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Aethionema grandiflorum

Aethionema grandiflorum
Aethionema grandiflorum

Common name stonecress
Family brassicaceae
Life cycle perennial (Z5-9)
Flowers pink (late spring-summer)
Size 6" tall, 12" wide
Light full sun
Cultural notes well-drained soil; drought-tolerant
From seed 6 weeks cold, then germinates rapidly at room temp.
detailed seed-starting info below
Seed ripensearly July

One of my favorite rock garden plants. Its foliage is evergreen, so even after the flowers are done, the blue-green foliage on reddish stems stays attractive. And those flowers, arriving in the second half of May, are especially nice close-up, where you can see the pink veins on light background - from further away, they just look like a pale pink (to my colorblind eyes, anyway). The plants last for a few years, sometimes even do a bit of reseeding – but sooner or later they disappear. So through the years, we've grown several batches from seed trades and society exchanges to replenish our stock; there are some differences in appearance between the various generations, so it's quite possible that not all of them were this species. But all of them were welcome in our garden.

Seedlings are slow-growing, but already show the tidy blue-green foliage.

This plant used to grow in our garden, but it slipped away...

Seed for this plant is included on my seed trade list

One or more images of this plant are included in my stock photo catalog

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PlantLinks to other web pages about Aethionema grandiflorum

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Seed-starting details for this plant

  1. Seed from '06 garden. Baggy 35F (6w) - 65F (100%G, 3-5d)
  2. Seed for A. grandiflorum from NARGS '07/'08 exchange. Baggy 70F (4w; 40%G, 5-16d) - 35F (5w) - 70F (34%G, 3-6d)
  3. Seed from '08 garden. Baggy 35F (6w; 2%G, 6w) - 70F (94%G, 1-3d)
  4. Seed from '09 garden. Baggy 35F (7w; 5%G, 5w) - 70F (36%G, 3-6d)
  5. Seed from '09 garden. Baggy 35F (9w; 3%G, 5w) - 70F (75%G, 3-5d)
    Seed for A. grandiflorum from '10 trade. Baggy 35F (6w; 3%G, 5w) - 70F (97%G, 3-5d)
  6. Seed from '10 trade. Baggy 35F (6w) - 70F (91%G, 3-6d)
  7. Seed from '10 trade. Baggy 35F (7w) - 70F (87%G, 3-5d)
  8. Seed from '14 garden. Baggy 35F (8w; 5%G, 7w) - 70F (90%G, 3-5d)
  9. Seed from '15 garden. Pot outside 11/10 (some seedlings, 13d)

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