How to Grow Red Hottest Acalypha
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Red Hottest Acalypha
Acalypha wilkesiana 'Red Hottest'
shrubRed Hottest Acalypha is a tropical foliage shrub prized for its intensely colored, crinkled leaves that range from deep burgundy to fiery red with contrasting veining. This cultivar is more compact and vibrant than the species, making it ideal for container gardens and ornamental landscapes. It thrives in warm climates and produces inconspicuous flowers, with the foliage being the primary ornamental feature.
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Example Red Hottest Acalypha timeline · Pittsburgh, PA (Zone 6b)
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Plant Red Hottest Acalypha
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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Harvest Red Hottest Acalypha
Around Jun 16≈ 60 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 10-11; can be grown as an annual or container plant in zones 9 and cooler regions moved indoors during winter
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Seedling/Cutting Propagation
2-4 weeks for rootingYoung plants are small with simple leaves; can be propagated from softwood cuttings
Maintain high humidity and warmth (70-75°F). Use rooting hormone on cuttings. Keep soil moist but not soggy. Provide bright indirect light.
Establishment
4-8 weeksNew growth emerges with developing foliage; plant increases in size gradually
Begin gentle pruning to encourage bushier growth. Maintain warm temperatures above 60°F. Fertilize weekly with balanced fertilizer.
Vegetative Growth
Ongoing throughout growing seasonPlant develops full foliage coverage with characteristic red, crinkled leaves; branching increases
Pinch growing tips to promote lateral branching. Maintain consistent moisture and humidity. Apply balanced fertilizer every 2-3 weeks. Full sun promotes best color.
Maturation
Continuous with proper maintenancePlant reaches desired size with dense foliage display; leaf colors intensify with proper light and nutrition
Prune selectively to maintain shape. Continue regular feeding. Monitor for pests in humid conditions. Color is most vibrant in full sun.
Seasonal Dormancy
3-4 months in winterIn cooler months (indoors or in zone 9), growth slows; foliage may fade slightly in reduced light
Reduce watering and fertilizing. Maintain temperatures above 60°F. Provide brightest available light. Resume normal care in spring.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity, spray with water mist, apply neem oil or insecticidal soap every 7-10 days
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Remove with alcohol-soaked cotton swab, spray with neem oil or horticultural soap weekly
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Scrape off manually, apply horticultural oil or neem oil every 7-14 days
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Use yellow sticky traps, spray with neem oil weekly, improve air circulation
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Remove affected leaves, improve air circulation, avoid overhead watering, apply fungicide if severe
Uses
Tropical Landscape Accent
OrnamentalRed Hottest Acalypha serves as a striking focal point in tropical and subtropical gardens, adding bold color and texture to mixed borders and hedges. The intense red foliage contrasts beautifully with green-leafed companion plants. [source]
Container and Indoor Specimen
HouseholdExcellent for large containers on patios, decks, and as tropical houseplants. Can be moved indoors during winter in cooler climates, providing year-round ornamental interest. [source]
Cut Foliage Arrangements
CraftThe distinctive crinkled red leaves are prized by florists and crafters for fresh and dried flower arrangements, adding bold color and texture to compositions. [source]
Landscaping for Visual Interest
WildlifeWhile not a primary wildlife plant, the dense foliage provides shelter for beneficial insects and small creatures, and the inconspicuous flowers may attract pollinators. [source]
Harvest Tips
This is an ornamental foliage plant; harvest leaves selectively for arrangements or pruning. Pinch or cut stems to encourage bushier growth throughout the growing season. Best foliage color occurs with mature, full-grown leaves in strong light conditions.
Fun Facts
- 🌱 Acalypha wilkesiana is native to the South Pacific (Fiji and nearby islands) and is sometimes called 'Fijian Fire Plant' due to its intense coloration.
- 🌱 The 'Red Hottest' cultivar's leaf color intensifies with full sun exposure and cooler nighttime temperatures—plants grown in shade tend to produce greener leaves.
- 🌱 The name 'Acalypha' comes from Greek and refers to the plant's resemblance to nettles, though these plants are entirely unrelated botanically.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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