North America Native Plant

Double Twinpod

Botanical name: Physaria brassicoides

USDA symbol: PHBR5

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Double Twinpod: A Hidden Gem for Prairie-Style Gardens If you’re looking for a tough, drought-tolerant native that brings early spring color to your garden, meet the double twinpod (Physaria brassicoides). This unassuming little perennial might not win any height contests, but what it lacks in stature, it makes up for ...

Double Twinpod: A Hidden Gem for Prairie-Style Gardens

If you’re looking for a tough, drought-tolerant native that brings early spring color to your garden, meet the double twinpod (Physaria brassicoides). This unassuming little perennial might not win any height contests, but what it lacks in stature, it makes up for in resilience and charm.

What is Double Twinpod?

Double twinpod is a native perennial forb that belongs to the mustard family. Unlike woody shrubs or trees, this herbaceous plant dies back to the ground each winter and re-emerges from its roots each spring. It’s perfectly adapted to life on the Great Plains, where harsh winters and scorching summers separate the plant survivors from the quitters.

Where Does It Call Home?

This prairie native has made itself at home across the northern Great Plains, naturally occurring in Montana, Nebraska, North Dakota, South Dakota, and Wyoming. It’s a true child of the American heartland, evolved to thrive in the challenging conditions that define this region.

Why Plant Double Twinpod in Your Garden?

There are several compelling reasons to consider adding this native to your landscape:

  • Early pollinator support: Double twinpod blooms in early spring when pollinators are desperately seeking nectar sources
  • Drought tolerance: Once established, it laughs in the face of summer heat and dry spells
  • Low maintenance: This is definitely a plant it and forget it kind of perennial
  • Native credentials: Supporting local ecosystems while reducing your garden’s environmental impact
  • Unique texture: The silvery-green foliage adds interesting color variation to plant combinations

What Does It Look Like?

Double twinpod forms low, spreading rosettes of silvery-green leaves that hug the ground. In spring, it sends up clusters of small, bright yellow flowers that are typical of the mustard family – four petals arranged in a cross shape. The plant stays quite compact, making it perfect for tucking into rock gardens or using as a ground cover in prairie-style plantings.

Perfect Garden Situations

This adaptable native shines in several garden styles:

  • Prairie gardens: Combines beautifully with native grasses and wildflowers
  • Rock gardens: Its low profile and drought tolerance make it ideal for rocky, well-drained spots
  • Xeriscaping: Perfect for water-wise landscapes
  • Native plant gardens: An authentic choice for supporting local ecosystems

Growing Conditions and Care

Double twinpod is refreshingly easy to please:

  • Sunlight: Full sun is best – this prairie native loves bright, open conditions
  • Soil: Well-drained soil is crucial; it tolerates alkaline conditions well
  • Water: Drought tolerant once established, but appreciates occasional water during extreme dry spells
  • Hardiness: Hardy in USDA zones 3-7, making it suitable for most northern and central regions

Planting and Establishment Tips

Getting double twinpod off to a good start is straightforward:

  • Plant in spring or fall when temperatures are moderate
  • Ensure excellent drainage – soggy soil is this plant’s worst enemy
  • Water regularly the first year to help establish roots
  • Once established, step back and let it do its thing
  • Avoid fertilizing – rich soils can actually make the plant less hardy

Is Double Twinpod Right for Your Garden?

This native gem is perfect for gardeners who want to support local ecosystems while enjoying a low-maintenance landscape. It’s especially valuable for those dealing with challenging growing conditions like alkaline soils, hot summers, or limited water availability. While it may not provide the showstopping drama of some garden favorites, its quiet beauty and ecological benefits make it a worthy addition to any native plant enthusiast’s collection.

If you’re creating a prairie-style garden or simply want to add more native plants to your landscape, double twinpod deserves serious consideration. It’s proof that sometimes the most valuable garden plants are the ones that work hard behind the scenes, supporting pollinators and thriving with minimal fuss.

Double Twinpod

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Capparales

Family

Brassicaceae Burnett - Mustard family

Genus

Physaria (Nutt. ex Torr. & A. Gray) A. Gray - twinpod

Species

Physaria brassicoides Rydb. - double twinpod

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