Trim pampas grass with your choice of pruning tool while wearing protective clothing. It is best to prune pampas grass annually in late winter to prepare the plant for new growth in spring.Continue Reading
Put on protective clothing, such as a long-sleeve shirt, pants, and gloves. Protective clothing helps to protect your skin from the sharp leaf blades.
Cut the plant back near ground level with lopping shears, hedge shears or power pruners.
Apply a light, even distribution of a complete fertilizer (such as 8-8-8 or 10-10-10) to the trimmed plant to encourage new growth.