Tap Water Suitability and Styrofoam Container Insulation for Sarracenia

An Oregon grower with unidentified Sarracenia rhizomes asks about tap water (NTU 0.02, hardness 5) and using styrofoam containers lined with plastic for root cooling.

Use Pure Water Regardless of Low PPM

Even low-mineral tap water accumulates salts over time. Use distilled, rain, or RO water for long-term health.

Styrofoam Insulation Helps in Direct Sun

Sarracenia tolerate warm roots better than Heliamphora or Cephalotus, but styrofoam pots reduce heat stress if sun hits containers directly. A good idea for summer.