Two 4-foot, three-ball topiaries potted after a wedding: one died quickly, the second shows progressive browning from the top ball down. Regular watering in a hot, dry Pennsylvania summer.
Cause: pots too small for root systems. Plants this size need 50-gallon containers. Top-down dieback indicates root restriction. Poor drainage in pots can also cause root rot.
Remedy: monitor watering carefully, fertilize lightly in spring and fall with low-nitrogen fertilizer. Long-term, plant in ground or much larger containers.
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