Cardiocrinum cordatum [20 Seeds]


Germination Information: I recommend these seeds only for patient gardeners who have experience with seeds that need a natural or artificial chilling period. Honestly, it is far easier and quicker to start with purchased bulbs, if you can find them. But if you enjoy growing something different from seed and don’t mind waiting a few years to get flowers, these can be an interesting and rewarding challenge.

The simplest approach is to sow the seeds, lightly covered, in a pot in mid fall to mid winter and set it outdoors for germination in spring, or possibly the spring after that. Giving the seeds a warm-moist period of several weeks, followed by a chilling period of about a month and then a return to warm temperatures, can help to speed up the process. I encourage you to read the Pacific Bulb Society’s page on this genus for more detailed germination information: Cardiocrinum.

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

Please read the description as well before ordering.

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Growing these seeds will be an exercise in patience, but getting them from germination to bloom will certainly give you a sense of accomplishment! Cardiocrinum cordatum produces slow-growing bulbs that welcome spring with broad, glossy foliage. The leaves are heavily veined with red when they emerge, gradually turning solid green. Once the bulbs reach flowering size (around year 5 to 6, usually), they send up a stout stalk that generally reaches 3 feet tall in my garden, though the species apparently can get to 6 feet tall. (That may indicate that these seeds are actually C. cordatum var. glehnii, even though I did not receive the original seeds as that variety.)

The long-petaled, creamy white, lightly fragrant, summer blooms develop into large, chunky seedpods that are quite ornamental. That stalk dies, but it will leave offsets that will flower after a few more years. Partial shade is ideal; average to moist but well-drained soil. Perennial bulb. I am not sure about the proven hardiness range (some sources say up to Zone 3), but I know it is fully hardy for me in southeastern PA (Zones 6/7).

Collected in mid October 2022. At least 20 seeds.

Please read the germination information as well before ordering.

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