Pruning Nandina domestica ( heavenly bamboo). This shrub requires little pruning. If necessary, cut back any shoots in April that spoil the shape of the shrub.
If Nandina domestica has grown quite large, or if the shrub has become bare at the bottom you can renovate it by heavy pruning. Cut back one or two of the oldest stems just above the base of the plant in April.
Nandina domestica can withstand – 10 degrees Celsius. Needs protection in cold areas. Cover the base of the plant with a thick layer of dry mulch to reduce frost penetration.