Perlite: what it does and when you actually need it
86 of 100 species in this database need it
86 of our 100 species need it. Lift the pot two days after watering. Typically $8 to $25.
The test, before you buy anything
Lift the pot two days after watering. If it still feels heavy and the soil is wet an inch down, your mix holds too much water and perlite fixes that. If it already feels light, buying perlite changes nothing.
Yes
Worth buying. Worth owning if you repot anything. It is the cheapest fix for the single commonest killer of houseplants.
Typical price $8–$25 for a bag large enough to repot a dozen plants. Hand-checked range, not a live price, last verified 2026-09-12.
We hold no merchant relationships, so nothing here is a commission link.
What it actually is
Volcanic glass popped like corn. It is inert, holds no nutrients, and does one job: it props open air channels in a mix so roots get oxygen and water drains instead of sitting.
What to avoid
Do not buy "perlite-enriched" potting soil expecting the same thing — the ratio is usually token. Buy the bag and mix it yourself. Fine grade is for seed starting; coarse is what you want for houseplants.
Species in this database that need it
Our recorded soil recipe for these species names perlite directly.
| Plant | Why it qualifies | Water | Difficulty |
|---|---|---|---|
| Swiss cheese plantMonstera deliciosa | Equal parts orchid bark, perlite, and coco coir | 7–10d | Easy |
| Snake plantDracaena trifasciata | Cactus mix, or two parts potting soil to one part perlite | 14–21d | Easy |
| PothosEpipremnum aureum | Standard potting mix with one part perlite added | 7–14d | Easy |
| ZZ plantZamioculcas zamiifolia | Cactus mix, or two parts potting soil to one part perlite | 14–21d | Easy |
| Peace lilySpathiphyllum wallisii | Standard potting mix with one part perlite added | 5–7d | Easy |
| Spider plantChlorophytum comosum | Standard potting mix with one part perlite added | 7–10d | Easy |
| Fiddle leaf figFicus lyrata | Equal parts potting soil, orchid bark, and perlite | 7–12d | Demanding |
| Parlor palmChamaedorea elegans | Standard potting mix with one part perlite added | 7–10d | Easy |
| Cast iron plantAspidistra elatior | Standard potting mix with one part perlite added | 10–14d | Easy |
| Baby rubber plantPeperomia obtusifolia | Two parts potting soil to one part perlite | 9–14d | Easy |
| Rubber plantFicus elastica | Three parts potting soil, one part perlite, one part orchid bark | 7–14d | Easy |
| Corn plantDracaena fragrans | Two parts potting soil, one part perlite | 10–18d | Easy |
| Heartleaf philodendronPhilodendron hederaceum | Two parts potting soil, one part perlite, one part orchid bark | 7–12d | Easy |
| Chinese evergreenAglaonema commutatum | Two parts potting soil, one part perlite | 9–16d | Easy |
| Prayer plantMaranta leuconeura | Two parts peat-free potting soil, one part perlite, one part fine bark | 4–8d | Moderate |
| Boston fernNephrolepis exaltata | Three parts peat-free potting soil, one part perlite | 3–6d | Demanding |
| English ivyHedera helix | Two parts potting soil, one part perlite | 6–11d | Moderate |
| Christmas cactusSchlumbergera truncata | Two parts potting soil, one part perlite, one part fine orchid bark | 7–14d | Easy |
| Chinese money plantPilea peperomioides | Two parts potting soil, one part perlite | 6–11d | Easy |
| Wax plantHoya carnosa | One part potting soil, one part orchid bark, one part perlite | 10–18d | Easy |
| Ponytail palmBeaucarnea recurvata | Two parts cactus mix, one part perlite | 14–30d | Easy |
| Dumb caneDieffenbachia seguine | Two parts potting soil, one part perlite | 7–12d | Easy |
| Flamingo flowerAnthurium andraeanum | One part orchid bark, one part perlite, one part potting soil | 6–10d | Moderate |
| Arrowhead vineSyngonium podophyllum | Two parts potting soil, one part perlite, one part orchid bark | 6–11d | Easy |
| Inch plantTradescantia zebrina | Two parts potting soil, one part perlite | 5–9d | Easy |
| Polka dot begoniaBegonia maculata | Two parts potting soil, one part perlite, one part fine bark | 5–10d | Moderate |
| African violetStreptocarpus ionanthus | Two parts African violet mix, one part perlite | 5–10d | Moderate |
| African milk treeEuphorbia trigona | Two parts cactus mix, one part perlite | 14–28d | Easy |
| Flaming KatyKalanchoe blossfeldiana | Two parts cactus mix, one part perlite | 9–16d | Easy |
| Spineless yuccaYucca gigantea | Two parts potting soil, one part coarse sand, one part perlite | 14–24d | Easy |
| Asparagus fernAsparagus setaceus | Two parts potting soil, one part perlite | 4–9d | Easy |
| Nerve plantFittonia albivenis | Two parts peat-free potting soil, one part perlite | 3–6d | Moderate |
| Maidenhair fernAdiantum raddianum | Three parts peat-free potting soil, one part perlite | 2–5d | Difficult |
| Florist’s cyclamenCyclamen persicum | Two parts potting soil, one part perlite | 4–9d | Demanding |
| Dragon treeDracaena marginata | Two parts potting soil, one part perlite | 10–18d | Easy |
| Lucky bambooDracaena sanderiana | Grown in water with pebbles, or two parts potting soil to one part perlite | 5–10d | Easy |
| Weeping figFicus benjamina | Three parts potting soil, one part perlite, one part orchid bark | 7–12d | Moderate |
| Dwarf umbrella treeHeptapleurum arboricola | Two parts potting soil, one part perlite | 7–14d | Easy |
| Areca palmDypsis lutescens | Two parts potting soil, one part perlite, one part coarse sand | 5–10d | Moderate |
| Kentia palmHowea forsteriana | Two parts potting soil, one part perlite | 8–14d | Easy |
| Lady palmRhapis excelsa | Two parts potting soil, one part perlite | 8–14d | Easy |
| Bird of paradiseStrelitzia reginae | Two parts potting soil, one part perlite, one part bark | 7–12d | Moderate |
| Calathea orbifoliaGoeppertia orbifolia | Two parts peat-free potting soil, one part perlite, one part fine bark | 4–8d | Demanding |
| Rattlesnake plantGoeppertia lancifolia | Two parts peat-free potting soil, one part perlite | 4–8d | Moderate |
| Triostar stromantheStromanthe sanguinea | Two parts peat-free potting soil, one part perlite, one part fine bark | 4–8d | Demanding |
| Watermelon peperomiaPeperomia argyreia | Two parts potting soil, one part perlite | 7–14d | Easy |
| Polka dot plantHypoestes phyllostachya | Two parts potting soil, one part perlite | 4–7d | Easy |
| String of heartsCeropegia woodii | Two parts cactus mix, one part perlite | 10–18d | Easy |
| Mini monsteraRhaphidophora tetrasperma | One part potting soil, one part orchid bark, one part perlite | 5–10d | Easy |
| Satin pothosScindapsus pictus | Two parts potting soil, one part perlite, one part orchid bark | 7–12d | Easy |
| Swiss cheese vineMonstera adansonii | One part potting soil, one part orchid bark, one part perlite | 6–11d | Easy |
| African mask plantAlocasia × mortfontanensis | One part potting soil, one part orchid bark, one part perlite | 5–10d | Demanding |
| CrotonCodiaeum variegatum | Two parts potting soil, one part perlite | 6–11d | Moderate |
| Ti plantCordyline fruticosa | Two parts potting soil, one part perlite | 6–11d | Moderate |
| Bird’s nest fernAsplenium nidus | Two parts peat-free potting soil, one part perlite, one part bark | 4–9d | Easy |
| Purple shamrockOxalis triangularis | Two parts potting soil, one part perlite | 6–11d | Easy |
| Scarlet starGuzmania lingulata | One part orchid bark, one part perlite, one part peat-free potting soil | 7–14d | Easy |
| Elephant bushPortulacaria afra | Two parts cactus mix, one part perlite | 10–21d | Easy |
| Crown of thornsEuphorbia milii | Two parts cactus mix, one part perlite | 10–21d | Easy |
| Tree philodendronPhilodendron bipinnatifidum | Two parts potting soil, one part perlite, one part orchid bark | 7–12d | Easy |
| Calla lilyZantedeschia aethiopica | Two parts potting soil, one part perlite | 4–8d | Moderate |
| CaladiumCaladium bicolor | Two parts peat-free potting soil, one part perlite | 4–9d | Demanding |
| Zebra alocasiaAlocasia zebrina | One part potting soil, one part orchid bark, one part perlite | 5–10d | Demanding |
| Blushing philodendronPhilodendron erubescens | One part potting soil, one part orchid bark, one part perlite | 6–11d | Easy |
| Dragon tail plantEpipremnum pinnatum | One part potting soil, one part orchid bark, one part perlite | 7–12d | Easy |
| Pygmy date palmPhoenix roebelenii | Two parts potting soil, one part perlite, one part coarse sand | 6–12d | Moderate |
| Bamboo palmChamaedorea seifrizii | Two parts potting soil, one part perlite | 7–12d | Easy |
| Blue star fernPhlebodium aureum | Two parts orchid bark, one part peat-free potting soil, one part perlite | 5–10d | Easy |
| Rabbit’s foot fernDavallia fejeensis | Two parts orchid bark, one part peat-free potting soil, one part perlite | 4–9d | Moderate |
| Table fernPteris cretica | Three parts peat-free potting soil, one part perlite | 3–7d | Moderate |
| Mistletoe cactusRhipsalis baccifera | Two parts orchid bark, one part potting soil, one part perlite | 7–14d | Easy |
| Fishbone cactusSelenicereus anthonyanus | Two parts orchid bark, one part potting soil, one part perlite | 7–14d | Easy |
| Tree aeoniumAeonium arboreum | Two parts cactus mix, one part perlite | 9–18d | Moderate |
| String of bananasCurio radicans | Two parts cactus mix, one part perlite | 12–21d | Easy |
| Creeping figFicus pumila | Two parts potting soil, one part perlite | 4–9d | Moderate |
| Banyan figFicus benghalensis | Three parts potting soil, one part perlite, one part orchid bark | 7–14d | Easy |
| Baby’s tearsSoleirolia soleirolii | Two parts peat-free potting soil, one part perlite | 2–6d | Moderate |
| Strawberry begoniaSaxifraga stolonifera | Two parts potting soil, one part perlite | 5–10d | Easy |
| Lipstick plantAeschynanthus radicans | One part orchid bark, one part peat-free potting soil, one part perlite | 6–11d | Moderate |
| Goldfish plantNematanthus gregarius | Two parts peat-free potting soil, one part perlite, one part fine bark | 6–11d | Easy |
| Ripple peperomiaPeperomia caperata | Two parts peat-free potting soil, one part perlite | 7–14d | Easy |
| String of turtlesPeperomia prostrata | Two parts peat-free potting soil, one part perlite, one part fine bark | 9–16d | Moderate |
| Sweetheart hoyaHoya kerrii | One part orchid bark, one part perlite, one part potting soil | 12–21d | Easy |
| Turtle vineCallisia repens | Two parts potting soil, one part perlite | 4–9d | Easy |
| Rex begoniaBegonia rex | Two parts peat-free potting soil, one part perlite, one part fine bark | 5–10d | Demanding |
| Coffee plantCoffea arabica | Two parts potting soil, one part perlite, one part fine bark | 5–10d | 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
- Orchid bark depends
- Cactus and succulent mix depends
- Pumice depends
- Moss pole depends
- Humidifier depends
- Grow light 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.