How to Grow Black Greasewood

Black Greasewood

Sarcobatus vermiculatus

shrub

Black greasewood is a hardy, salt-tolerant shrub native to arid and semi-arid regions of western North America. It thrives in harsh, saline soils where few other plants survive, making it valuable for rangeland restoration and wildlife habitat. The plant produces small, inconspicuous flowers and winged fruits, and is known for its ability to accumulate salt in its tissues.

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Example Black Greasewood timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Black Greasewood

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Black Greasewood

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Black Greasewood dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 8+ hours daily; essential for vigorous growth
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Water: Low water needs once established; drought tolerant. Occasional deep watering during establishment year. Does not tolerate poorly-drained or consistently wet soils.
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Spacing: 48 inches
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Days to maturity: 180-365 (slow-growing; reaches mature size over several years)
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Planting depth: Plant nursery-grown transplants at soil line; seeds require scarification and stratification

Soil

Type: Well-draining, sandy or gravelly soil; tolerates alkaline and saline soils exceptionally well
pH: 7.5-8.5 (highly alkaline tolerant)
Amendments:
No amendments needed; thrives in nutrient-poor soils Avoid organic matter addition in saline environments

Growing Zones

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Thrives in zones 4-8, extremely cold and drought hardy

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b

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Growth Stages

1

Seedling

8-12 weeks

Tiny seedlings emerge with narrow linear cotyledons; growth is slow and minimal first year

Keep soil consistently moist but not waterlogged; provide full sun; protect from competition; may not be visible above-ground for extended period

2

Establishment

1-2 years

Young plants develop deep root systems and minimal above-ground growth; sparse stems with small linear leaves emerge

Minimal supplemental water needed after first season; avoid disturbing root zone; full sun exposure critical; drought conditions actually improve long-term survival

3

Vegetative Growth

Ongoing

Mature shrub produces numerous jointed, spiny stems with reduced, scale-like leaves; compact, rounded form develops

Established plants need no fertilizer or supplemental water; salt accumulation in leaves is normal; pruning rarely needed

4

Flowering & Fruiting

3-4 months

Inconspicuous yellow-green flowers appear in late spring/early summer; small, winged fruits develop by mid-summer

No special care needed; flowers are wind-pollinated; fruits mature over summer months

5

Dormancy

4-6 months

Plant enters winter dormancy; foliage remains on plant but growth ceases; extreme cold tolerance allows survival in harsh conditions

No water or care needed; plant is fully self-sufficient; extremely hardy to cold and wind

Companion Planting

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Plant with:

Avoid planting near:

Water-loving plants (willows, cottonwoods) Acid-loving plants (blueberries, azaleas) Plants requiring consistent moisture

Common Pests

  • Rarely problematic; minimal pesticide intervention typically needed in natural settings; use neem oil or spinosad if necessary in nursery production

  • Monitor for infestations; prune affected branches; apply horticultural oil in late winter/early spring if widespread

  • Ensure excellent drainage; avoid supplemental irrigation in established plants; disease is generally not a concern in natural, arid conditions

Uses

🦋

Rangeland & Habitat Restoration

Wildlife

Black greasewood is widely planted in western rangelands to stabilize saline and alkali soils, prevent erosion, and provide wildlife habitat. It is a key species for restoring degraded rangelands, particularly in the Great Basin and intermountain regions. [source]

🦋

Wildlife Forage & Shelter

Wildlife

The plant provides emergency forage for livestock during drought and winter, though it is not highly palatable. It also offers cover and nesting habitat for sage grouse, rabbits, and other rangeland wildlife species. [source]

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Erosion Control & Soil Stabilization

Household

Black greasewood's deep root system and salt tolerance make it excellent for stabilizing banks, preventing erosion in saline soils, and reclaiming disturbed lands. It thrives where conventional vegetation cannot establish. [source]

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Traditional Plant Uses

Medicinal

Historically, native peoples used black greasewood for various medicinal purposes, though modern scientific evidence for its efficacy is limited. Some traditional preparations claimed to treat digestive issues and skin conditions. [source]

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Charcoal & Fuel

Craft

The dense wood of mature black greasewood plants was historically used to produce charcoal and served as a fuel source in arid regions where other wood was scarce. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Black greasewood is not typically harvested for culinary or medicinal use. Seeds can be collected in late summer/fall for propagation purposes. Allow fruits to fully mature and dry on the plant before collection. Store seeds in cool, dry conditions.

Fun Facts

  • 🌱 Black greasewood can accumulate salt concentrations in its leaves 20-30 times higher than in the surrounding soil, making it hyperaccumulative and useful for phytoremediation of saline contaminated sites.
  • 🌱 The plant's common name 'greasewood' comes from its resinous, waxy stems and leaves that were historically used as fuel for lamps and fires.
  • 🌱 Despite its harsh appearance, black greasewood plays a critical ecological role in the sagebrush steppe ecosystem, providing habitat for the threatened greater sage grouse and serving as an indicator species for saline soil conditions.

Gardening Terms

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