How to Grow Benary's Giant Mix Zinnia

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Benary's Giant Mix Zinnia

Zinnia elegans 'Benary's Giant Mix'

flower

Benary's Giant Mix is a premium cut-flower zinnia variety producing large, fully-double blooms in a vibrant mixture of colors including red, pink, orange, yellow, and purple. These towering zinnias can reach 3-4 feet tall and are prized by florists and gardeners for their long stems and exceptional vase life. They bloom prolifically from midsummer through frost, making them ideal for cutting gardens and continuous color displays.

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Example Benary's Giant Mix Zinnia timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Benary's Giant Mix Zinnia

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Benary's Giant Mix Zinnia blooms

    Around Jun 26

    ≈ 70 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Benary's Giant Mix Zinnia dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily minimum (8+ hours preferred)
💧
Water: Water regularly, 1-1.5 inches per week. Keep soil consistently moist but not waterlogged. Water at soil level to prevent mildew. More frequent watering needed during hot spells.
📏
Spacing: 18 inches
📅
Days to maturity: 70-85 days from seed to first blooms
🌱
Planting depth: 0.25 inches (just press seeds onto soil surface or barely cover)

Soil

Type: Well-draining loamy to sandy soil
pH: 6.0-7.5
Amendments:
Compost aged manure perlite for drainage

Growing Zones

Find your zone →

Thrives in zones 2-11 as an annual; best performance in zones 5-9

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

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Growth Stages

1

Seedling

2-3 weeks

Small sprouted plant with 2-4 true leaves emerging after 5-10 days. Very tender and fragile.

Keep soil warm (70-75°F) and consistently moist. Provide bright light to prevent leggy growth. Thin seedlings to proper spacing or transplant to individual pots.

2

Vegetative Growth

3-4 weeks

Plant grows rapidly with multiple sets of true leaves and developing lateral branches. Reaches 6-12 inches tall with sturdy stems forming.

Pinch off top growth when plants reach 6-8 inches to encourage bushier growth and more lateral stems. Water and fertilize regularly. Harden off transplants gradually before planting outdoors.

3

Branching & Development

2-3 weeks

Plant reaches 12-24 inches with well-developed branch structure. Leaf production continues but first flower buds begin forming.

Continue light fertilizing with balanced or slightly higher phosphorus formula. Remove any early flower buds to allow plant maturation. Stake tall varieties if windy. Monitor for pests.

4

Flowering

8-12 weeks until frost

Large, fully-double blooms appear in mixed colors. Plant reaches full height of 3-4 feet with numerous flower stems emerging continuously.

Deadhead spent flowers regularly to encourage continuous blooming. Cut flowers in early morning for best vase life. Feed with bloom-promoting fertilizer every 2-3 weeks. Stake tall stems if needed.

5

Decline

Until frost

After hard frost (28°F or below), plant blackens and stops blooming. Seeds may develop on remaining flowers.

Remove and compost dead plants. Collect seed pods if you want to save seeds for next year. Clean up garden debris to prevent overwintering pests and diseases.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel Dill

Common Pests

  • Ensure good air circulation, water at soil level only, remove affected leaves. Apply sulfur or fungicide if needed. Avoid overhead watering.

  • Spray with water to increase humidity, use neem oil or insecticidal soap. Remove heavily affected leaves.

  • Handpick early morning, use yellow sticky traps, or apply neem oil. Remove nearby wild grapes to reduce beetle populations.

  • Spray with water, use insecticidal soap, or apply neem oil. Encourage beneficial insects like ladybugs.

  • Remove infected plants immediately, improve drainage, avoid overhead watering, sanitize tools between plants.

Uses

🍳

Edible Flowers

Culinary

Zinnia petals are edible and add colorful, slightly peppery flavor to salads, desserts, and beverages. Only edible varieties grown without pesticides should be consumed. [source]

🏠

Cut Flower Arrangements

Household

Benary's Giant Mix is exceptional for fresh cut flower arrangements due to long stems, large blooms, and extended vase life. Professional florists prize this variety for wedding bouquets and event centerpieces. [source]

🎨

Dried Flowers

Craft

Zinnia blooms dry well and retain color beautifully, making them ideal for dried arrangements, pressed flower crafts, and potpourri. Hang-dry or use silica gel for best results. [source]

🦋

Pollinator Attraction

Wildlife

Zinnias attract butterflies, bees, and other beneficial insects throughout the growing season. The abundant nectar makes them a valuable late-summer resource for pollinators. [source]

💊

Traditional Herbal Uses

Medicinal

In traditional medicine systems, zinnia has been used to address digestive and skin concerns. Modern scientific validation is limited, but the plant contains antioxidant compounds. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Cut flowers in early morning when stems are fully hydrated, using sharp clean scissors or pruners. Cut just above a leaf node to encourage branching below the cut. Remove lower leaves that would sit in water. Change vase water every 2-3 days and re-cut stems at an angle. Cut regularly to stimulate more blooms. Zinnias typically last 5-7 days in a vase.

Fun Facts

  • 🌱 Benary's Giant Mix is a German-bred cultivar from Ernst Benary seed company, one of Europe's oldest seed producers, established in 1843.
  • 🌱 Zinnias are originally native to Mexico and were brought to Europe in the 16th century, where they were selectively bred for larger and more elaborate double flowers.
  • 🌱 This variety can produce flowers up to 4-5 inches in diameter, and a single plant can yield 20-30+ cut-quality stems throughout the season with proper deadheading.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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