- 1). Ensure that the planting location has well-drained soil, since soggy soil will quickly kill the barberry plant. If necessary, transplant the barberry to another location.
- 2). Spread a 2- to 4-inch layer of mulch around the base of the barberry plant to help keep the soil moisture from evaporating.
- 3). Water the barberry plant daily with 2 to 3 inches of water each time for the first week after planting. Afterward, normal rainfall patterns will provide sufficient moisture for the plant. Supplement the barberry plant with additional water during periods of drought.
- 4). Fertilize the barberry plant once per year either in the early spring or the early fall. Sprinkle an all-purpose slow-release granular fertilizer around the base of the plant extending out to where the longest branches reach. Water the soil with a garden hose to soak the fertilizer down to the plant’s roots.
- 5). Prune the barberry only when it starts to crowd other plants or grow into walkways. Use pruning shears to cut off the long stalks near the base of the plant until the desired shape is achieved. Also look for any dead or diseased limbs which should also be removed in the same manner.
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