How to Grow Oklahoma Scarlet
Zinnia elegans
Your complete guide to growing Oklahoma Scarlet.
When to Plant Oklahoma Scarlet
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 Scarlet
✓ Good companions
Deters aphids, ants, and rodents while attracting beneficial pollinators
Attract beneficial insects and provide structural support without competing for nutrients
Repels pests like moths and fleas while attracting pollinators
Repel nematodes and aphids while attracting beneficial insects
Act as trap crops for aphids and cucumber beetles, protecting nearby plants
Repel aphids, tomato hornworms, and other garden pests
Attracts beneficial insects like lacewings and parasitic wasps
Attract pollinators and beneficial predatory insects while providing color contrast
✗ Keep away from
Release juglone toxin that inhibits growth and can kill sensitive flowering plants
Releases allelopathic oils that inhibit seed germination and plant growth
Produce allelopathic compounds that can stunt growth of nearby smaller flowers