North America Native Plant

Hall’s Biscuitroot

Botanical name: Lomatium hallii

USDA symbol: LOHA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Lomatium nelsonianum J.F. Macbr. (LONE6)   

Hall’s Biscuitroot: A Hidden Gem for Pacific Northwest Native Gardens If you’re looking to add authentic Pacific Northwest character to your garden, Hall’s biscuitroot (Lomatium hallii) might just be the native treasure you’ve been seeking. This unassuming perennial forb brings both ecological value and subtle beauty to the right garden ...

Hall’s Biscuitroot: A Hidden Gem for Pacific Northwest Native Gardens

If you’re looking to add authentic Pacific Northwest character to your garden, Hall’s biscuitroot (Lomatium hallii) might just be the native treasure you’ve been seeking. This unassuming perennial forb brings both ecological value and subtle beauty to the right garden setting, though it’s definitely not your typical garden center find.

What is Hall’s Biscuitroot?

Hall’s biscuitroot is a native perennial herb that belongs to the carrot family. Don’t let the biscuitroot name fool you – this isn’t something you’ll be baking with! The name comes from the plant’s starchy, edible root that Indigenous peoples traditionally used as food. As a forb, this plant stays relatively low to the ground without any woody stems, putting all its energy into those interesting feathery leaves and delicate flower clusters.

You might also encounter this plant listed under its synonym, Lomatium nelsonianum, in older botanical references, but Lomatium hallii is the accepted name today.

Where Does Hall’s Biscuitroot Call Home?

This Pacific Northwest native has a fairly limited natural range, growing wild in Oregon and Washington. In the wild, you’ll typically find it thriving on dry, rocky slopes and open areas where many other plants struggle to establish themselves.

Why Consider Hall’s Biscuitroot for Your Garden?

While Hall’s biscuitroot may not win any flashy flower contests, it offers several compelling reasons to include it in the right garden:

  • True native authenticity: Perfect for gardeners committed to using only local native species
  • Pollinator magnet: The small white to cream-colored umbrella-shaped flower clusters attract native bees and beneficial insects
  • Drought champion: Once established, this plant thrives with minimal water
  • Unique texture: The finely divided, feathery foliage adds interesting texture contrast to garden beds
  • Low maintenance: Requires virtually no care once established in suitable conditions

Garden Roles and Landscape Uses

Hall’s biscuitroot works best as a specialist plant rather than a garden workhorse. Consider it for:

  • Native plant gardens: Essential for authentic Pacific Northwest plant communities
  • Rock gardens: Perfect for tucking between rocks where its natural habitat preferences shine
  • Xeriscape designs: Excellent choice for water-wise landscaping
  • Naturalized areas: Ideal for letting parts of your landscape go native

Growing Conditions and Care

Success with Hall’s biscuitroot comes down to mimicking its natural habitat. This plant is happiest when you give it:

  • Excellent drainage: Rocky, sandy, or gravelly soils work best
  • Full sun to partial shade: Prefers bright conditions but tolerates some shade
  • Minimal water: Drought-tolerant once established; overwatering can be fatal
  • USDA Zones 7-9: Best suited for Pacific Northwest climate conditions

Planting and Propagation Tips

Here’s where Hall’s biscuitroot gets a bit challenging – and why you won’t find it at your local garden center. This plant develops a deep taproot that makes transplanting extremely difficult. Your best bet is starting from seed, ideally sown directly where you want the plant to grow.

Seeds typically need a cold stratification period and may take time to germinate. Patience is definitely required with this native! Once established, however, the plant can live for many years with minimal intervention.

Is Hall’s Biscuitroot Right for Your Garden?

This native charmer isn’t for every gardener or every garden. It’s best suited for:

  • Dedicated native plant enthusiasts
  • Gardeners with well-draining, rocky soils
  • Those creating habitat for native pollinators
  • Patient gardeners who enjoy growing plants from seed

If you’re looking for instant gratification or have heavy clay soil, you might want to consider other Pacific Northwest natives that are easier to establish.

The Bottom Line

Hall’s biscuitroot represents native gardening at its most authentic – and most challenging. While it won’t give you the showy blooms of cultivated perennials, it offers something arguably more valuable: a genuine piece of Pacific Northwest ecology in your own backyard. If you’re up for the challenge of growing this specialized native, you’ll be rewarded with a unique plant that supports local wildlife while connecting your garden to the natural heritage of the region.

Just remember: start with seeds, ensure excellent drainage, and embrace the slow, steady beauty of a plant that’s perfectly adapted to its home ground.

Hall’s Biscuitroot

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

Apiales

Family

Apiaceae Lindl. - Carrot family

Genus

Lomatium Raf. - desertparsley

Species

Lomatium hallii (S. Watson) J.M. Coult. & Rose - Hall's biscuitroot

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