She currently divides her life between San Francisco and southwestern France.

If you need to trim this barberry, do so after it flowers.

Its flowers are also yellow, and appear in spring. This barberry grows slowly and stops at about 12 inches tall, but exceeds that in width. If it gets untidy, trim it into shape after it flowers. Reduce branches on old shrubs in late winter. Tie nonproductive branches together and cut the old clump down to the ground with a long-handled lopper.

On deciduous varieties, tie target branches before leaves drop. When shrubs grow too big to manage, tie up branches and prune all clumps down to 1 inch tall.

Liquid fertilizers such as Miracle Gro are mixed with water and applied the same as you would water the plant see product for specific details.

They produce fruits or berries that create seedlings. It is recommended that you prune the shrubs after they have fruited, during fall or winter. Dead woods should be removed during summer months, and the bushes should be pruned in the period between mid Estimated Reading Time: 5 mins. These shrubs are often used in mass plantings or as a hedge. The same pruning technique can be used if they are planted as a specimen.

For these plants, pruning should be done in the early spring, before they leaf out. Shear or prune the outer branch tips to shape and reduce the size of the plant. Repeat this pruning technique throughout the summer, as needed.