Arrowroot (Maranta arundinacea)
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Plant Details & Care
Growth Category
Fast-growing tropical herb
Temperature Range
Prefers warm, humid temps around 20°C to 30°C °C
Light Requirement
Bright, indirect light; tolerates partial shade outdoors
Agro Ecology
Sub-humid to humid
Watering Frequency
Keep soil moist; water 2–3 times per week
Keep soil moist; water 2–3 times per week
Region
Best in warm, humid areas
Behavior
Grows clumping with broad, lance-shaped green leaves.
Produces underground rhizomes used for arrowroot starch.
Ornamental appeal is less striking than Calatheas/Marantas (prayer plants), but still valued for lush foliage.
Can spread steadily if planted in garden beds.
Produces underground rhizomes used for arrowroot starch.
Ornamental appeal is less striking than Calatheas/Marantas (prayer plants), but still valued for lush foliage.
Can spread steadily if planted in garden beds.
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Treatment
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PestsMay get aphids, spider mites, or root rot if overwatered
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DiseasesRoot rot if soil stays soggy; fungal leaf spots possible
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Treatment✅ Do:
Plant in pots, raised beds, or shaded gardens with good organic matter.
Provide light shade outdoors to protect from strong sun.
Harvest rhizomes after 10–12 months for arrowroot starch.
Mulch around the base to keep soil cool and moist.
❌ Don’t:
Don’t plant in heavy clay soils — roots rot easily.
Don’t let soil dry out completely — growth will be stunted.
Don’t over-fertilize with nitrogen — leads to leaves only, small rhizomes.