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Thermopsis rhombifolia montana

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Thermopsis rhombifolia montana

Mt. Thermopsis, Mt. Golden Pea, Mt. Goldenbanner, Mountain False Lupine

Community: Mountain

Brief Description

Showy yellow pea flowers attract winged creatures.

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  • Bright Yellow Accent
  • Soft Green Leaves
  • Spreads By Roots
  • Bumblebees Love It

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Availability: Temporarily sold out. New inventory is made available in the spring and fall of each year.

Price From: $0.00

Plant Description and Details

Roadsides host scattered specimens, but a concentrated patch of Mt. Thermopsis can be quite a winning sight. We raised a field for seed and saw first hand how the soft-textured, rounded leaves sprang up from their hearty 2-year-old roots thenburst into exuberant yellow pea blossoms. The pollinators were just as pleased as we were. Lumbering bumblebees, especially, spent hours opening the hinged pea flowers to reach the pollen.

Common Names Mt. Thermopsis, Mt. Golden Pea, Mt. Goldenbanner, Mountain False Lupine
Community Mountain
Drought Tolerant No
Native Range Valley meadows, mountain roadsides, WA east to MT, south to CO and NV.
Native States CO, ID, MT, NV, OR, UT, WA, WY
Hardiness Down to Zone 4
Exposure Sun - Part Shade
Soil Preference Well Drained
Placement Naturalized wildflower meadows, along driveways, in mass plantings.
Mature Height 2 - 4 ft.
Mature Width 24 in.
Group Spacing 12-24 in.
Blossom Color Yellow
Blooms Early Summer
Establishment Tips Water at planting and 3-4 times deeply the first summer.
Maintenance Tips Spreads slowly by roots. Place in a spot where a colony is desired or occasionally divide clumps.
Wildlife Pollinators
Wildlife Notes Forage, abundant large seeds.
Plants Symbol THRHM
Family Name Fabaceae
Lewis & Clark No
 

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