Paeonia, 'Mystery' hybrid tree peony

Notable characteristics: The flowers defy easy description. In registering this variety with the American Peony Society, Saunders described the blossoms as "large semi-double pearled lavender with darker shadings, varied to palest green."  Semi-spreading habit, height at maturity 3'.

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

Growth habit and size at maturity (10 years old): Spreading habit, to 3' tall and and 4' wide.

Flower form and size: Single to semi-double 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.

Shipping time: Fall 2025