Compare the geranium on the left, growing in a planter with pumice wick, and the geranium on the right, growing in the original, conventional pot.

These geraniums were used as a side by side test to demonstrate the efficacy of growing plants using a pumice wick vs. growing in a traditional method. The plants were purchased from a nursery in identical 4" grower pots. The geranium on the right was left in the original pot, the geranium on the left was transplanted to a larger planter, equipped with a pumice wick. Watering regimes were identical and both plants were left to grow for a full growing season before the photograph was taken.