How to Grow Zahara Scarlet
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Zahara Scarlet
Zinnia elegans 'Zahara Scarlet'
flowerZahara Scarlet is a compact, heat-loving zinnia cultivar known for its vibrant scarlet-red double flowers and exceptional disease resistance. Bred for garden performance, it produces continuous blooms throughout the growing season with minimal deadheading required. This dwarf variety grows 12-18 inches tall, making it ideal for borders, containers, and mass plantings.
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Example Zahara Scarlet timeline · Pittsburgh, PA (Zone 6b)
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Plant Zahara Scarlet
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Zahara Scarlet blooms
Around Jun 1≈ 45 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-11; performs best in warm climates (zones 5-10)
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Seedling
7-14 daysTiny seedlings with first true leaves emerging; very delicate and susceptible to damping off
Keep soil moist but never soggy; provide bottom heat (70-75°F) for best germination; provide bright light immediately after sprouting; thin seedlings to prevent overcrowding
Vegetative Growth
2-3 weeksPlant develops multiple sets of true leaves and branches; still no flower buds visible; compact, bushy growth habit
Pinch back seedlings when 3-4 inches tall to encourage bushiness; transplant to larger containers if needed; maintain consistent moisture; fertilize every 2 weeks with balanced fertilizer
Flowering Initiation
1-2 weeksFirst flower buds appear at stem tips; plant reaches near-mature height; foliage is full and dense
Reduce nitrogen fertilizer to encourage blooming; switch to higher phosphorus fertilizer (e.g., 10-20-10); maintain regular watering; ensure full sun exposure
Blooming
6-12 weeks (entire growing season)Large, double scarlet-red flowers open continuously; petals are full and ruffled; flowers last 7-10 days each
Deadhead spent flowers to encourage continuous blooming (though Zahara is self-cleaning); water at soil level to avoid leaf spotting; monitor for powdery mildew (rare but possible in humid conditions)
Decline
2-4 weeks before first frostFlowering slows as temperatures drop in fall; plant may begin to decline with first frost; growth stops below 50°F
Zahara is an annual and will not survive hard frosts; allow last flowers to set seed if saving seeds; compost plant material; plan for winter rest in cold climates
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with neem oil or insecticidal soap every 5-7 days; increase humidity and water foliage in early morning; remove heavily infested leaves
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Improve air circulation; avoid overhead watering; apply sulfur dust or fungicide at first sign; Zahara has good resistance but can develop in high humidity
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Use yellow sticky traps; spray with insecticidal soap; neem oil applied weekly; encourage natural predators
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Strong spray of water to dislodge; insecticidal soap; neem oil; encourage ladybugs and lacewings
Uses
Edible flower garnish
CulinaryZinnia petals are edible and add vibrant scarlet color to salads, desserts, and beverages. The flowers have a mild, slightly peppery flavor that complements fresh cuisine and cocktails. [source]
Cut flowers and arrangements
CraftZahara Scarlet's long stems and abundant double blooms make it excellent for floral arrangements and cut flower gardens. Flowers last 7-10 days in a vase, providing continuous color for indoor displays. [source]
Pollinator attraction
WildlifeZinnias attract butterflies, bees, and hummingbirds throughout the growing season, making them valuable for pollinator gardens. The abundant nectar and pollen support beneficial insect populations. [source]
Dried flowers
HouseholdZahara Scarlet flowers dry well when hung upside-down in a warm, dark, well-ventilated space. Dried flowers retain their brilliant scarlet color and can be used in wreaths, arrangements, and crafts for months. [source]
Herbal tea ingredient
CulinaryDried zinnia petals can be brewed into a mild, slightly citrusy herbal tea. Traditionally used in some cultures for its subtle flavor and ornamental presentation. [source]
Harvest Tips
Cut flowers in early morning or late evening for longest vase life (7-10 days). Cut stems just above a leaf node to encourage branching and more flowers. Remove spent blooms regularly to promote continuous flowering throughout the season. For seed saving, allow a few flowers to dry on plant; collect seed heads when brown and papery, dry indoors, and store in cool, dry place.
Fun Facts
- 🌱 The Zahara series was specifically bred by Syngenta for exceptional disease resistance, particularly to powdery mildew and many common fungal diseases, making it a reliable choice for humid climates.
- 🌱 Zinnias were named after Johann Gottfried Zinn, an 18th-century German botanist, and originated in Mexico, where they are still found in wild form.
- 🌱 Zahara Scarlet is largely self-cleaning, meaning old flowers drop naturally without deadheading, though removing spent blooms still encourages even more prolific flowering.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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