Trichostema dichotomum (Forked Bluecurls) [20 Seeds]


Germination Information: Surface-sow the seeds over moist growing mix indoors, under lights, in early to mid spring, or direct sow in late spring. The first time I started this species from seed, I sowed on April 1, on a heat mat, and sprouts first appeared on April 8. Germination might take several weeks, though, so be patient. When I sowed in 2022, I sowed on April 7 and the first seedling didn’t appear until April 25. If no seedlings appear after a month or so, consider setting the pot outside if it is still chilly at night, or give the pot an artificial chilling period of about a month. Once you get forked bluecurls going in your garden, it is likely to self-sow.

Note that this information will not appear on the seed packet you receive.

Please read the description as well before ordering.

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I first fell in love with the charming little blooms of forked bluecurls (Trichostema dichotomum), also known as bastard pennyroyal, in a photograph. Acquiring the seeds so I could grow it was not easy, though. The only seed source I could find was from plants growing in Florida, and though they germinated well and produced healthy, bushy plants, they didn’t even start making flower buds before frost here in PA. Finally, I was able to score a few plants grown in PA, and success: flowers in September! The bushy plants, which usually reach about 2 feet tall, have lightly aromatic, green leaves that can have a grayish tinge due to a covering of fine hairs. My plants also had some red along the edges of the leaves—a pretty complement to the small but abundant, intricate, blue-and-white blooms. You sometimes see that red leaf blush in other photos, but I don’t know if it’s due to particular growing conditions or if its likely to appear in the seedlings from these seeds. Forked bluecurls is native to eastern and central North America. Full sun to light shade. Annual.

2021-collected seeds sold out. I hope to collect again in October 2022. At least 20 seeds.

Please read the germination information as well before ordering.

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