A close up of Orange Cactus Zinnia on a white background.
A floral arrangement of Orange Cactus Zinnias in an orange and white pitcher on a white background.
A close-up macro view of Orange Cactus Zinnias.
An overhead view of Orange Cactus Zinnias arranged on white background.
A trio of large Orange Cactus Zinnias with a ruler to show size on a white background.
A close up of Orange Cactus Zinnia on a white background.
A floral arrangement of Orange Cactus Zinnias in an orange and white pitcher on a white background.
A close-up macro view of Orange Cactus Zinnias.
An overhead view of Orange Cactus Zinnias arranged on white background.
A trio of large Orange Cactus Zinnias with a ruler to show size on a white background.

Zinnia Seeds,
Orange Cactus

4.33 ReviewsSKU: #FL783Min. seed count: 100
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Description

(Zinnia elegans). These extra-large cactus flowered blooms glow with a unique tangerine tone. Cactus-flowering zinnias are characterized by slender, slightly recurved petals. Plants reach 2 to 3 feet tall and blooms are an impressive 4 to 6 inches across. A radiant pollinator attractor and splendid in the cut garden or landscape!

Growing Tips: Orange Cactus zinnias grow best in full sun and well-draining, nutrient-rich soil. To enhance their vibrant blooms even more, amend the planting area with compost before sowing. These zinnias are "cut-and-come-again" flowers, meaning they continue producing blooms throughout the season with regular cutting or deadheading. This makes them great for both ornamental and pollinator gardens.

Plant Details

Botanical Name
Zinnia elegans
Life Cycle
Annual
Sun Requirement
6–8 hr.
Days to Germinate
4–6
Days to Maturity
75–90
Planting Depth
¼ in.
Plant Spacing
9–12 in.
Ideal Temperature
70–95°F
Frost Hardy
No

When to Grow

Sow Orange Cactus Zinnias outdoors after the last frost, or start indoors about 4 weeks earlier for an extended bloom period. They germinate best in warm soil, 75 to 80°F, and typically take 75 to 90 days to flower, blooming through summer and early fall. 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

Plant seeds about ¼ inch deep, spacing 9 to 12 inches apart for good air circulation. This spacing helps prevent powdery mildew, a common zinnia issue in humid conditions. Water thoroughly after planting, but avoid waterlogged soil, as these flowers do best with moderate soil moisture. If starting indoors, use biodegradable pots or other means to minimize root disturbance when transplanting​.

How to Grow

Once established, these zinnias are low-maintenance and drought-tolerant, but they do appreciate consistent moisture, especially during dry spells. A light, balanced fertilizer applied every 4 to 6 weeks can improve growth and blooming.

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

Do Orange Cactus zinnias attract pollinators?

Yes, these bright blooms are highly attractive to bees, butterflies, hummingbirds, and other beneficial pollinators, making them valuable in pollinator-friendly gardens.

Are Orange Cactus zinnias suitable for container growing?

Yes, with sufficient sunlight and rich soil, they grow well in large containers.

How tall do Orange Cactus zinnias grow?

These zinnias can reach up to 3 feet tall, making them a great choice for adding height and layers to garden beds or borders.

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