Life Cycle
Perennial
Plant Characteristics
Yellow blooms
Growth Habit
Upright
Bloom Season
Late Spring
Flavour Profile
Ornamental
Suitable for
Outdoor
Seed Type
Non-GMO
Plant Type
Flowering Plant
Planting Season
Spring
Fruit Size
N/A
Plant Height
2–3 feet
Light Requirement
Full Sun
Water Needs
Moderate
Hardiness Zones
USDA Zones 3–7
Container Garden
No
Plant Spacing
12–18 inches
Planting Depth
¼ inch
Growing Conditions
Cool climate
Frequently Asked Questions
Can Thermopsis lanceolata create a lupine-like display in perennial borders?
Can Thermopsis lanceolata create a lupine-like display in perennial borders?
Yes. Its upright spikes of golden-yellow flowers resemble lupines, making it an attractive vertical accent in mixed perennial plantings.
Does Thermopsis lanceolata belong to the pea family?
Does Thermopsis lanceolata belong to the pea family?
Yes. It is a member of the Fabaceae (pea) family, which is reflected in its pea-shaped flowers and elongated seed pods.
Will the plant develop decorative seed pods after flowering?
Will the plant develop decorative seed pods after flowering?
Yes. Following bloom, it produces slender legume pods that add seasonal interest before releasing mature seeds.
Can Thermopsis lanceolata spread into larger clumps over time?
Can Thermopsis lanceolata spread into larger clumps over time?
Yes. Mature plants gradually expand through underground rhizomes, forming broader clumps in suitable growing conditions.
Does Thermopsis lanceolata keep its foliage after flowering?
Does Thermopsis lanceolata keep its foliage after flowering?
Yes. Its attractive green foliage generally remains through summer, continuing to provide texture after the flowers have faded.
Is Thermopsis lanceolata suitable for cooler climate gardens?
Is Thermopsis lanceolata suitable for cooler climate gardens?
Yes. It is a hardy perennial adapted to temperate regions and performs well in gardens with cool winters and sunny growing conditions.