Silphium terebinthinaceum Perennials suitable for the rock garden normal, well drained as preferable exposure Sun color yellow it belongs to the family of Asteraceae the flowering period is July – October hight 300 cm – 400 cm density 1 potted seedlings per square meter, diameter pot 12cm It is sold at a price of 4.00 € – Aster, Echinops, Helenium, Helianthus, Penstemon, Rudbeckia code SI15100