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Colutea orientalis

 
Colutea orientalis
bladder senna
Colutea orientalis

Common name bladder senna
Family fabaceae
Life cycle shrub/perennial
Flowers copper/yellow (autumn)
Size 6'
Light sun

Not sure about the species ID of this one. It could also be C. arborescens. It survived its first winter in our garden, and proceeded to grow into a large bushy plant in its second year. But it showed nothing but mid-green compound leaves through the season - until late October. I'd stopped actually looking for flowers, but I happened to walk by while collecting seed, and spotted some of the coppery orange buds. Further inspection also turned up some opened flowers, which are two-toned with yellow accents. These flowers are supposedly followed by inflated seed pods, but these may not develop in our garden: we've already had several hard frosts.

bladder senna

In our garden, this plant grows in the following area: back yard island

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Seed-starting details for this plant

  1. Seed from '06 trade. Sandpapered, baggy 70F (8w; 50%G, 8d-7w). Several additional rounds of scarification were necessary to attain reasonable germination. Warmer conditions did not appear to aid germination
  2. Same seed as above. Sandpapered, soaked 1d, baggy 70F (6%G, 5d)

Germinated seeds prone to rotting - found that placing seeds above soil, with only radicle in soil, gave better results.


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Last modified: February 10, 2010
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