How to Grow Red Shrimp Plant
Red Shrimp Plant
Justicia brandegeeana
shrubThe red shrimp plant is a tropical ornamental shrub prized for its distinctive arching flower spikes that resemble red shrimp or prawns. Native to Mexico, it produces vibrant red bracts with small white flowers and thrives in warm, humid conditions. The plant is popular as a houseplant and in tropical gardens for its unique appearance and relatively easy care requirements.
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Example Red Shrimp Plant timeline · Pittsburgh, PA (Zone 6b)
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Plant Red Shrimp Plant
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 Shrimp Plant
Around Aug 15≈ 120 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Zones 10-11; grow indoors in cooler climates
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Establishment
2-4 weeksYoung plant with soft green stems and emerging leaves. Initial root development occurs
Keep soil consistently moist. Maintain warm temperatures (65-75°F). Provide bright, indirect light. Avoid direct sun which can scorch tender foliage
Vegetative Growth
4-8 weeksPlant develops bushy foliage with multiple stems and glossy green leaves. Stems become more woody
Pinch back growing tips to encourage branching and bushier growth. Feed monthly with balanced fertilizer. Maintain humidity and consistent moisture. Ensure good air circulation
Pre-flowering
2-4 weeksPlant reaches mature size with full canopy. Red bracts begin forming at stem tips
Switch to fertilizer higher in phosphorus to encourage flowering. Maintain 12+ hours of light daily. Ensure warm temperatures (70-80°F). Continue regular misting
Flowering
6-12 weeks or more with proper careDistinctive arching red flower spikes develop, resembling shrimp. Small white flowers emerge from beneath red bracts. Blooms last for weeks
Deadhead spent bracts to encourage continued blooming. Maintain consistent moisture and humidity. Avoid moving plant frequently. Continue light feeding with balanced or bloom-promoting fertilizer
Rest/Dormancy
2-3 monthsFlowering decreases, especially in winter. Growth slows. Plant conserves energy
Reduce watering slightly but keep soil from drying out. Lower fertilizer frequency to every 6-8 weeks. Maintain warm temperatures. Increase light exposure to combat short days. Can prune back in late winter to rejuvenate
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity and mist foliage regularly. Spray with neem oil or insecticidal soap every 7-10 days. Rinse leaves with water to physically remove mites
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Remove with cotton swab dipped in rubbing alcohol. Spray with neem oil or insecticidal soap. Isolate infested plant to prevent spread
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Use yellow sticky traps to monitor and catch adults. Spray with neem oil or horticultural soap every 7 days. Improve air circulation
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Spray with strong water stream to dislodge. Apply insecticidal soap or neem oil. Remove heavily infested leaves
Uses
Indoor Ornamental Plant
HouseholdRed shrimp plant is widely cultivated as an indoor houseplant for its striking tropical appearance and unique arching flower spikes. It adds vibrant color and exotic interest to indoor spaces, making it popular for homes, offices, and conservatories. [source]
Fresh Flower Arrangements
CraftThe distinctive red flower spikes are excellent for cut flower arrangements and floral designs. The blooms last several weeks in water and add unique texture and color to bouquets and displays. [source]
Pollinator Garden Plant
WildlifeThe flowers attract butterflies, hummingbirds, and other pollinators, making it valuable for wildlife gardens in tropical regions. The nectar-rich blooms provide food for beneficial insects. [source]
Traditional Medicine
MedicinalIn traditional Mexican medicine, Justicia species have been used for various remedies. Some cultures use the plant to support general wellness and vitality, though scientific studies on efficacy remain limited. [source]
Garnish and Edible Flowers
CulinaryWhile not commonly consumed, the small white flowers are edible and can be used as delicate garnishes for drinks and desserts in tropical cuisine. Always verify safety and pesticide-free growing before consuming flowers. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Red shrimp plants are ornamental and not harvested in the traditional sense. Deadhead spent flower bracts by removing them at the base of the stem to encourage continued blooming throughout the growing season. Cut stems can be used in floral arrangements when flowers are fully formed
Fun Facts
- 🌱 The red shrimp plant gets its common name from the distinctive arching flower spikes that closely resemble cooked red shrimp or prawns, complete with the curled appearance
- 🌱 The plant produces tiny white flowers that emerge from beneath the red bracts; the bracts are actually modified leaves, not the flowers themselves
- 🌱 Red shrimp plants are known for their ability to bloom almost continuously when provided with proper warmth, humidity, and light, potentially flowering year-round indoors
Gardening Terms
New to gardening? Learn about terms used in this guide:
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