Up for sale is one pack of 100 Bluebonnet flower seeds (Lupinus Texensis) also known as Texas Bluebonnets. Suitable for zones 3-10 Bluebonnets are annual lupines that create blue spike type blooms on 24" stems.
PLEASE NOTE: You can not direct sow bluebonnet seeds in late spring or summer heat. Please read the instructions below purchasing.
We offer flat rate combined shipping on all orders, no limit on the amount or type of seed packets.
CULTURE
Soil temperature: 70 degrees fahrenheit
Germination lighting: Light
Germination days: 20 days
Seed Depth: 1/8 inch
Seed Spacing: 12"
Plant spread: 12"
Plant height: 18"-24" inches
Plant type: Annual
Best sown from in fall. Prepare a shallow dish, like a pie pan, with 1/2" of very warm tap water (out of the faucet hot - do not exceed 140 degrees). Place your seeds in the warm water and let it cool where you need to let your seeds soak for at least 24 hours. Direct sow seeds and cover lightly with peat or compost. Bluebonnet's require consistent moisture and failure to germinate is usually due to dry fall or winter weather.
You can start also these early in pots, but they will need a few extra steps. Start by scarifying your seeds by nicking through the outer shell (see the last picture above, the seed on the right is scarified). You can use a nail file, sandpaper, or nail clippers similar to scarifying sweet pea seeds. Only remove a small are of the outer shell until you seed the inner seed kernel. Next step is to follow the directions about and soak the seeds overnight. Bluebonnets dislike being transplanted so use a 4" peat pot and do not remove from the pot when transplanting. Keep you potting mixture moist during germination and letting your potting mix dry out will ensure little or no germination.
There is also a scarification method where you put your seeds in the freezer and the pour boiling water over them. You can read more about this method reading this post by the Lady Bird Johnson Wildflower Center in Austin, TX:
https://www.wildflower.org/learn/how-to/grow-bluebonnets
You can not direct seed in late spring or summer.