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Virginia threeseed mercury

Acalypha virginica ยท Euphorbiaceae

Virginia threeseed mercury (Acalypha virginica)
Photo: Robert H. Mohlenbrock. USDA SCS. 1991. Southern wetland flora: Field office guide to plant species. South National Technical Center, Fort Worth, TX. ยท Public domain ยท via Wikimedia Commons

Virginia threeseed mercury (Acalypha virginica) is a annual herbaceous plant in the Euphorbiaceae family. It is native to North America. USDA records it as hardy in zone 10 and warmer, down to about 33ยฐF.

At a glance

Typeforb-herb USDA
Lifecycleannual USDA
Native statusnative USDA
Mature height3 ft USDA
Lightpart-shade USDA
Water needmedium USDA
Growth raterapid USDA
Soil pH5.9โ€“7 USDA
BloomJune USDA
Flower colorRed USDA
Hardiness zones10 and warmer USDA
Guild layerground-cover Derived
Nursery availabilityNo Known Source 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 5.9 to 7 โ€” a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 10; 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 3 ft, making it a low to knee-height plant. It grows quickly, which matters when you are timing a planting around the layers above it.

Bloom period

USDA records a bloom period of June. The flower color USDA records is red. Bloom timing is how the Guild Builder overlaps flowering across a planting so something is in flower for as much of the season as possible.

Bloom period is a claim about when this plant flowers. It is deliberately not a pollinator rating โ€” no dataset we trust publishes one, so we do not make that claim. See Data & sources.

Role in a guild

Ground cover. In a layered planting this is the lowest layer โ€” it shades soil, holds moisture, and suppresses weeds. 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.

Build a guild around Virginia threeseed mercury โ†’

Tags

deciduousdrought-tolerantdeer-resistantnativefast-growingground-cover

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 ACVI, 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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