Paeonia, 'Thunderbolt' hybrid tree peony

Notable characteristics: Enticing black-crimson with satin petals streaked with scarlet. Center of bright yellow stamens makes a striking contrast. Blossoms held above and to the side of finely cut foliage. Slow growing.

Cultivar group, hybridizer and year introduced: Lutea hybird, Saunders, 1948.

Growth habit and size at maturity (10 years old): Spreading habit, to 42'' tall and and 4' wide.

Flower form and size: Tight single blossoms to 6-8".

Flower fragrance: Light, spicy-sweet.

Bloom time: Late season tree peony, blooms in our USDA zone 6a garden in the first or second week of June.

Zone hardiness: Proven in USDA zones 4-9.

Plant size: 1 year old tree peonies have 1 woody stem with a vigorous root system. This size plant will most likely flower its second spring in the ground.

When we ship: FALL 2025