Maria

Breeding Profile of Peony 'Maria'

The 'Maria' cultivar, developed by the Botanical Garden of Lomonosov Moscow State University, stands as a prime example of a herbaceous peony adapted to challenging climatic conditions. The biological architecture of this variety balances hardiness with aesthetic excellence, making it a strategic choice for professional landscaping in temperate zones.

Morphological Stability and Agrotechnics

The technical specifications of the plant, established by the Federal Research Center for Horticulture (FNTSO) and MSU, feature a 70 cm stem height, providing optimal stiffness to mitigate lodging under wind loads. The root system exhibits exceptional adaptability, with a cold hardiness rating ranging from -30°C to -40°C. This robustness is a critical survival mechanism, ensuring the plant thrives through harsh winters without the need for specialized protective structures.

Flowering Phenology

Blooming between May 31 and June 15, 'Maria' is classified as a mid-season variety. The double-flower structure necessitates intense photosynthetic activity: to achieve maximum bloom diameter and color purity (the signature white-yellow palette), full-sun exposure is mandatory. Inadequate light disrupts carbohydrate accumulation, which directly compromises flower development and decorative quality.

• Flower type: Double, featuring dense petal arrangement.
• Color palette: Pure white with distinct lemon-yellow undertones.
• Operational resilience: High winter hardiness (up to -40°C) and durability under standard agrotechnical care.

This MSU-bred cultivar represents a reliable choice for those prioritizing predictable flowering cycles and structural plant integrity in open ground environments.