Does your plant need filtered water?
11 of 100 species in this database need it
11 of our 100 species need it. Are the tips browning on a plant that is otherwise healthy and correctly watered, with a white crust on the soil or pot rim? That is minerals. Typically $20 to $45.
Are the tips browning on a plant that is otherwise healthy and correctly watered, with a white crust on the soil or pot rim? That is minerals. If there is no crust and no browning, your tap water is fine and a filter changes nothing.
Depends on the plant. Genuinely necessary for a specific handful of genera and pure superstition for the rest of the collection.
What it actually is
Fluoride and accumulated salts damage the leaf tips of certain plants. A carbon filter jug removes chlorine but not fluoride; distilled or rainwater removes both.
What to avoid
Leaving tap water out overnight is widely recommended and only lets chlorine evaporate. It does nothing to fluoride, which is the compound that actually browns a dracaena. If the plant is not in the group below, this is a solved problem you do not have.
Species in this database that need it
These genera are documented as sensitive to fluoride and salt accumulation — they brown at the tips where other species would not.
| Plant | Why it qualifies | Water | Difficulty |
|---|---|---|---|
| Snake plantDracaena trifasciata | Dracaena, a fluoride-sensitive genus | 14–21d | Easy |
| Peace lilySpathiphyllum wallisii | Spathiphyllum, a fluoride-sensitive genus | 5–7d | Easy |
| Spider plantChlorophytum comosum | Chlorophytum, a fluoride-sensitive genus | 7–10d | Easy |
| Corn plantDracaena fragrans | Dracaena, a fluoride-sensitive genus | 10–18d | Easy |
| Prayer plantMaranta leuconeura | Maranta, a fluoride-sensitive genus | 4–8d | Moderate |
| Dragon treeDracaena marginata | Dracaena, a fluoride-sensitive genus | 10–18d | Easy |
| Lucky bambooDracaena sanderiana | Dracaena, a fluoride-sensitive genus | 5–10d | Easy |
| Calathea orbifoliaGoeppertia orbifolia | Goeppertia, a fluoride-sensitive genus | 4–8d | Demanding |
| Rattlesnake plantGoeppertia lancifolia | Goeppertia, a fluoride-sensitive genus | 4–8d | Moderate |
| Triostar stromantheStromanthe sanguinea | Stromanthe, a fluoride-sensitive genus | 4–8d | Demanding |
| Ti plantCordyline fruticosa | Cordyline, a fluoride-sensitive genus | 6–11d | Moderate |
This table is filtered from our own species records — recorded soil recipe, humidity floor, light floor, watering interval or growth habit, depending on the product. It is not a list of things a retailer would like to sell you.
Other supplies
- Perlite worth it
- Orchid bark depends
- Cactus and succulent mix depends
- Pumice depends
- Moss pole depends
- Humidifier depends
Sources
- This database's own care records for 100 species — the recorded soil recipes, humidity floors, light floors and watering intervals this table filters on. Each species entry cites its own authorities.
- Missouri Botanical Garden Plant Finder — cultivation and pest records, cited per species
- North Carolina Extension Gardener Plant Toolbox — pest and disease guidance
- ASPCA Animal Poison Control — relevant where a product is used on a plant pets reach
Compiled and edited by Tony Valcarcel · 2026-09-12
Prices are hand-checked ranges stamped manual, not live figures, and they move with
pack size. We do not accept payment for placement and hold no merchant
relationships; there are no commission links on this page. How this is sourced.