When it comes to blue flowers, blue tweedia (Oxypetalum caeruleum or Tweedia caerulea) is in a class by itself. Grown an annual, it generally reaches about 2 feet tall, with somewhat sprawling stems that carry fuzzy, slender leaves and sprays of five-petaled, summer blooms in an amazing shade of sky blue. The flowers of this milkweed relative are followed by slender pods that split to release silky-tufted seeds. (If you don’t intend to collect seeds, I suggest removing the developing seedpods to encourage rebloom.) Best in full sun. Perennial in Zones 8 to 10 (where it can scramble up several feet higher with support), but you can grow it as an annual anywhere. Or, treat it like a tender perennial and bring the plant indoors for the winter to get many more flowers and earlier bloom the following year.
Collected in September 2021. At least 12 seeds.
Please read the germination information as well before ordering.