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How to Grow Pink Frost

iNaturalist

Pink Frost

Alternanthera dentata 'Pink Frost'

shrub

Pink Frost is a stunning ornamental foliage plant known for its vibrant pink and white variegated leaves with delicate serrated edges. This tender perennial shrub is prized for adding bold color contrast to gardens, containers, and landscape designs. It's a heat-loving plant that thrives in warm climates and is often grown as an annual in cooler regions.

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Example Pink Frost timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Pink Frost

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Pink Frost

    Around May 17

    ≈ 30 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Pink Frost dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily for best color intensity; tolerates partial shade but loses vibrant variegation
💧
Water: Keep soil consistently moist but not waterlogged; water deeply when top inch of soil is dry. More frequent watering needed in hot weather and containers
📏
Spacing: 12 inches
📅
Days to maturity: 30-45 days to established size
🌱
Planting depth: Same depth as root ball for transplants; seeds should be surface-sown or barely covered

Soil

Type: Well-draining loamy soil rich in organic matter
pH: 6.0-7.0
Amendments:
compost peat moss perlite for drainage

Growing Zones

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Ideal in zones 10-11; grow as an annual in zones 9a-9b with protection

10b 11a 11b

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Growth Stages

1

Seedling/Propagation

2-3 weeks

Tiny plants with first true leaves emerging; pink variegation may not be fully apparent yet

Keep soil warm (70-75°F) and consistently moist; provide bright indirect light; maintain high humidity

2

Vegetative Growth

4-6 weeks

Rapid leaf expansion with pink and white variegation becoming more prominent; bushy growth forming

Pinch back growing tips to encourage branching; maintain full sun exposure for color intensity; fertilize every 2 weeks with balanced fertilizer

3

Established Plant

Ongoing until frost or season end

Full, bushy form with dense foliage showing vibrant pink variegation throughout; plant reaches mature width and height

Continue pinching tips if needed to maintain shape; deadhead small flowers if desired; maintain consistent moisture and full sun

4

Flowering

Summer through fall

Tiny, inconspicuous cream or white flowers appear in spike-like inflorescences; foliage remains the main ornamental feature

Flowers are not showy; remove them if preferred to encourage more foliage; continue regular fertilizing

Companion Planting

Plan your garden →

Plant with:

Coleus Caladiums Dusty Miller Purple Heart Sweet potato vine Impatiens Begonias

Avoid planting near:

aggressive spreading perennials plants requiring very dry conditions

Common Pests

  • Mist foliage regularly to increase humidity; spray with neem oil or insecticidal soap every 7-10 days

  • Use yellow sticky traps; spray with neem oil or insecticidal soap; remove heavily infested leaves

  • Spray with rubbing alcohol on cotton swabs; apply neem oil weekly; isolate infested plants

  • Remove affected leaves; improve air circulation; avoid wetting foliage; apply fungicide if severe

Uses

🎨

Ornamental Arrangements

Craft

Pink Frost's striking variegated foliage is ideal for fresh floral and foliage arrangements, adding vibrant color contrast to bouquets and mixed displays. [source]

🏠

Container & Landscape Design

Household

Commonly used in mixed container plantings, annual borders, and tropical-style gardens for bold color contrast and textural interest in garden beds. [source]

🏠

Bedding Plant

Household

Serves as a versatile annual or tender perennial bedding plant that adds eye-catching color and structure to gardens, whether as a specimen or mass planting. [source]

🦋

Pollinator Garden

Wildlife

While foliage is the main attraction, the small flowers provide nectar for butterflies and other beneficial insects in the garden. [source]

Harvest Tips

Not harvested for consumption; pinch or trim foliage as desired for arrangement or to shape the plant. Cuttings root readily in water or moist soil for propagation

Fun Facts

  • 🌱 Pink Frost is a cultivar of Alternanthera dentata, a tropical plant native to Central and South America, and has become popular worldwide for container gardening.
  • 🌱 The variegated pink and white coloring intensifies in direct sunlight; plants grown in shade will develop predominantly green leaves with less pink pigmentation.
  • 🌱 Pink Frost propagates extremely easily from cuttings, rooting in water within 1-2 weeks, making it simple to create new plants or overwinter indoors in cold climates.

Gardening Terms

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

Annual Deadhead Full Sun Partial Shade Perennial Pinch Back True Leaves
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