Leren

Herbaceous

Leren

Calathea allouia

Also known as: Guinea arrowroot, Topi tambu, Sweet corn root

HerbaceousRoot Marantaceae EdibleGround CoverOrnamental
Hardiness Zone
9-11
Ideal Temp
65–90°F
Survives Down To
35°F
Life Cycle
Perennial

Calathea allouia is the shade-loving arrowroot relative that makes crunchy, juicy corms with a mild sweet flavor—think water chestnut that went tropical. Leaves are big and ornamental; no full-sun machismo. subtropical and tropical Americas: Best under partial shade of fruit trees; protect from hard freezes in cooler pockets. Loves humidity; mulch hard. ☀️💧 Sun and Water Requirements: - Part to full shade in hot climates; avoid blasting midday sun on leaves. - Rich, moist, well-drained soil high in organic matter; never let pots sit saucer-wet. ✂️ Propagation: - Divide clumps when dormant or during active growth with care to buds on rhizomes. - Harvest corms and replant smaller offsets; label clones if you maintain named lines. 🌾 Harvest / Best Use Timing: - Lift corms when tops begin to senesce or when size is right for the recipe—boiled, pickled, or sliced like water chestnut analogs. - Replant the smallest offsets immediately so the clump regenerates.

Good Neighbors
  • Banana
  • Taro
  • Canna Lily
Cautions
  • Full blasting sun and drought
  • Waterlogged anaerobic muck
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Nematodes
Meloidogyne spp.