'Toms'
Flowering time:
end of May-beginning of June
Flowers: dark violet, with strong, very dark purple spots
Leaves: evergreen
Height: 2 m (in 30 years)
Width: 2 m (in 30 years)
Hardiness: very good (-30°C)
Growing: In shade, in acidic (pH 4.5-5.5), moderately moist, loose, rich in humus and permeable soil