Callistemon Rigidus - Stiff Bottlebrush
This spectacular, and unexpectedly hardy, shrub bears dense spikes of flamboyant red bottle-brush flowers that appear in late spring and early summer. Narrow, sharply pointed leaves adorn this dazzling shrub that is possibly the hardiest of all bottle brushes. It also grows to a height of over 6 feet.
These seeds have already been thoroughly cleaned and cold-stored for several months. They should be sown into a well-drained, sandy compost at any time of the year, and covered thinly with sand or grit, with no artificial heat needed. The seed tray is best left in a cool spot and kept moist, seeds generally germinating slowly in cool conditions in the spring, whenever they are sown, although odd ones may come up at any time.