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Zinnia Seeds

Zinnia Seeds, Oklahoma Carmine
Description
(Zinnia elegans). These carmine-violet pompom zinnias are perfect for cut flowers, with 2.5” blooms that range from semi-double to quadruple. Hardy and exceptional in any garden, they come from the renowned Benary Seeds of Germany.
- Annual
- 60-70 days to maturity
- 6-8 hours of full sun
- Sprouts in 4-6 days
- Seed Depth: 1/4"
- Plant Spacing: 9-12"
- Ideal Temperature: 70-95 F
- Frost Hardy: No
Growing Tips, Tricks and FAQs
Growing Tips
Oklahoma Carmine zinnias are best planted in full sun and well-draining, rich soil. This variety is known for its excellent resistance to powdery mildew, making it low-maintenance and ideal for both beginner and experienced gardeners. Adding compost or organic matter before planting will enhance growth, particularly in nutrient-poor soil.
When to Grow
Plant Oklahoma Carmine zinnia seeds after the last frost date in your area. For earlier blooms or in colder areas, start seeds indoors about 4 weeks before the expected last frost. The direct-sown seeds will bloom in approximately 75-90 days, while indoor starts may reduce this timeframe slightly.
How to Sow and Plant
Sow seeds directly into the ground at a depth of 1/4 inch, spacing them 9-12 inches apart for good airflow. Indoor seed starts can be sown in trays, with seedlings ready for transplant once they have two sets of true leaves. Seeds usually germinate in 4-6 days. The ideal germination temperature is 75-80 F. If starting indoors, use biodegradable pots or other means to minimize root disturbance when transplanting.
How to Grow
Water deeply, allowing the soil to dry slightly between waterings, as zinnias are prone to root rot if overwatered. Regular deadheading encourages continuous flowering, and pinching young plants promotes bushier growth. Apply a balanced fertilizer once at planting time, and mulch around the base to retain moisture and prevent weeds.
How to Save
- 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
Is Oklahoma Carmine zinnia resistant to diseases?
This variety is particularly resistant to powdery mildew, a common issue with zinnias, making it ideal for humid climates.
What’s the best way to extend blooming for Oklahoma Carmine zinnia?
Regular deadheading and pinching will promote more blooms, and spacing plants adequately will help maintain airflow and reduce disease risks.
How long does it take for Oklahoma Carmine zinnia to bloom?
This zinnia blooms about 60-70 days after direct sowing, depending on weather and care.