Scientific Name: Paeonia x 'Hillary' (Paeonia x hybrida)

Common Name: Itoh Peony (also known as Intersectional Peony) 

Hardiness Zone: 3-8 

Hardiness Degree: -40°C (-40°F) 

Blooming Season: Late spring to early summer (typically May to June) 

Plant Habit: Upright, bushy, and mounded; forms a dense shrub-like structure that dies back to the ground in winter 

Characteristics: Intersectional hybrid featuring large 6-8 inch semi-double blooms that emerge deep rosy-pink and fade to a creamy apricot with dark red centers; provides a multi-coloured effect as flowers age at different rates; strong stems require no staking; deer and rabbit resistant 

Water: Average water needs; prefers consistent moisture but must have well-drained soil; avoid overwatering or "wet feet" which can cause root rot 

Fertilize: Apply a balanced slow-release fertilizer or a low-nitrogen fertilizer in early spring when new shoots appear; a second light feeding after blooming can support foliage health 

Spacing: 30-36 inches (76-91 cm) apart for mass plantings to allow for air circulation and the mature spread 

Height: 24-30 inches (61-76 cm) 

Width: 30-36 inches (76-91 cm) 

Exposure: Full Sun to Partial Shade; requires at least 6 hours of sun for best flower production, though afternoon shade is beneficial in hotter climates to preserve bloom colour