Why autumn pruning makes all the differenceAgapanthus, also known as African lilies, are tough, low-maintenance plants. Agapanthus that are left with old, dying foliage can become sluggish, less productive and more vulnerable to disease over winter. Done right, autumn pruning boosts your plant’s chances of thriving through the cold months and returning with full force. Common mistakes to avoidEven experienced gardeners can slip up when it comes to autumn pruning. By clearing out dead growth and offering a bit of winter protection, you’re laying the groundwork for a lush, flower-filled summer next year.