Why Plants Die
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Snake plant

Dracaena trifasciata, Asparagaceae

Sources last read 14 September 2026.

Forgiving Among the more tolerant plants here.

Also called Golden Birds Nest, Good Luck Plant, mother-in-law's nose, Mother-in-law's Tongue, three-striped dragon tree and viper's bowstring hemp.

Snake plant (Dracaena trifasciata), the whole plant.
Anthony Batista, CC BY 4.0 · Wikimedia Commons

Snake plant is toxic

  • Toxic to cats. Toxic principle: Saponins. Clinical signs: Nausea, vomiting, diarrhea. ASPCA
  • Toxic to dogs. Toxic principle: Saponins. Clinical signs: Nausea, vomiting, diarrhea. ASPCA
  • Toxic to people. Harmful when eaten. Use gloves and protective gear when handling it. RHS

What the sources say about its care

Sources file this plant under other names: Sansevieria Trifasciata (RHS). Citations below point at the name its source uses.

Light
Low light 100 fc
Clemson Extension, filed as Sansevieria trifasciata · read 11 September 2026
Full sun, Partial shade
RHS · read 11 September 2026
Water
Well-drained
RHS · read 11 September 2026
Humidity

No source read publishes a humidity figure for any plant on this site. What follows is general guidance for foliage plants.

ASHRAE recommends indoor relative humidity between 30% and 60% 30–60%
Penn State Extension · read 11 September 2026
Temperature

How cold this tolerates, not what it prefers. No source read for this site publishes a preferred range for a plant indoors.

H1C — 5–10°C 5–10 °C
RHS · read 11 September 2026
Soil
Loam, Sand; pH Alkaline or Neutral
RHS · read 11 September 2026
Toxic to cats
Toxic
ASPCA, filed as Sansevieria trifasciata · read 11 September 2026
Toxic to dogs
Toxic
ASPCA, filed as Sansevieria trifasciata · read 11 September 2026
Harmful to people
Harmful when eaten. Use gloves and protective gear when handling it.
RHS · read 11 September 2026

How it usually goes wrong

Blades hang and feel thin between the fingers

The plant droops as a whole rather than losing particular blades, and the soil surface has gone pale and hard.

With well-drained soil taken past dry, there is nothing left for the roots to move, and the plant gives up its shape before it gives up its colour.

Telling it apart: Lift the pot. A plant that is light and sagging is thirsty; one that is heavy and sagging is not.

RHSSnake plant leggy, leaning growth: causes
Brown brittle margins with a green centre

On a snake plant the browning starts furthest from the midrib and works inward, and it crumbles rather than smears. The centre of each blade is untouched.

Leaf margins are the end of the water supply, so they are the first tissue to run short when the air takes more than the roots can send. Penn State Extension cites 30% to 60% as the recommended indoor range, and a heated room in winter sits below it.

Telling it apart: Whether the soil is dry too. Crisp edges with damp soil point at the air; with dry soil, at the watering.

Penn State ExtensionSnake plant brown leaf tips and edges: causes
Long bare stretches of stem between blades

Nothing browns and nothing drops; the snake plant simply makes less, and what it makes is stretched and thin.

Its source places it in low light. In less light than that the plant cannot fund full-sized blades, so it makes smaller ones and spends the difference on stem.

Telling it apart: Compare the colour of the newest leaf with one grown last year. Paler and smaller together is light; paler at the same size is more often feeding.

Clemson ExtensionSnake plant leggy, leaning growth: causes

Not sure which it is? Ask the diagnosis questions for Snake plant.

Routine care

Watering
It needs soil that drains well and careful watering; avoid overwatering, which rots the roots. From spring to autumn, let the soil dry between waterings.
NC State Extension · read 13 September 2026
Repotting
Move to a larger pot only once it is pot bound.
RHS · read 13 September 2026
Propagation
By division or stem cuttings.
NC State Extension · read 13 September 2026
Increase by leaf cuttings, division or suckers.
RHS · read 13 September 2026
Pruning
Pruning is not needed.
RHS · read 13 September 2026
Pests and diseases
Can be troubled by banded greenhouse thrips, fern scale and longtailed mealybug.
NC State Extension · read 13 September 2026
Vine weevil can attack it. Disease is uncommon.
RHS · read 13 September 2026

Move something and watch

Loading the simulator. It needs JavaScript; the care table above does not.

About the plant

Dracaena trifasciata is a species of flowering plant in the family Asparagaceae, native to tropical West Africa from Nigeria east to the Congo. It is most commonly known as the snake plant, Saint George's sword, mother-in-law's tongue, and viper's bowstring hemp, among other names. Until 2017, it was known under the synonym Sansevieria trifasciata. This plant is often kept as a houseplant due to its non-demanding maintenance; they can survive with very little water and sun.

From Wikipedia, CC BY-SA 4.0 · read 13 September 2026

Native range
S. Nigeria to WC. Trop. Africa, Tanzania
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
West and West Central Africa
NC State Extension · read 13 September 2026
C Africa
RHS · read 13 September 2026
Climate
seasonally dry tropical
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Growth form
rhizomatous geophyte
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Herbaceous Perennial, Succulent; habit clumping, erect
NC State Extension · read 13 September 2026
Clump forming (evergreen)
RHS · read 13 September 2026
Size
Height 36–48 in
NC State Extension · read 13 September 2026
Height 1-1.5 metres; spread 0.1-0.5 metres after 5–10 years
RHS · read 13 September 2026
Flowering
Flowers green, white; blooms in spring
NC State Extension · read 13 September 2026
Flowers green in summer and autumn; white in summer and autumn; cream in summer and autumn
RHS · read 13 September 2026

Common problems with Snake plant

Other Dracaena

More of the Asparagaceae family

Plants with similar care

Sources

What this does not cover

The figures above are what published sources say, not measurements of the plant in your room. They say nothing about your pot size, your water, the season, or how far from the glass the plant stands, and those decide more than any figure here does.

Humidity has no species figure because no source read for this site publishes one, and the only temperature published for this plant is a cold floor. The simulator fills those gaps with general figures for its kind of plant, marked as general and listed on how we read sources. Where a toxicity row says the plant was not assessed, that is the absence of a finding and not a finding of safety.

If something is already wrong, the diagnosis tool asks about the soil, the window and the watering, which is where the answer usually is.