- Name: Tree Peony - Other Common Names: Mountain Paeony - Scientific Name: Paeonia Suffruticosa Syn. Paeonia Arborea - Color: Mixed Colors - Various Shades Of Red, Pink, Purple, White, Orange, & Yellow With Some Bicolor - Plant Seeds: Summer Or Warm & Cold Stratify - Plant Height: 3 - 5' + - Plant Spacing: 4 - 6' + - Bloom Time: Late Spring - Early Summer - Hardiness Zone: 5 – 7 - Light Requirements: Sun - Part Shade - Soil & Water Preferences: Average - Quantity: 10 Seeds - Other: More Info Coming Soon.