Snake plant care: light, water and avoiding root rot
A snake plant grows well in bright indirect light and copes with much less, watered only once the compost has dried out. Too much water is what kills it, far more often than neglect. This page covers where to put it, watering, leaves that fall over, which variety to buy and pet safety.
- Bright indirect light is best, and it tolerates a dim spot. Keep it out of midday summer sun.
- Water only once the compost has dried out, and never leave it standing in water.
- Toxic to cats and dogs on the ASPCA listing, and the sap irritates skin.
What a snake plant is, and why it stores water
A snake plant is a succulent from Africa. The RHS describes it as coming from hot, dry habitats, which is why it has fleshy leaves that store water, and NC State gives the common species West and West Central Africa as its home. Penn State counts more than 70 species across Africa, southern Asia and Madagascar.
It was a Sansevieria until recently. Penn State explains that genetic research has moved the genus into Dracaena, alongside the corn plant and lucky bamboo, so the common snake plant is now Dracaena trifasciata, and most shops still label it Sansevieria. The name trifasciata means three bands, for the horizontal stripes on the leaves. Easy house plants that forgive neglect compares it with seven others, and the plant care guide has the light and water for every other species on the site.
Snake plant varieties, from dwarf rosettes to whale fins
The varieties split into tall upright kinds, dwarf rosettes, and a few odd shapes. Penn State describes the common green species as growing up to 1.2 m, while the dwarf Hahnii types stay around 15 to 18 cm and fit a desk or shelf. The RHS recommends the dwarfs for windowsills and shelves and the tall kinds for floor-level planters.
For a dim room, the RHS picks all-green plants: Dracaena zeylanica, Mikado, Moonshine and Hahnii. For bright light, it names the cylindrical kinds such as Boncel. The table gives the current Dracaena name first; the old Sansevieria name is what you will still see on most labels.
| Variety | What it looks like | Light it needs | Suits a pocket? |
|---|
| Dracaena trifasciata (Sansevieria trifasciata) | Upright sword leaves, dark green bands, up to 1.2 m | Bright indirect, copes with low light | Only while it is small |
| Dracaena trifasciata ‘Laurentii’ | The banded leaf with bright yellow edges, among the most sold | Bright indirect | Only while it is small |
| Dracaena trifasciata ‘Moonshine’ | Broad silvery-green leaves, little banding | Copes with low light, which the RHS lists it for | Only while it is small |
| Dracaena trifasciata ‘Bantel’s Sensation’ | Narrow leaves with vertical white stripes, up to 90 cm | Bright indirect, to hold the stripes | No, it grows too tall |
| Dracaena trifasciata ‘Hahnii’ | Dwarf rosette, the bird’s nest snake plant, about 15 cm | Copes with low light, which the RHS lists it for | Yes, the best fit |
| Dracaena trifasciata ‘Golden Hahnii’ | Dwarf rosette with broad golden edges, about 18 cm | Bright indirect | Yes |
| Dracaena zeylanica (Sansevieria zeylanica) | Plain silver-green mottled leaves | Very tolerant of low light, the RHS says | Only while it is small |
| Dracaena angolensis (Sansevieria cylindrica) | Stiff cylindrical leaves ending in a sharp point, can spread 90 cm | Bright light, even some sun, the RHS says | No, it spreads too wide |
| Dracaena angolensis ‘Boncel’ | Short, thick cylindrical leaves in a flat fan | Bright light, even some sun | Yes |
| Dracaena hanningtonii ‘Samurai Dwarf’ | Thick V-shaped leaves with red edges, about 15 cm | Thrives almost anywhere, Penn State says | Yes |
| Dracaena bacularis ‘Fernwood Mikado’ | Narrow upright dark green leaves that fill out with age | Copes with low light, which the RHS lists it for | Only while it is small |
| Dracaena masoniana (Sansevieria masoniana) | The whale fin, paddle leaves up to 25 cm wide and 1.2 m long | Bright indirect | No, it needs a floor pot |
Where to put a snake plant in the house
Bright indirect light is the best spot, and it will cope with much less. Penn State says it enjoys bright indirect light and tolerates low-light areas very well, and the RHS says it likes a bright, lightly shaded position but will cope in lower light. Plants for a low light room compares it with what else takes a dark corner.
The sources differ on direct sun, so be careful with it. Penn State says keep it out of direct sun, as it can burn, and the RHS says keep it out of midday sun in summer, which scorches the leaves. NC State lists two to six hours of direct sun a day. A spot near a window that never gets the hot middle of the day covers all three. The RHS adds that plants in shade grow taller leaves and plants in sun stay more compact.
Keep it at ordinary room temperature, away from radiators and cold draughts. The RHS gives 15 to 24°C as ideal, and NC State says it tolerates cool temperatures around 10°C.
How often to water a snake plant
Only once the compost has dried out, and check it with a finger rather than on a schedule. Every source agrees on this. The RHS says to water only once the compost has dried and to push a finger in to check rather than watering routinely. Penn State says water only when it is dry. Missouri Botanical Garden puts succulents among the plants that like the soil to dry out between waterings.
Overwatering is what kills snake plants. The RHS calls it a common cause of poor health because the roots rot, and Penn State and NC State both name root rot from overwatering as the main problem. The RHS adds a detail worth following: water the compost from above, avoiding the centre of the rosette, and pour away whatever drains into the saucer.
In winter it needs very little. The RHS explains why: growth slows and the plant draws on the water stored in its fleshy leaves, so it barely needs any unless it sits somewhere particularly warm. The finger test will tell you that on its own; you do not need a winter rule.
Humidity is not a concern, but a steamy room is. The RHS says snake plants like low humidity, never to mist them and to avoid a steamy bathroom, and NC State says it tolerates low humidity.
Compost, pots and feeding for a snake plant
Use a free-draining compost. The RHS uses peat-free cactus compost, or two parts loam-based compost to one part grit, and Penn State suggests a cactus mix or one with perlite. The pot needs drainage holes, and the RHS says it should be only slightly bigger than the last, because spare compost stays damp and rots the roots.
Tall kinds need a heavy pot. Penn State warns that the weight of the leaves can topple the plant, especially when the soil is dry, and that a very root-bound plant can crack a clay pot. It does not mind a snug fit, so repot only when it is crowded.
Feed during the growing season. The RHS gives a liquid houseplant or cactus feed once a month from April to September, and Penn State feeds monthly at half strength with an all-purpose fertiliser. Dust the leaves now and then, as Penn State suggests.
Why snake plant leaves fall over
Look at whether one leaf is falling or the whole plant is leaning. The RHS separates the two. Tall snake plants kept in very low light can grow leaves that flop, and those can be supported with a wire hoop or canes. If the whole plant is leaning, the RHS says to check for root rot.
Root rot shows at the base: soft, dark, mushy tissue where the leaves meet the compost, and a plant that wobbles in its pot. The RHS’s buying advice is the same test in reverse, a healthy plant sits firmly in its pot without rocking. If the base is soft, take it out, cut away everything soft, and repot the firm pieces into dry cactus compost. Two other causes are simpler: a light pot tipping over, which Penn State warns about, and a single damaged leaf, which Penn State says to cut off at soil level.
Is a snake plant toxic to cats and dogs
Yes. The ASPCA lists the snake plant as toxic to dogs and cats, with saponins as the toxic principle, and names nausea, vomiting and diarrhoea as the signs. Penn State says all species of snake plant are toxic to pets for the same reason, and the RHS says the sap irritates skin, so wear gloves to divide or prune one.
If an animal in the house chews plants, keep it out of reach, or choose a spider plant, which the ASPCA lists as non-toxic to cats and dogs.
A snake plant on the wall
A snake plant grows upright, so on a wall it gives height and strong vertical lines rather than a trailing curtain. Choose a dwarf kind from the table. Living wall systems, compared covers the other ways to put plants on a wall. Penn State warns that the tall ones topple in a light pot, and a dwarf Hahnii or Samurai stays in proportion with a pocket.
A pocket stands proud of the wall with air on every side, so the substrate dries from more directions than a pot on a shelf does, which suits a plant that wants to dry out between waterings. The Medium pocket holds 1.8 litres of substrate, about what a 15 cm pot takes. Use a free-draining cactus mix in it, and keep it off a steamy bathroom wall, which the RHS says to avoid.
The board hangs by a slot near its top on one wall hook, so the wall side is one screw, one plug and one drilled hole. Treat the filled weight like a heavy framed picture: plasterboard takes an expanding plug, brick a standard one, and a tiled wall needs a tile bit before the masonry bit. The mounting guide goes through it step by step.
- Fill the pocket a third full with free-draining peat-free cactus compost.
- Ease the plant out of its pot and keep the root ball whole.
- Set it at the same depth it grew before, top up and firm so it stands upright.
- Water lightly to settle the compost, then not again until it has dried out.
Snake plant problems and how to fix them
| What you see | Why | The fix |
|---|
| Soft, mushy base and a plant that leans | Root rot from overwatering | Cut away soft tissue and repot the firm pieces into dry cactus compost. |
| Single tall leaves flopping over | Very low light on a tall variety | Move it brighter and support the leaves with a hoop or canes. |
| Wrinkled, puckered leaves | Left dry too long | Water thoroughly once, then return to the finger test. |
| Pale or scorched patches on the leaves | Midday summer sun | Move it out of direct midday sun. |
| White cottony specks at the base of the leaves | Mealybugs, which the RHS names | Wipe them out of the leaf bases and check weekly. |
| Leaves collapsing with the compost dry | Vine weevil grubs eating the roots | Check the roots for grubs and repot into fresh compost. |
How to propagate a snake plant
The RHS gives three ways: pot up the offsets that grow around an established plant, divide a large clump, or take leaf cuttings. Penn State calls division the easiest. Wear gloves for all three, because the sap irritates skin. How to get rid of mealybugs is worth a look if you find white cotton in the leaf bases while you have it out of the pot.
- Take the plant out of its pot and pull away offsets that have their own roots, or split the clump into pieces that each have leaves and roots.
- For leaf cuttings, cut a mature leaf at the base and slice it across into 5 cm sections, keeping track of which end was down.
- Leave the cut surfaces to dry for a day or two so they callus, as the RHS describes.
- Push each piece halfway into damp free-draining compost, bottom end down, and keep it warm.
- Pot divisions and offsets straight into cactus compost, and support tall pieces with a cane until they root.
Leaf cuttings from a variegated plant usually come back plain green. The RHS says the method works best with all-green plants, so divide a Laurentii rather than cutting its leaves if you want the yellow edge to carry on.
Does a snake plant clean the air?
Not measurably in a real room. The figures that get quoted come from sealed test chambers, and the air exchange in an ordinary house swamps anything a few pots do. None of the sources on this page makes the claim either.
What are the downsides of a snake plant?
It is toxic to cats and dogs, and its sap irritates skin. It is also slow-growing, which the RHS says is why it is worth buying a larger plant if you want impact, and Penn State warns that tall ones topple in a light pot.
Does a snake plant flower?
Occasionally. NC State says it rarely blooms as a houseplant, with small, fragrant, greenish-white flowers on a stalk. Once they fade, the RHS cuts the stalk off at the base.
Can a snake plant go outside in summer?
Yes, once hardened off, the RHS says, in a sunny or lightly shaded spot. Bring it back in well before any risk of frost, because it is tender.
Is a snake plant a sansevieria or a dracaena?
Both names are in use. Genetic studies moved it from Sansevieria into Dracaena, as Penn State and the RHS both note, but most shops still sell it as a sansevieria.
References