How to Grow Frozen in Time Bicolor

Frozen in Time Bicolor

Zinnias elegans 'Frozen in Time Bicolor'

flower

Frozen in Time Bicolor is a compact, dwarf zinnia variety prized for its striking two-tone petals featuring white centers with deep purple or burgundy outer petals. This cultivar produces abundant blooms on bushy, self-branching plants, making it ideal for containers, borders, and cut flowers. The flowers attract pollinators and provide long-lasting color throughout the growing season.

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Example Frozen in Time Bicolor timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Frozen in Time Bicolor

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Frozen in Time Bicolor blooms

    Around Jun 1

    ≈ 45 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Frozen in Time Bicolor dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; 8+ hours preferred for best blooming
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Water: Keep soil consistently moist but not waterlogged during establishment. Once established, moderately drought-tolerant; water deeply when top inch of soil feels dry. Reduce watering in fall. Avoid overhead watering to prevent fungal diseases.
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Spacing: 12 inches
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Days to maturity: 45-60 days from transplant to first blooms
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Planting depth: Sow seeds 1/4 inch deep; plant transplants at same depth as nursery container

Soil

Type: Well-draining loamy or sandy soil
pH: 6.0-7.5
Amendments:
Compost Peat moss or coconut coir Perlite for drainage Balanced fertilizer (10-10-10)

Growing Zones

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Thrives in zones 3-11; grown as an annual in cooler climates

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

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Growth Stages

1

Seedling

2-3 weeks

Tiny seedlings with first true leaves emerging; very delicate with thin stems

Maintain warm soil (70-75°F), consistent moisture, and bright light. Provide gentle air circulation. Keep under grow lights or in bright window.

2

Vegetative Growth

3-4 weeks

Plants developing multiple sets of leaves and branching structure; bushy appearance beginning

Pinch back growing tips when 4-6 inches tall to encourage bushiness and more flower sites. Gradually harden off transplants before outdoor planting.

3

Bud Formation

2-3 weeks

Compact mounds of foliage with visible flower buds forming at branch tips

Begin regular watering schedule; fertilize every 2-3 weeks with balanced fertilizer. Maintain full sun exposure. Remove any diseased leaves.

4

Flowering

8-12 weeks (extended with deadheading)

Abundant bicolor blooms opening; white centers with deep purple/burgundy edges fully visible

Deadhead spent flowers regularly to promote continuous blooming. Water consistently. Monitor for pests. Apply light fertilizer if needed.

5

Seed Development & Decline

4-6 weeks until frost

Flowers fade as plants produce seed heads; foliage may yellow if left unharvested

Allow some flowers to mature for seed collection if desired. Remove plants as they decline in fall or after first frost.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel Dill Other plants with competitive root systems that prefer drier conditions

Common Pests

  • Spray with insecticidal soap or neem oil; increase humidity and air circulation; prune heavily infested leaves

  • Improve air circulation; avoid overhead watering; apply sulfur dust or fungicide if needed; remove affected leaves

  • Spray with water to dislodge; use insecticidal soap; encourage beneficial insects like ladybugs

  • Yellow sticky traps; insecticidal soap; neem oil spray; improve air circulation

  • Hand-pick in early morning; use pheromone traps away from plants; apply neem oil

Uses

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Edible Flowers

Culinary

Zinnia petals are edible and can add color and mild flavor to salads, desserts, and beverages. The delicate bicolor petals make an attractive garnish. [source]

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Cut Flowers & Arrangements

Household

Frozen in Time Bicolor excels as a cut flower, offering long vase life and striking bicolor blooms perfect for bouquets and floral arrangements. Their abundance makes them ideal for continuous flower harvesting. [source]

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Pollinator Support

Wildlife

These flowers are excellent nectar and pollen sources for bees, butterflies, and beneficial insects. Planting them supports pollinator populations throughout the growing season. [source]

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Dried Flowers

Craft

Zinnia blooms dry exceptionally well and retain their color for months, making them ideal for dried arrangements, wreaths, and pressed flower crafts. [source]

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Container & Border Gardening

Household

The compact, dwarf habit and self-branching nature make Frozen in Time Bicolor perfect for pots, hanging baskets, raised beds, and as edging in flower borders. [source]

Harvest Tips

Cut flowers in early morning when stems are fully hydrated. Pinch or cut stems at least 1/3 of the way down, removing lower leaves below the waterline. Zinnias last 7-10 days in fresh water vases. Deadhead spent flowers regularly to encourage new blooms all season. For seed collection, allow flowers to fully mature on plant, dry completely on the stem, then harvest seed heads.

Fun Facts

  • 🌱 Zinnias are named after Johann Gottfried Zinn, an 18th-century German botanist, and are native to Mexico where they have been cultivated for centuries by Indigenous peoples.
  • 🌱 Frozen in Time Bicolor's unusual two-tone coloring is a result of modern plant breeding; selective breeding has created increasingly striking bicolor patterns in zinnias over recent decades.
  • 🌱 Zinnias are one of the easiest flowers to grow from seed and can produce blooms in as little as 6-8 weeks from direct sowing, making them perfect for beginner gardeners and quick garden transformations.

Gardening Terms

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

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