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Science · Plants, Natives & Crops

Arrowroot

True or West Indian arrowroot is grown for starch extracted from its underground rhizomes. It is adapted to warm, moist conditions and can tolerate partial shade; its management should not be confused with other crops also called arrowroot.

Maranta arundinacea L. · Tropical rhizomatous perennial grown for edible starch.

Profile

Origin
Tropical America, from Mexico to Brazil.
Family
Marantaceae.
Growth habit
Erect herbaceous perennial with underground rhizomes.
Propagation
Vegetative establishment using rhizome planting material.
Light
Partial shade is compatible with growth.

Water & soil context

Moisture (VWC)
No numeric volumetric water content sensor target is provided in the cited publications.
Salinity tolerance
No numeric crop-specific salinity target is provided in the cited publications.
Drought tolerance
The references emphasize moist growing conditions rather than establishing a quantified drought tolerance.

Illustrative monitoring-depth band

3–8 in

Editorial placement example, not a validated optimum or total rooting depth. Confirm the site's root distribution and soil horizons; multiple depths may be needed.

The NC State account gives a climatic precipitation range, not an irrigation requirement or a sensor target.

Problems to watch

  • Confirm Maranta identity; Canna, Curcuma and Tacca crops can also be called arrowroot.
  • Maintain suitable moisture during active growth.
  • NC State reports no significant insect or disease problems in its species account; this is not a guarantee of pest freedom.

Stress signs

  • The cited publications do not provide a reliable crop-specific list of water, salinity or nutrient-stress indicators.

Where you'll find it

  • Extracted food starch
  • Food thickening
  • Starch-based processed foods

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Published botanical and soil references are distinct from GroundWorx product guidance. Moisture thresholds and monitoring depths require site calibration; sources do not establish product performance or diagnose stress.