USDA zone

•  3 (-39 °C) (6)
•  4A (-35°C) (1)
•  4B (-32 °C) (2)
•  6B (-21 °C) (2)
•  10B (+2 °C) (6)

Light

• sunny (2) 

  semi-shade (2)

Flowering

•  approx. 2 months in summer (1)
•  August-September (1)
•  July-August (1)
•  July-September (2)
•  June-August (11)
•  June-July (2)
•  May-July (2)
•  May-June (1)

Width

•  20 - 40 cm (1)
•  40 - 60 cm (2)
•  60 - 80 cm (2)

Flower colour

•  soft (1)
•  white (1)

Availability

•  In stock (1)
•  Available (2)