Answer: Rhus trilobata, or Squawbush, is a deciduous sumac with a clumping growth habit. It's fast-growing to 3-5' tall and wide under normal growing conditions (full sun and little water in fast-draining soils). It does not need regular fertilizer applications. This would be especially so if you planted in a garden soil amended with sand - sand will facilitate good drainage and the organic matter inherent in garden soil will supply the nutrients your sumac requires. Plan on keeping your bonsai outdoors in full sunshine and watering only when the soil dries almost completely.
Best wishes with your bonsai!
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