Color of flowers

• Blue (2)
• Multi-colored (1)
• Orange (6)
• Red (4)
• Rose (2)
• White (15)
• Yellow (12)

Flowering period

• Spring (1)
• Summer (1)

Location

• Everywhere (1)
• Sunny (1)

Growth

• Small shrub (1)
• Tree (1)

Minimum temperature

• -5 °C (6)
• -10 °C (2)
• -15 °C (11)
• -20 °C (3)
• -25 °C (3)
• 0 °C (18)
• 5 °C (5)

winter temperature

• 5 (+/- 5) °C (1)
• 8 (±5)°C (1)

Hardiness Zones

• 7 (1)
• 8 (1)