Texas sage brings silver-colored leaves and purple flowers to the garden. It grows large unless pruned. The best time for pruning Texas sage is just before the plant emerges from its dormant stage. Avoid trimming when the plant begins to bloom, even if it grows out more than normal.
Sterilize the tools
Before pruning Texas sage, take time to sterilize tools to prevent the spread of disease. Mix a solution of equal portions of bleach, water and rubbing alcohol. Soak your shears or other tools for a minimum of five minutes.
Select the appropriate type of pruning
Selective pruning is ideal for the informal garden and gives the plant a more natural look. Trim each limb just above the nearest bud for this look. For a more formal look, choose shearing. To trim Texas sage in this method, use shears to create the desired shape. Shearing often reduces the number of flowers produced.
Hard prune every three to five years
While hard pruning is not required, it helps to eliminate old growth and stimulate new growth. Cut approximately one-third of the old growth to within 6 inches of the ground. Use standard pruning to trim the remainder of the bush. Water the newly trimmed shrub sparingly and avoid feeding to encourage slow, strong growth.