Barestem Biscuit Root, Pestle Parsnip

Lomatiumnudicaule

Family
Apiaceae (ay-pee-AY-see-ee)
Genus
Lomatium (loh-MAH-tee-um)
Species
nudicaule (new-dee-KAW-lee)
Synonym
Cogswellia nudicaulis
Sun Exposure
Sun to Partial Shade
Light Shade
Foliage
Deciduous
Herbaceous
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
Bloom Color
Bright Yellow
Bloom Time
Mid Spring
Other Details
Category
Perennials
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Propagation Methods
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

East Wenatchee, Washington

East Wenatchee Bench, Washington

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Gardener's Notes:

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neutral
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East Wenatchee, WA (Zone 6a) | February 2009 | neutral

I grew these from stratified seed in 2008, and all of the plants only put on only one leaf, then went dormant in June despite keeping the...Read More

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