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Baptisia sphaerocarpa

 
Baptisia sphaerocarpa
yellow baptisia
Synonym(s) Baptisia viridis
Common name yellow baptisia
Family fabaceae
Life cycle perennial (Z5-9)
Flowers yellow pea flowers in summer
Size 3' tall by 2' wide
Light full sun
Cultural notes easy once established, drought-tolerant
From seed Germinate with bottom heat, several weeks
detailed seed-starting info below

This one took several years to flower from seed, but it was worth it. Even without flowers, the blue-green foliage is worthwhile. Last year, the abundant yellow flowers could be seen from quite a distance! This year, for some reason, it hardly flowered at all - could be the wet and dreary summer we had last year. The close-up photos explain the sphaerocarpa botanical name - the seed capsules are not pod-shaped, like most legumes including other baptisias, but spherical.

Baptisia sphaerocarpa developing seedpods

yellow baptisia seedpods
Baptisia sphaerocarpa
Young plant with single bloom spike

In our garden, this plant grows in the following areas: curve garden (back lobe), orchard nursery area

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Seed-starting details for this plant

  1. Seed from Park '00 order. 6pak 75F (25%G, 17-60d)
  2. Single seed from garden '03. Baggy, 65F (G 14d)
  3. Seed from garden '04. Baggy 65F (30d) - 75F (100%G, 7-13d)
  4. Seed from '05 garden. Sandpapered, then baggy 70F (60%G, 4-26d) - 75F (40%G, 8d)
  5. Same seed as above. Sandpapered, then baggy 75F (85%G, 9-31d)
  6. Seed from '07 gift. Sandpapered, then baggy 75F (100%G, 4-8d)
  7. Seed for 'Screaming Yellow' from HPS/MAG '11/'12 exchange. Sandpapered, then baggy 75F (100%G, 3-7d)

Bottom heat definitely helps.


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Last modified: May 28, 2015
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