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Hawai'ian cotton

Gossypium tomentosum ยท Malvaceae

Hawai'ian cotton (Gossypium tomentosum)
Photo: Forest & Kim Starr ยท CC BY ยท via Wikimedia Commons

Hawai'ian cotton (Gossypium tomentosum) is a perennial shrub in the Malvaceae family. It is native to North America. USDA records it as hardy in zone 12 and warmer, down to about 50ยฐF.

At a glance

Typeshrub USDA
Lifecycleperennial USDA
Native statusnative USDA
Mature height6 ft USDA
Lightpart-shade USDA
Water needmedium USDA
Growth ratemoderate USDA
Soil pH6โ€“7 USDA
Flower colorYellow USDA
Hardiness zones12 and warmer USDA
Guild layershrub Derived
Nursery availabilityRoutinely Available USDA

USDA quoted from the USDA PLANTS database ยท Derived computed by a fixed rule from those columns. No value on this page is estimated.

Growing conditions

It grows in partial shade. USDA rates it as having moderate water needs. It is recorded on soils from pH 6 to 7 โ€” a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 12; USDA publishes no warm-end limit, so gardeners in warmer zones should check local heat tolerance separately.

Size and growth

At maturity it reaches about 6 ft, making it a low to knee-height plant. It grows at a moderate rate, which matters when you are timing a planting around the layers above it.

Role in a guild

Shrub layer. In a layered planting this is woody mid-level structure between the understory and the ground. We derive the layer from the plant's growth habit and mature height using a fixed rule, so the same inputs always produce the same layer.

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Tags

evergreendrought-toleranthedgeclay-tolerantsandy-soilspreadingnative

Related plants

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol GOTO, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.

Read our full data sources and methodology.

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