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Paeonia ostii

Paeonia ostii
tree peony
third-year plants

Common name tree peony
Family paeoniaceae
Life cycle perennial (Z4-8)
Flowers white/yellow (April)
Size 4-5'
Light sun-part shade
Cultural notes ordinary garden soil; resents transplanting

We already grow a tree peony, purchased as a plant - but this is my first successful attempt at starting a species tree peony from seed. This one has ruffled white flowers; I saw exactly one of those on a single fourth-year plant, and a few more the following year (as shown in the photo above). The flowers don't hang around for long, but they are spectacular while they last.

Paeonia ostii
As brand new seedlings
tree peony
April 2013: the very first bud!
Paeonia ostii
Bushy-frilly center on a fading flower
tree peony
Soon after the flowers fade, the seed pods start developing...
Paeonia ostii
...and take on a reddish hue within weeks
tree peony
Bursting open in mid-September to reveal the black seeds
Paeonia ostii
All done but still striking in mid-November

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

Seed for this plant is included on my seed trade list

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Seed-starting details for this plant

  1. Seed from '08 trade. Baggy 70F with PgX mix (5w; 60%G, 3-5w, developing a strong single root) - 35F (8w; roots become branched) - 70F (leaf development in 1-2w)

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