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North America Native Plant

Low Silverbush

Low Silverbush: A Charming Native Groundcover for Water-Wise Gardens Meet the low silverbush (Argythamnia humilis var. laevis), a delightful little native plant that’s been quietly beautifying the American Southwest for ages. This unassuming perennial might not win any flashy flower contests, but it’s got character, resilience, and that special charm ...

Low Silverbush: A Charming Native Groundcover for Water-Wise Gardens

Meet the low silverbush (Argythamnia humilis var. laevis), a delightful little native plant that’s been quietly beautifying the American Southwest for ages. This unassuming perennial might not win any flashy flower contests, but it’s got character, resilience, and that special charm that only native plants can bring to your garden.

What Makes Low Silverbush Special?

Low silverbush is a true American native, naturally occurring across New Mexico, Oklahoma, and Texas. As a member of the spurge family, this hardy perennial has adapted beautifully to the challenging conditions of the Southwest, making it an excellent choice for gardeners looking to create sustainable, water-wise landscapes.

You might also encounter this plant listed under its synonyms Argythamnia laevis or Ditaxis laevis in older gardening references, but they’re all the same dependable little performer.

Garden Appeal and Landscape Role

Don’t let the name fool you – while low silverbush stays relatively compact, it brings subtle beauty to any native garden. Its silvery-green foliage creates a lovely textural contrast against bolder plants, and the tiny greenish flowers, while modest, add their own quiet charm during blooming season.

This versatile native works wonderfully as:

  • A groundcover in xerophytic and drought-tolerant gardens
  • An accent plant in rock gardens
  • Part of a native plant collection
  • A low-maintenance addition to naturalized landscapes

Growing Conditions and Care

Here’s where low silverbush really shines – it’s refreshingly low-maintenance! This tough little perennial thrives in USDA hardiness zones 7-10, perfectly matching its native range across the Southwest.

Light Requirements: Low silverbush prefers full sun but can tolerate partial shade, making it quite adaptable to different garden spots.

Soil Needs: Well-draining soil is essential. This plant has evolved in areas where water doesn’t stick around long, so soggy conditions are definitely not its friend.

Water Requirements: Once established, low silverbush is remarkably drought tolerant. During its first year, provide regular water to help it establish, then you can largely let nature take over.

Planting and Maintenance Tips

Getting low silverbush established in your garden is straightforward:

  • Plant in spring or fall when temperatures are moderate
  • Ensure excellent drainage – consider raised beds or slopes if your soil tends to stay wet
  • Water regularly during the first growing season, then reduce frequency
  • Occasional light pruning can help maintain shape, but it’s not necessary
  • This plant typically requires minimal fertilization – it’s adapted to lean soils

Wildlife and Pollinator Benefits

While low silverbush may seem modest, it likely provides valuable resources for small native pollinators and other beneficial insects. Native plants like this one have co-evolved with local wildlife, creating important ecological relationships that support biodiversity in your garden.

Is Low Silverbush Right for Your Garden?

Low silverbush is an excellent choice if you’re looking to create a sustainable, low-maintenance landscape that celebrates native plants. It’s particularly perfect for gardeners in its native range who want to reduce water usage while supporting local ecosystems.

Consider adding low silverbush to your garden if you:

  • Want to reduce landscape water usage
  • Appreciate subtle, natural beauty over flashy displays
  • Are creating a native plant garden
  • Need a reliable groundcover for challenging, dry sites
  • Want to support local wildlife and pollinators

This charming native proves that sometimes the most valuable garden plants are the quiet, dependable ones that ask for little but give back so much. Low silverbush might just become your new favorite unsung garden hero!

Low Silverbush

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Euphorbiales

Family

Euphorbiaceae Juss. - Spurge family

Genus

Argythamnia P. Br. - silverbush

Species

Argythamnia humilis (Engelm. & A. Gray) Müll. Arg. - low silverbush

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA