The best water for calathea and prayer plants
Calatheas react to chlorine, chloramine and fluoride in tap water. Distilled, rain and filtered water each have different mineral profiles.
- Removes chlorine, chloramine and fluoride
- Adds back 20+ minerals
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Filtered, rain or distilled water. This family reacts to chlorine, chloramine and fluoride with crisp brown edges, even in a humid room. You do not need pure water; you need water without those three, and filtered and remineralized water does that from the tap.
What calatheas react to
Chlorine and chloramine, which stress their fine roots.
Fluoride, left at the leaf edge.
Softener salt, which is worse than hard water.
Cold water. Use room temperature.
Which water to use
| Water | What it does for this plant | Catch |
|---|---|---|
| Tap water | Carries chlorine, chloramine and fluoride straight to the roots | The usual cause of crispy edges |
| Tap water left out overnight | Loses chlorine only | Chloramine and fluoride remain |
| Distilled water | Clean, nothing harmful | Contains almost no minerals |
| Rain water | Excellent | Only when you have it |
| Filtered and remineralized | Removes chlorine, chloramine and fluoride and keeps minerals | Needs a filter |
Watering Can With Filter and Remineralizer for House Plants
Filters chlorine, chloramine, fluoride and lead as you fill it, then adds back 20+ minerals
Free shipping · 30-day money-back guarantee
plus sales tax where applicable
How to switch
Use filtered and remineralized water.
Flush the pot once.
Keep the soil evenly moist; trim crisp edges if you like.
The Tap Water Plant Guide
Which 12 houseplants react to tap water, how to tell water damage from overwatering, and four ways to fix it — including the free ones.
Watering Can With Filter and Remineralizer for House Plants
Filters chlorine, chloramine, fluoride and lead as you fill it, then adds back 20+ minerals
Free shipping · 30-day money-back guarantee
plus sales tax where applicable
Frequently asked questions.
Better water, tonight's watering.
- Free shipping · 30-day money-back guarantee
- Free shipping
- 30-day money-back guarantee
- Replaceable filter packs