial predatory insects
Attract beneficial insects and pollinators, complement wildflower displays
✗ Keep away from
Release juglone toxin that inhibits growth and can kill many flowering plants
Competes aggressively for nutrients and water, suppressing wildflower establishment
Produces allelopathic compounds that suppress germination and growth of nearby plants
