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western Labrador tea

Ledum glandulosum · Ericaceae

western Labrador tea (Ledum glandulosum)
Photo: (c) Daniel Kennedy, some rights reserved (CC BY) · CC BY · via iNaturalist

western Labrador tea (Ledum glandulosum) is a perennial shrub in the Ericaceae family. It is native to North America. USDA records it as hardy in zone 4 and warmer, down to about -28°F.

At a glance

Typeshrub USDA
Lifecycleperennial USDA
Native statusnative USDA
Mature height4.5 ft USDA
Lightshade USDA
Water needmedium USDA
Growth rateslow USDA
Soil pH4.6–7 USDA
BloomMarch–April USDA
Flower colorWhite USDA
Hardiness zones4 and warmer USDA
Guild layershrub Derived
Nursery availabilityRoutinely Available USDA

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

Growing conditions

It tolerates full shade. USDA rates it as having moderate water needs. Its drought tolerance is rated none — it needs reliable moisture. It handles periodically wet ground (USDA rates its anaerobic tolerance medium). It is recorded on soils from pH 4.6 to 7 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 4.

Size and growth

At maturity it reaches about 4.5 ft, making it roughly waist to chest height. It grows slowly.

Bloom period

USDA records a bloom period of March through April. Flowers are white.

A flowering date, not a pollinator rating.

Foliage, flower and season

Summer foliage is yellow-green, medium in texture. Its flowers are conspicuous. Its active growth period is spring and summer. USDA rates its lifespan as long.

What the site needs to provide

USDA records it across sites receiving 14 to 50 inches of annual precipitation. The low end of that band is genuinely arid, so it has a wide tolerance for dry country. It needs at least 120 frost-free days to finish its season. It roots to at least 18 inches. Fertility requirement: medium.

Propagating it

Propagate it from seed, bare root and container stock. Seed needs cold stratification — a period of moist chilling — before it will germinate, so sow in autumn or chill it artificially before a spring sowing. Its seed spreads at a slow rate. It does not spread vegetatively, so it will stay where you put it.

Resilience and wildlife

Its fire tolerance is rated medium, and it can resprout after damage. Its growth form is recorded as multiple stem.

Role in a guild

Shrub layer. In a layered planting this is woody mid-level structure between the understory and the ground. The layer is derived by a fixed rule from growth habit and mature height.

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Tags

evergreenwet-tolerantclay-tolerantnativeshade-tolerantslow-growing

Related plants

Others in Ledum

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol LEGL, 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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