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bud sagebrush

Picrothamnus desertorum · Asteraceae

bud sagebrush (Picrothamnus desertorum)
Photo: (c) Tim Messick, some rights reserved (CC BY) · CC BY · via iNaturalist

bud sagebrush (Picrothamnus desertorum) is a perennial shrub in the Asteraceae family. It is native to North America. USDA records it as hardy in zone 2 and warmer, down to about -43°F.

At a glance

Typeshrub USDA
Lifecycleperennial USDA
Native statusnative USDA
Mature height2 ft USDA
Lightfull-sun USDA
Water needlow USDA
Growth rateslow USDA
Soil pH6–8.5 USDA
BloomApril–May USDA
Flower colorYellow USDA
Hardiness zones2 and warmer USDA
Guild layershrub Derived
Nursery availabilityNo Known Source 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 needs full sun. USDA rates it as having low water needs once established. Its drought tolerance is rated high. It will not tolerate waterlogged soil — USDA rates its anaerobic tolerance as none. It is recorded on soils from pH 6 to 8.5 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 2.

Size and growth

At maturity it reaches about 2 ft, making it about knee height. It grows slowly.

Bloom period

USDA records a bloom period of April through May. Flowers are yellow.

A flowering date, not a pollinator rating.

Foliage, flower and season

Summer foliage is gray-green, coarse in texture. Its flowers are conspicuous. Its active growth period is spring. USDA rates its lifespan as long.

What the site needs to provide

USDA records it across sites receiving 6 to 10 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 90 frost-free days to finish its season. It roots to at least 20 inches. Fertility requirement: low — no feeding needed on ordinary garden soil.

Propagating it

Propagate it from seed, bare root and container stock. USDA records no cold-stratification requirement, so seed should germinate without a chilling period. Its seed spreads at a slow rate. It does not spread vegetatively, so it will stay where you put it.

Resilience and wildlife

Browsing animals find it moderately palatable, so expect deer and rabbits to take an interest. Its fire tolerance is rated low. 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

deciduousdrought-tolerantsalt-toleranthedgeclay-tolerantsandy-soilnativefull-sunslow-growing

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 PIDE4, 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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