Regenesis Kauaʻi

Taro

Colocasia esculenta

Corms and leaves, always cooked. Staple root crop with wetland and upland varieties. Requires consistent moisture. Full growing guide →

WetModerate

Breadfruit

Artocarpus altilis

Starchy fruit. High-yield long-term staple tree. Full growing guide →

WetModerate

Coconut

Cocos nucifera

Water, meat, oil, fiber. Salt-tolerant multipurpose palm. Coconut rhinoceros beetle is now on Kauaʻi; inspect crowns regularly (see Challenges page). Full growing guide →

WetModerateDry

Sweet Potato

Ipomoea batatas

Tubers and leaves. Drought-tolerant once established. One of the best multipurpose ground covers on Kauaʻi: spreads fast, suppresses weeds, protects soil, and yields greens and tubers. Full growing guide →

WetModerateDry

Banana

Musa spp.

Fruit and biomass. Fast-growing; useful as temporary windbreak. Full growing guide →

WetModerate

Plantain

Musa spp. (cooking types)

Cooking bananas. Starchy fruit. Fast biomass and food. Full growing guide →

WetModerate

Cassava (Yuca)

Manihot esculenta

Starchy roots. Must be peeled and cooked properly before eating. Drought-tolerant once established. Full growing guide →

ModerateDry

Yacon

Smallanthus sonchifolius

Sweet, low-calorie tubers. Easy to grow in milder microclimates. Full growing guide →

Moderate

Sugarcane

Saccharum officinarum

Cane for juice, biomass, and windbreak. Fast-growing. Full growing guide →

WetModerateDry

Pigeon Pea

Cajanus cajan

Edible pods. Strong nitrogen fixer. Excellent chop-and-drop. Full growing guide →

ModerateDry

Gliricidia

Gliricidia sepium

Biomass and nitrogen fixation. Fast-growing support tree; coppice regularly. Rated Low Risk by the Hawaiʻi weed risk assessment, though it has naturalized in pastures on Hawaiʻi Island, so keep it cut back before it sets seed. Full growing guide →

ModerateDry

Ice Cream Bean

Inga edulis

Edible pods. Nitrogen fixer and shade. Not known to be naturalized in Hawaiʻi, but its weed-risk score is in the uncertain range; avoid planting near native forest. Full growing guide →

WetModerate

Perennial Peanut

Arachis pintoi

Low-growing nitrogen-fixing living mulch. Excellent between trees and in pathways. Persistent and low-maintenance once established. Full growing guide →

WetModerate

Okinawa Spinach

Gynura bicolor

Reliable perennial green. Harvest frequently. Spreads well as living mulch in partial shade under fruit trees. Full growing guide →

WetModerate

Longevity Spinach

Gynura procumbens

Trailing edible perennial. Similar in habit to Okinawa spinach and useful as a living mulch in partial shade. Full growing guide →

WetModerate

Sissoo Spinach (Brazilian Spinach)

Alternanthera sissoo

Low, spreading edible cover. Tolerates a range of conditions, fills gaps quickly in partial shade, and roots easily from cuttings. Full growing guide →

WetModerate

Malabar Spinach

Basella alba

Heat-loving edible vine. Can sprawl as a temporary cover; manage it so it doesn’t climb young trees. Full growing guide →

WetModerate

Chaya

Cnidoscolus aconitifolius

Nutritious leaves. Always cook before eating. Full growing guide →

ModerateDry

Katuk

Sauropus androgynus

Leaves and tips. Shade-tolerant. Full growing guide →

WetModerate

Gotu Kola

Centella asiatica

Low creeping edible/medicinal cover. Prefers moist, partially shaded spots. Spreads by runners. Useful under trees on wetter sites. Full growing guide →

Wet

New Zealand Spinach

Tetragonia tetragonioides

Spreading edible green that tolerates heat and coastal conditions. Good temporary or seasonal cover on drier sites. Full growing guide →

ModerateDry

Pineapple (as understory)

Ananas comosus

Not a full carpet, but useful in patches under higher canopy on drier or well-drained sites. Provides fruit and some ground shading. Full growing guide →

ModerateDry

Moringa

Moringa oleifera

Leaves and pods. Fast-growing and drought-tolerant once established. Full growing guide →

ModerateDry

Avocado

Persea americana

Select varieties suited to elevation and rainfall. Full growing guide →

WetModerate

Papaya

Carica papaya

Fast-yielding. Replace periodically. Full growing guide →

WetModerateDry

Jackfruit

Artocarpus heterophyllus

Large fruit. Starchy when young. Full growing guide →

WetModerate

Mountain Apple

Syzygium malaccense

Productive fruit tree for wetter areas. Full growing guide →

Wet

Passion Fruit

Passiflora edulis

Vigorous vine. Needs support. Full growing guide →

WetModerate

Starfruit

Averrhoa carambola

Productive in suitable microclimates. Full growing guide →

WetModerate

Lychee

Litchi chinensis

Select varieties for local conditions. Full growing guide →

Moderate

Ginger

Zingiber officinale

Rhizomes. Shade-tolerant understory. Culinary and medicinal. Full growing guide →

WetModerate

Turmeric

Curcuma longa

Rhizomes. Shade-tolerant. Culinary and medicinal. Full growing guide →

WetModerate

Kava

Piper methysticum

Shrub grown for its roots, which make a relaxing drink. Prefers moist, shaded conditions. Full growing guide →

Wet

Candlenut

Aleurites moluccanus

Nuts (roasted only), oil, and shade. Full growing guide →

WetModerate

Noni

Morinda citrifolia

Very hardy small tree. Fruit used for food and medicine. Full growing guide →

WetModerateDry

Comfrey (Bocking 14)

Symphytum × uplandicum

Deep-rooted nutrient accumulator for chop-and-drop mulch. Use the sterile Bocking 14 cultivar to limit spreading. Best as a patch rather than unrestricted cover. Full growing guide →

WetModerate

Vetiver

Chrysopogon zizanioides

Deep-rooted grass planted in contour hedgerows for erosion control and slope stabilization. Use sterile, non-seeding cultivars. Full growing guide →

WetModerateDry

Lemongrass

Cymbopogon citratus

Culinary and pest-repellent. Full growing guide →

WetModerateDry

Aloe

Aloe vera

Succulent for medicinal gel and drought-tolerant planting. Easy to propagate from pups. Prefers well-drained soil. Full growing guide →

ModerateDry

Bamboo (Building & Tools)

Various clumping species

Structural and craft material. Clumping types only. Top for building: Dendrocalamus asper, Guadua angustifolia, Bambusa oldhamii, Bambusa ‘Hirose’, Dendrocalamus brandisii / Gigantochloa. For tools/handles: Dendrocalamus strictus, lower sections of oldhamii or Hirose. Avoid Bambusa vulgaris for permanent building (weak walls, high starch, beetle issues). Source from reputable local growers. Full growing guide →

WetModerate

Jiaogulan (Sweet Tea Vine)

Gynostemma pentaphyllum

Medicinal climbing vine in the cucumber family, traditionally used as a tea. Prefers partial shade, consistent moisture, and a trellis or light canopy to climb. Easy from cuttings. Use leaves only; research traditional preparation before regular use. Full growing guide →

WetModerate

Cacao

Theobroma cacao

Pods with sweet pulp and beans for chocolate. Understory tree that wants shade, shelter from wind and steady moisture; grows well beneath gliricidia or ice cream bean. Bears in about 3–5 years. Full growing guide →

WetModerate

Maya Nut (Ramón, Breadnut)

Brosimum alicastrum

Tall canopy tree whose seeds are roasted, boiled or ground into flour. Rated “Evaluate” by Plant Pono: not known to spread in Hawaiʻi yet, but check before planting. Full growing guide →

WetModerate

Mamey Sapote

Pouteria sapota

Large canopy tree with sweet, salmon-colored fruit. Slow to bear but long-lived. Rated low risk (Pono Plant). Full growing guide →

Moderate

Black Sapote

Diospyros nigra

“Chocolate pudding fruit,” eaten soft-ripe. Large, handsome canopy tree for warm lowland sites. Full growing guide →

WetModerate

Macadamia

Macadamia integrifolia

Long-lived nut tree and a proven Hawaiʻi crop. Buy grafted trees; protect young trees from wind. Full growing guide →

WetModerate

Rambutan

Nephelium lappaceum

Lychee relative with clusters of hairy red fruit. Needs a warm, wet, sheltered lowland site. Full growing guide →

Wet

Mangosteen

Garcinia mangostana

Prized fruit, slow to bear (often 8+ years). Needs warmth, high humidity, rich soil and shelter. Full growing guide →

Wet

Abiu

Pouteria caimito

Small tree with sweet, custardy yellow fruit; bears in just a few years. Rated low risk (Pono Plant). Full growing guide →

WetModerate

Jaboticaba

Plinia cauliflora

Grape-like fruit grows straight off the trunk. Compact and slow; good for small yards with regular water. Rated low risk (Pono Plant). Full growing guide →

WetModerate

Canistel (Egg Fruit)

Pouteria campechiana

Tough, drought-tolerant tree with rich, egg-yolk-textured fruit. Good for leeward yards. Rated low risk (Pono Plant). Full growing guide →

ModerateDry

Rollinia (Biribá)

Annona mucosa

Fast-growing tree bearing large, lemony custard fruit within a few years. Fruit is very perishable; eat fresh. Full growing guide →

WetModerate

Soursop

Annona muricata

Large spiny fruit with tangy white pulp for juices and desserts, borne on lower branches. Warm lowland tree. Rated low risk (Pono Plant). Full growing guide →

WetModerate

Cherimoya

Annona cherimola

Custard apple for cooler upland sites; hand-pollinating flowers improves fruit set. Rated low risk (Pono Plant). Full growing guide →

Moderate

Sesbania

Sesbania grandiflora

Fast nitrogen-fixing nurse tree with edible flowers; cut back for mulch. Some Sesbania species are invasive elsewhere, so check Plant Pono for the species you buy. Full growing guide →

ModerateDry

Sunn Hemp ‘Tropic Sun’

Crotalaria juncea

Fast cover crop and green manure; cut before it sets seed. Use the ‘Tropic Sun’ variety developed in Hawaiʻi. Rated “Evaluate” by Plant Pono. Full growing guide →

WetModerateDry

Vanilla

Vanilla planifolia

Climbing orchid trained up gliricidia in light shade. Flowers must be hand-pollinated; pods are cured for months. Rated low risk (Pono Plant). Full growing guide →

WetModerate

Black Pepper

Piper nigrum

Climbing vine for a support tree such as gliricidia. Needs warmth, humidity and shade. (Not the invasive false kava, Piper auritum.) Full growing guide →

Wet

Sacha Inchi

Plukenetia volubilis

Vigorous vine from the Peruvian Amazon grown for star-shaped pods of oil-rich seeds. Seeds must be roasted before eating. Full growing guide →

WetModerate

Chayote

Sechium edule

Long-lived vine with squash-like fruit, tender shoots and edible roots. Give it a strong trellis; best in cooler upland sites. Full growing guide →

WetModerate

Coffee

Coffea arabica

Shade-loving understory shrub with a long history on Kauaʻi; grows well beneath taller fruit trees. Caution: rated High Risk by Plant Pono. Keep it in a managed, contained planting, pick up fallen cherries, and don’t let it spread into wild areas. Full growing guide →

WetModerate

Coleus

Plectranthus scutellarioides

Colorful, fast-filling understory groundcover for shady spots. Caution: rated High Risk by Plant Pono and has gone wild on several islands. Grow it in pots or a contained bed and trim it before it spreads. Full growing guide →

WetModerate

Durian

Durio zibethinus

Large canopy tree with the famously pungent, custardy “king of fruits.” Needs deep soil, steady rain, warmth and wind shelter. Seedlings take 7–10 years to fruit; grafted trees are faster. Rated low risk (Pono) by Plant Pono. Full growing guide →

Wet

Roselle

Hibiscus sabdariffa

Fast, shrubby hibiscus grown as an annual. The tart red calyxes make tea, jam, and cordial, and the young leaves are a sour cooking green. Plant from seed in spring; it flowers as days shorten in fall. Prefers sun and good drainage. Not yet assessed by Plant Pono. Full growing guide →

ModerateDry

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Plants to Avoid on Kauaʻi

These plants show up in permaculture books and tropical plant lists, but in Hawaiʻi they spread aggressively into farmland and native forest. Please don’t plant them, and remove young plants where you can. Check any unfamiliar species at plantpono.org before planting.

  • Leucaena (Leucaena leucocephala) — Considered invasive in Hawaiʻi; forms dense thickets and leaves a long-lived seed bank. Use pigeon pea or gliricidia for nitrogen and biomass instead.
  • Wedelia / creeping daisy (Sphagneticola trilobata) — Smothering invasive ground cover. Use sweet potato, perennial peanut, or sissoo instead.
  • Sensitive plant / hilahila (Mimosa pudica) — Spiny, naturalized weed of lawns and pastures. Use perennial peanut for a low nitrogen-fixing cover instead.
  • Surinam cherry (Eugenia uniflora) — Naturalized on Kauaʻi; birds spread the seeds into forests. Plant Pono recommends avoiding it.
  • Neem (Azadirachta indica) — Rated High Risk for invasiveness in Hawaiʻi. If you want its pest-repellent oil, buy the oil rather than planting the tree.
  • Tithonia / Mexican sunflower (Tithonia diversifolia) — Popular “chop-and-drop” plant, but rated High Risk and naturalized on Kauaʻi. Use pigeon pea or comfrey (Bocking 14) instead.
  • Strawberry guava, albizia — See the Challenges page.

Ground Covers

Ground covers are one of the highest-leverage layers in a Kauaʻi food forest. They protect soil from rain impact and sun, suppress weeds, retain moisture, and can provide food or fertility while longer-term trees establish.

Why they matter on Kauaʻi

Practical approaches

Filter the list above by “Ground covers.” Start with low-risk, edible, or nitrogen-fixing covers (sweet potato, perennial peanut, Okinawa spinach, sissoo, gotu kola). Cover one 10×10 or 20×20 ft area thoroughly before expanding; a well-covered starter patch beats sparse planting across a large area.

Free guide: The 7-Layer Island Backyard

A 20-page guide to a Hawaiʻi garden that looks like a forest, free by email.