Carolina lupine is an upright, clump-forming perennial which is native to the Carolinas and Georgia. Typically grows 0,90-1,20 m (3-4') tall. Features erect, dense, terminal, spike-like racemes of yellow, lupine-like flowers which bloom in July. Compound, trifoliate, grayish-green foliage (oval leaflets to 8 cm (3") long). Seed pods are villous (having long, shaggy hairs), hence the species name. Thermopsis is often commonly called false lupine because of its similarity to the true lupines.
No serious insect or disease problems.
Used for Wildflower gardens, meadows, borders or cutting gardens.
Easily grown in average, dry to medium, well-drained soils in full sun. Good tolerance to summer heat and drought. Difficult to transplant because of long tap roots.
Information source: www.missouribotanicalgarden.org.
Genus - Thermopsis
Species - caroliniana villosa
Common name - Carolina Lupine
Pre-Treatment - Required
Hardiness zones - 4 - 9
Height - 3'-5' / 0.90 - 1.5 m
Spread - 2'-3' / 0.60 - 1 m
Plant type - Perennial
Vegetation type - Deciduous
Exposure - Full sun
Growth rate - Fast
Soil PH - Acidic, Neutral, Alkaline
Soil type - Loam, Sand, Well Drained
Water requirements - Dry to medium
Landscape uses - Wildflower gardens, meadows, borders or cutting gardens.
Bloom season - July
Leaf / Flower color - Green / Yellow
|Germination||The details below are if sown without the pretreatment.|
The germination rate could be higher if short (28 days) cold and moist startification provided.
The germination with no pretreatment:
1. Presoak seeds for 12 hours and plant immediately. Choose your site. Lupine likes full sun to partial shade, and will tolerate dry or moist sites, although the soil should have good drainage. Lupine prefers poor quality or sandy soil, and it is a good flower to plant in that troublesome corner of your garden where nothing else will grow.
2. Decide when you want to plant. In nature, lupine drop their seeds in the fall, and the seeds need a period of cold in order to germinate in the spring, so the easiest and best way to grow lupine is to plant the seeds in the fall. You may also plant lupine seeds in the spring, but it will require a bit more work.
3. To plant lupine in the fall, prepare the bed by removing any weeds and loosening the soil with a metal garden rake. Bury the seeds under 3-6 mm (1/4-1/8") of soil, and water thoroughly. The lupine will sprout the following spring.
4. To plant lupine in the spring, you will need to simulate winter, so wrap the lupine seeds in a damp paper towel and store them in a loosely closed plastic bag in the refrigerator for seven to ten days. Prepare the bed and sow the lupine seeds in your garden in the early spring, after the danger of frost has passed. The seeds will germinate in about a week.