How to Grow Red Hotspot Acalypha

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Red Hotspot Acalypha

Acalypha wilkesiana 'Red Hotspot'

shrub

Red Hotspot Acalypha is a tropical ornamental shrub prized for its large, colorful foliage featuring deep red leaves with bright red or copper-colored spots and blotches. This cultivar is a dramatic accent plant that adds vibrant color to gardens, containers, and indoor spaces. It thrives in warm, humid climates and requires regular pruning to maintain an attractive, bushy form.

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Example Red Hotspot Acalypha timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Red Hotspot Acalypha

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Red Hotspot Acalypha

    Around Jul 16

    ≈ 90 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Red Hotspot Acalypha dates for your own zip code.

Growing Conditions

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Sun: Bright, indirect light to partial shade; prefers 4-6 hours of filtered sunlight daily. Intense afternoon sun can scorch leaves in extremely hot climates.
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Water: Keep soil consistently moist but not waterlogged. Water deeply when the top inch of soil feels dry. Increase frequency during hot weather and reduce in winter. Excellent drainage is critical to prevent root rot.
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Spacing: 24 inches
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Days to maturity: 90-180 days to reach decorative size
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Planting depth: Surface level for seeds; transplants at same depth as nursery pot

Soil

Type: Well-draining, fertile loamy soil rich in organic matter
pH: 6.0-6.5
Amendments:
compost peat moss perlite for drainage aged bark

Growing Zones

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Zones 10b-11; grows best in tropical and subtropical regions

10b 11a 11b

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Growth Stages

1

Seedling

4-6 weeks

Small plants with initial true leaves emerging; foliage color develops gradually from green with hints of red spotting

Maintain high humidity (60-70%), provide bright indirect light, keep soil moist but well-draining, protect from drafts and temperature fluctuations

2

Vegetative Growth

8-12 weeks

Rapid stem and leaf development; foliage becomes larger with increasingly vibrant red and copper spotting patterns

Pinch growing tips to encourage bushiness, fertilize bi-weekly with balanced or slightly nitrogen-rich fertilizer, maintain warm temperatures (70-85°F), increase light gradually

3

Establishment

Ongoing, 12+ weeks

Plant reaches desired size with full foliage color and pattern; new growth continues with mature leaf characteristics

Continue regular pruning to shape plant, maintain consistent moisture and humidity, fertilize monthly with balanced fertilizer, monitor for pests in warm conditions

4

Mature Plant

6+ months to indefinite

Full-sized shrub (2-5 feet tall depending on cultivar and conditions) with dense foliage displaying vibrant red and copper spotting throughout

Prune regularly to maintain shape and encourage dense branching, fertilize monthly during growing season, reduce watering and feeding in winter, repot every 1-2 years if container-grown

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Cold-sensitive plants in marginal zones Plants requiring dry conditions Aggressive spreading ground covers that compete for space

Common Pests

  • Increase humidity, spray with water to dislodge, use insecticidal soap or neem oil, treat affected areas regularly

  • Remove with cotton swabs dipped in rubbing alcohol, spray with neem oil or insecticidal soap, isolate affected plants

  • Inspect regularly, remove with soft brush and alcohol solution, apply horticultural oil spray, treat persistently infested plants

  • Use yellow sticky traps, increase air circulation, spray with insecticidal soap or neem oil weekly until controlled

  • Improve air circulation, avoid wetting foliage during watering, remove affected leaves, apply fungicide if severe

Uses

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Tropical Landscape Accent

Ornamental

Red Hotspot Acalypha serves as a striking focal point in tropical and subtropical gardens, borders, and mixed plantings. Its vibrant foliage provides year-round color in frost-free climates. [source]

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Indoor Container Plant

Household

Excellent for growing in pots indoors near bright windows or under grow lights, adding dramatic color to homes, offices, and conservatories. Thrives in humid indoor environments like bathrooms. [source]

🎨

Decorative Foliage Arrangements

Craft

Large, colorful leaves are attractive in fresh floral arrangements and tropical-themed designs. Cuttings last several days in water and add unique texture and color. [source]

🦋

Hummingbird and Pollinator Plant

Wildlife

Produces small inconspicuous flowers that attract hummingbirds and beneficial insects, providing nectar and contributing to garden biodiversity in tropical regions. [source]

Harvest Tips

Red Hotspot Acalypha is grown for foliage rather than harvest. Pinch or prune stems regularly to encourage bushier growth and vibrant coloring. Remove any leggy or sparse growth. Cuttings can be propagated in water or moist soil medium for new plants. Best color display occurs with consistent care and bright light conditions.

Fun Facts

  • 🌱 Acalypha wilkesiana 'Red Hotspot' is native to the Pacific Islands and was named after the bright, spotted pattern on its leaves that resembles heat spots or hot embers
  • 🌱 The plant is sometimes called 'Match Me If You Can' because of the difficulty in achieving perfectly uniform coloring and spotting—color intensity varies based on light, temperature, and nutrients
  • 🌱 Acalypha species have historically been used in traditional medicine in Pacific Island cultures, though Red Hotspot is primarily grown as an ornamental today

Gardening Terms

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

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