Lupine’s dense spires of bright blue flowers signal the coming of spring. Lupine is the only food plant for the larvae of the endangered Karner Blue butterfly. Plants grow 2' tall on sandy loams to very dry sandy soils. Will not grow well in clay soils.
- Perennial and hardy to zone 4
- Plants grow to 2 feet tall
- Spires of bright blue flowers
- Prefers sandy loam to dry sandy soil
Instructions - Germination is greatly increased by a 7-day cold treatment in a slightly damp paper towel in a plastic bag in the refrigerator. Cold-treated seeds can be directly sown in spring or early summer. Untreated seeds can be sown outdoors in fall.
- Direct Seed: 1/8" Deep
- Germination: 14-60 Days
- Thin: 12-15" Apart
- Light: Sun/Partial Shade
Ratings & Reviews
Tried in 2021. Had only 3 seeds germinate + they died before transplanting to garden was possible.
Seed Savers Response: Hi Kathleen, I'm sorry to hear that this seed did not meet your expectation for germination. We do test germination every year to make sure only the best seed leaves our location. Please reach out to our customer service team to be sent a replacement for this seed.
Can't wait to see some butterflies!
I purchased these seeds at the MN Home and Garden show. I used the winter sowing method for germination and had good success. When they all had at least one set of true leaves, I transplanted the contents of each jug to the garden in one big clump so as not to disturb the roots. About a week later the plants have just about doubled in size and look fantastic. I'm hoping they will attract butterflies for years to come!