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Cistanthe grandiflora

Cistanthe grandiflora
rock purslane

Synonym(s) Calandrinia grandiflora
Common name rock purslane
Family portulacaceae
Life cycle tender perennial (Z8)
Flowers purple (summer)
Size 24"
Light sun-part shade
Cultural notes well-drained soil
From seed germinates readily at room temperature, with exposure to light
detailed seed-starting info below

Succulent plant native to Chile. Flowers rise on delicate stems over a mound of gray-green leaves. Tender perennial, sometimes grown as an annual - ours started flowering in late May, from an indoor start in late winter. References conflict on whether Calandrinia or Cistanthe is the proper genus for this plant.

Cistanthe grandiflora
Fat buds in late May

We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston.

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Seed-starting details for this plant

  1. Seed from '08 trade. Baggy 70F with light (78%G, 3-10d)
  2. Same seed as above. Baggy 70F with light (56%G, 3-9d)
  3. Seed from '10 garden. Bagy 70F with light (5%G, 8-14d)

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Last modified: June 14, 2015
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