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How to Grow Oklahoma Scarlet

Zinnia elegans

Your complete guide to growing Oklahoma Scarlet.

☀SunFull sun (6+ hours)
💧WaterModerate — about 1 inch per week, watered at the base
📅Harvest75-90 days
🗺Zones2–11
📏Height0-3 feet
Oklahoma Scarlet📷 Wikipedia: Zinnia elegans

When to Plant Oklahoma Scarlet

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
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

Catmint

Deters aphids, ants, and rodents while attracting beneficial pollinators

Cosmos

Attract beneficial insects and provide structural support without competing for nutrients

Lavender

Repels pests like moths and fleas while attracting pollinators

Marigolds

Repel nematodes and aphids while attracting beneficial insects

Nasturtiums

Act as trap crops for aphids and cucumber beetles, protecting nearby plants

Petunias

Repel aphids, tomato hornworms, and other garden pests

Sweet Alyssum

Attracts beneficial insects like lacewings and parasitic wasps

Zinnias

Attract pollinators and beneficial predatory insects while providing color contrast

✗ Keep away from

Black Walnut Trees

Release juglone toxin that inhibits growth and can kill sensitive flowering plants

Eucalyptus

Releases allelopathic oils that inhibit seed germination and plant growth

Sunflowers

Produce allelopathic compounds that can stunt growth of nearby smaller flowers

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.