Pyracantha, a genus of evergreen shrubs in the rose family, is commonly called firethorn. Many gardeners appreciate this plant's versatility, as it can be grown as bonsia, as thick, thorny hedging, trained as an espalier or placed in the garden as an ornamental shrub. Pyracantha shrubs prefer full sun, but will grow in partial shade. It flowers in late spring and red berries appear in late summer. Pyracantha produces thick thorns on its branches, and puncture wounds cause allergic reactions in some individuals. Pyracanthas, when grown as shrubs, require very little pruning. Prune the shrub in late winter.
Don protective clothing and leather gloves.
Cut off any diseased or dead branches. A shrub infected with pyrancantha scab will have black scabs on the leaves and berries and should be removed and destroyed.
Prune any branches that have overgrown the shape you desire for your shrub. Pyracantha blooms on old wood (wood produced last season), so save as much old wood as possible. Cut the branches back to where they meet another branch or the main stem.
Rake the planting bed to remove any leaves, branches or twigs.
Water the pyracantha shrub, with the amount of water you use for regular watering, after pruning.