Characteristics Flowering Shrubs and Trees Barberry. Height of plant (cm) higher 200 cm. Shelter in winter shelter is not required. Fragrant flower fragrance. Flower size small. Growth rate fast growing. Cold hardiness zone 4 (-34 to -29°c), 5 (-29 to -23°c), 6 (-23 to -18°c), 7 (-18 to -12°c), 8 (-12 to -7°c), 9 (-7 to -1°c). Landscape use specimen, hedge. Flower colour yellow. Timing of flowering june, spring. Light needs semi-shade, full sun. Water needs moderate. Not poisonous plant. Frost resistance. Neutral soil. Sandy loam soil, loamy soil.