How to Grow Benary's Giant Zinnia 'Benary's Giant Purple'
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Benary's Giant Zinnia 'Benary's Giant Purple'
Zinnia elegans 'Benary's Giant Purple'
flowerBenary's Giant Purple is a stunning cultivar of common zinnia known for its large, fully double dahlia-like blooms in rich purple hues that can reach 4-5 inches in diameter. This vigorous annual grows tall and upright, making it ideal for cutting gardens, borders, and arrangements. The plants produce prolific flowers throughout summer and fall until the first frost.
When should you plant Benary's Giant Zinnia 'Benary's Giant Purple' in your zone?
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Example Benary's Giant Zinnia 'Benary's Giant Purple' timeline · Pittsburgh, PA (Zone 6b)
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Plant Benary's Giant Zinnia 'Benary's Giant Purple'
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 Benary's Giant Zinnia 'Benary's Giant Purple' blooms
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Benary's Giant Zinnia 'Benary's Giant Purple' dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-10; annual in all zones, perennial only in frost-free regions
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Get my Benary's Giant Zinnia 'Benary's Giant Purple' timeline →Growth Stages
Seedling
2-3 weeksTiny green seedlings emerge with first true leaves appearing within 7-10 days; delicate and pale green
Keep soil warm (70-75°F), maintain consistent moisture without waterlogging, provide bright light to prevent leggy growth, thin seedlings to proper spacing early
Vegetative Growth
3-4 weeksPlant develops sturdy stems, multiple branch points, and increasingly dense foliage; grows 12-18 inches tall with full green leaves
Pinch off top 1-2 inches when plant reaches 6-8 inches tall to encourage bushier growth and more flowering points, ensure consistent moisture and full sun, apply balanced fertilizer every 2-3 weeks
Flowering Initiation
1-2 weeksFlower buds begin forming at branch tips; small green button-like structures appear among foliage
Reduce nitrogen, increase phosphorus and potassium with bloom-boosting fertilizer, maintain consistent watering, deadhead any early small flowers to encourage larger blooms, stake tall varieties if needed
Peak Flowering
6-8 weeksLarge 4-5 inch fully double purple dahlia-like blooms open continuously; plant reaches full height (24-36 inches) with profuse flowers
Deadhead spent blooms regularly to encourage continuous flowering, water deeply 1-2 times weekly depending on heat, monitor for pests and diseases, fertilize every 2 weeks with bloom formula
Continued Bloom & Decline
Until first frostFlowers continue but may slightly decrease in size as temperatures cool; foliage remains healthy until frost arrives
Continue deadheading, reduce fertilizer frequency, allow some flowers to remain for seed collection if desired, harvest flowers regularly for arrangements, pull plants after hard freeze
Common Pests
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Spray foliage with water to dislodge, use insecticidal soap, improve air circulation, maintain humidity
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Ensure good air circulation, avoid overhead watering, apply sulfur dust or fungicidal spray at first sign, remove infected leaves
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Use yellow sticky traps, spray with neem oil or insecticidal soap, remove heavily infested leaves
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Strong water spray to dislodge, introduce ladybugs, use insecticidal soap or neem oil
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Avoid overhead watering, ensure excellent drainage, remove and destroy affected plants, improve air circulation
Uses
Edible Flower Garnish
CulinaryZinnia petals are fully edible and can be used to garnish salads, desserts, and dishes for visual appeal and a mild, slightly peppery flavor. They add color and a delicate, subtle taste to culinary presentations. [source]
Cut Flower & Floral Arrangements
CraftBenary's Giant Purple zinnias are premium cut flowers with long stems and large, showy blooms perfect for vases, bouquets, wedding arrangements, and floral design. Their size and double form make them show-stopping focal flowers. [source]
Pollinator Attraction
WildlifeZinnias attract butterflies, bees, and hummingbirds throughout the growing season, making them excellent for supporting pollinator populations in gardens. The abundant flowers provide nectar and pollen from summer through fall. [source]
Dried Flowers
HouseholdZinnia blooms dry beautifully and retain their color and form, making them suitable for dried arrangements, wreaths, and craft projects. Hang-dry flowers upside down in a warm, dark location for 2-3 weeks. [source]
Traditional Herbal Use
MedicinalZinnia flowers have been used in traditional medicine systems to support respiratory health and as an anti-inflammatory agent, though scientific evidence is limited. Some cultures use zinnia tea for general wellness. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest flowers in early morning when stems are turgid and fully hydrated for longest vase life; cut stems at 45-degree angle just below a leaf node; remove lower leaves that would be submerged in water; flowers last 10-14 days in arrangements; deadhead spent blooms on plant regularly to encourage more blooming
Fun Facts
- 🌱 Benary's Giant is a German-developed cultivar prized by professional florists and has won numerous horticultural awards including mentions in international flower shows for its exceptional bloom size and form.
- 🌱 Zinnias were originally native to Mexico and were called 'youth-and-age' in Victorian times because they bloom continuously from youth through the end of the growing season.
- 🌱 The fully double dahlia-like form of Benary's Giant means the flowers contain many more petals than single-form zinnias, making them particularly stunning and long-lasting in arrangements.
Gardening Terms
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