Four Oklahoma White Zinnias on a white background.
A profile view of single Oklahoma White Zinnia bloom on a light background.
Four Oklahoma White Zinnias on a white background.
A profile view of single Oklahoma White Zinnia bloom on a light background.

Zinnia Seeds,
Oklahoma White

52 ReviewsSKU: #FL1020Min. seed count: 30
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Description

(Zinnia elegans). We adore these charming white snowballs of the garden! The 2.5-inch blooms range from semi-double to quadruple. Amazing!

Growing Tips: Oklahoma White zinnias grow best in nutrient-rich, well-draining soil. Deadhead regularly to encourage the production of fresh blooms. Choose a planting site that receives 6 to 8 hours of full sun every day.

Plant Details

Botanical Name
Zinnia elegans
Life Cycle
Annual
Sun Requirement
6–8 hr.
Days to Germinate
4–6
Days to Maturity
60–70
Planting Depth
¼ in.
Plant Spacing
9–12 in.
Ideal Temperature
70–95°F
Frost Hardy
No

When to Grow

Oklahoma White Zinnias can be sown outdoors after the last frost, or started indoors about 4 weeks earlier to extend the blooming season. They perform best when soil temperatures reach around 75 to 80°F. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

How to Sow and Plant

Sow seeds ¼ inch deep, spacing them 9 to 12 inches apart to allow for good airflow, which helps prevent powdery mildew. Oklahoma White zinnias grow to about 30 to 40 inches tall and require spacing for air circulation to keep them healthy. If starting indoors, use biodegradable pots or other means to minimize root disturbance when transplanting​.

How to Grow

These zinnias need regular but moderate watering, allowing the soil to dry slightly between waterings to prevent disease. Fertilizing lightly every 4-6 weeks supports abundant blooms. In hot climates, they tolerate partial shade but will still need plenty of sunlight to thrive.

How to Save Seeds

  • Allow the flowerhead containing the seeds to mature and dry on the plant.
  • Clip off the flowerhead and place it in a paper bag or other container.
  • Working over the top of another clean, opened container, rub the flowerheads between the palms to break them apart.
  • The seeds can be separated from the chaff by first screening and then winnowing.
  • Store in a cool, dry, dark place over winter.

FAQ

How long until Oklahoma White zinnias bloom?

They typically take 60 to 70 days from sowing to bloom, making them a late summer favorite.

Do Oklahoma White zinnias attract pollinators?

Yes, these flowers attract butterflies and other beneficial pollinators, making them a great addition to pollinator-friendly gardens.

Can Oklahoma White zinnias be grown in containers?

Yes, they perform well in containers if they receive full sun and proper drainage.

Browse our full range of zinnia seeds.

Customer reviews

5 / 5 2 Reviews
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