Self-Watering Pots: Works If Soil Is Porous, Watch for Mineral Buildup

If It Works, Keep It

Many types exist; some suit certain plants better. Capillary action works if soil is well-textured and top dries regularly (yours does).

Risk: Mineral Buildup

Hard tap water leaves salts that concentrate over time. Flush every few months by heavy top-watering with clear water, or use filtered/distilled water.