The spider plant — Chlorophytum comosum — has been one of the world's most popular houseplants for over a century, and for good reason. It is genuinely difficult to kill, thrives in the awkward "not-quite-bright" light most rooms actually have, is completely safe around cats and dogs, and politely makes you free new plants on long, arching stems. The trade-off? Brown leaf tips that drive people slightly mad. We will fix that too.

Spider plant overview & popular varieties

Native to the tropical and southern parts of Africa, spider plants are tough perennials with thick, tuberous roots that store water and nutrients. That root structure is the secret to their forgiving nature: skip a watering or two and the plant simply taps its reserves. Outdoors in warm climates, mature plants form dense clumps and send out wiry stems tipped with small white flowers and miniature versions of themselves — the famous "spiderettes" or babies that give the plant its name.

Common cultivars you will find at garden centres include:

  • 'Vittatum' — the classic: green leaves with a single creamy-white central stripe. Most likely to produce lots of babies.
  • 'Variegatum' — the inverse: white margins, green centre. Slightly slower-growing and a touch more sensitive to light.
  • 'Bonnie' — a compact, curly-leaved cultivar that stays small and looks great on a desk.
  • 'Hawaiian' (Reverse Variegated) — new leaves emerge yellow-striped and mature to deep green; very showy.
  • Solid green (the species) — less common but the toughest of all, and the best for very low light.

Light requirements

Spider plants are happiest in bright, indirect light — the kind of light you get a metre or two back from a sunny window, or right next to a window that does not get direct beams of sun. In that brightness they grow quickly, hold their variegation crisply, and produce the most spiderettes.

They will also tolerate medium and even low light, which is why they end up in offices and dim hallways everywhere. The trade-off in low light is slower growth, paler variegation, and very few (or no) babies. The all-green species handles dim spots better than the variegated cultivars because it does not have to compensate for less chlorophyll.

Avoid direct afternoon sun through glass. It will scorch the leaves to pale yellow within a day and leave permanent crispy patches. A south-facing window is fine if you filter the light with a sheer curtain or set the plant a couple of metres back.

Quick test. If you can comfortably read a book in the spot where your spider plant sits, it is getting at least the medium light a spider plant needs. If you need to switch a lamp on at noon, the plant will survive but will not flourish.

Watering — and the real cause of brown tips

Spider plants want to be watered thoroughly but not constantly. The right rule of thumb:

Water when the top 2–3 cm (about an inch) of soil feels dry. Then water until it runs out of the drainage hole, and empty the saucer.

In a bright room in summer that usually means once a week. In winter or in lower light, every 10–14 days — sometimes longer. Like almost every houseplant, more spider plants die from constant wet soil than from a missed watering. Their fleshy roots will rot in soggy conditions.

About those brown tips

This is the single most common spider plant complaint, and it has three causes — in this order:

  1. Fluoride and chlorine in tap water. Spider plants are unusually sensitive to fluoride, which accumulates at the leaf tips and burns the tissue. Most municipal tap water in North America, the UK and Australia is fluoridated. Switch to filtered water, rainwater, or tap water that has been left to sit uncovered for 24 hours (this only off-gasses chlorine, not fluoride — so filtered or rainwater is best).
  2. Salt build-up from fertilizer. Every couple of months, "flush" the soil by running plain water through the pot at the sink for a full minute. This rinses accumulated mineral salts out of the soil before they reach the leaf tips.
  3. Inconsistent watering. Long droughts followed by a heavy soaking stress the leaves. A predictable rhythm prevents this.

You can trim existing brown tips off with sharp scissors at an angle that follows the natural taper of the leaf. The tip will not re-grow, but the cut will look natural and the plant will not suffer.

Soil, pots and repotting

Any decent indoor potting mix will do, as long as it drains well. A simple recipe that works perfectly is two parts general-purpose potting mix to one part perlite. Avoid anything labelled "moisture-control" — it stays wet too long. If you want to know more about getting this right, our deep-dive on the best soil for indoor plants walks through every component and why.

Spider plants are unusual: they actually flower and produce more babies when they are slightly pot-bound. Do not be in a rush to up-pot every spring. Repot only when:

  • The roots are visibly pushing the plant up out of the pot, or
  • The pot is so packed that water runs straight through without soaking in, or
  • The plastic pot is bulging or cracking from root pressure.

When you do repot, go up just one pot size (about 2 cm / 1 inch wider). Drainage holes are non-negotiable. Spring is the best time, but spider plants will tolerate being repotted at almost any point in the growing season.

Fertilizer & humidity

Spider plants are moderate feeders. A balanced liquid houseplant fertilizer (something like 10-10-10 or 20-20-20) at half the label-recommended strength, once a month from early spring through to early autumn, is plenty. Stop feeding completely in winter when growth naturally slows. Overfertilizing is one of the top causes of brown tips, so when in doubt, feed less. For the full picture on what those N-P-K numbers actually mean, see our guide to fertilizing houseplants.

Humidity is rarely an issue. Spider plants happily tolerate the 30–50% relative humidity found in most homes. If your air is genuinely arid in winter (under 30%), grouping plants together or running a small humidifier helps — but misting does almost nothing in the long term.

Spiderettes: encouraging & propagating babies

The arching stems of plantlets are the spider plant's party trick. A mature, healthy plant in good light will produce dozens over a few years — and each baby is a free new plant. Here is how to nudge a reluctant plant into babymaking, and how to root the spiderettes once they appear.

Getting your spider plant to make babies

If your plant is healthy but stubbornly babyless, the cause is almost always one of these:

  • Too young. Spider plants typically need 12–18 months of growth before they bloom and pup.
  • Too much pot. They produce babies when they feel slightly crowded. An oversized pot delays flowering for years.
  • Not enough light. Bright indirect light is the trigger. Move the plant closer to a window for a few months.
  • No seasonal change in daylight. Shorter autumn days are part of the natural trigger to flower. Plants in rooms with steady artificial light year-round sometimes never bloom — placing them somewhere with a normal day/night cycle for a few weeks often fixes it.

Propagating the babies (three methods)

Wait until the plantlet shows tiny nub-roots or short white roots at its base — that is the signal it is ready to root.

1. Water rooting. Snip the spiderette off the runner and stand it in a small glass of water, deep enough to cover the root nubs but not the leaves. Refresh the water weekly. Roots that are 3–5 cm (1–2 in) long — usually 2–3 weeks — are ready to pot up in moist soil.

2. Soil propagation while attached. Place a small pot of moist potting mix next to the parent plant. Pin the spiderette down into the soil with a bent paperclip or hairpin, leaving it attached to the runner. The parent will keep feeding it while it forms roots in the new pot. After 3–4 weeks, snip the connecting stem.

3. Direct soil propagation. Cut the baby off, dust the cut with a little cinnamon (a mild natural antifungal — rooting hormone also works), and push it into damp potting mix. Keep the soil consistently moist for two weeks while roots establish.

For the bigger picture — including which methods work best for different plant types — see our complete guide on how to propagate houseplants for free.

Troubleshooting common problems

SymptomLikely causeFix
Brown leaf tipsFluoride/chlorine in tap water, fertilizer salt build-upSwitch to filtered or rainwater; flush the soil every 2–3 months
Pale, washed-out leavesToo little light, or overfertilizingMove to brighter indirect light; halve fertilizer
Limp, mushy leaves at baseOverwatering and root rotUnpot, trim mushy roots, repot in fresh airy mix
Crispy brown edges (not just tips)Severe underwatering or sunburnSoak thoroughly; move out of direct sun
No babies despite a mature plantPot too large, light too low, or no seasonal day/night changeUp the light, leave it pot-bound, expose to natural daylight
Faded variegation (white stripes greening up)Insufficient lightMove closer to a window; new leaves will return to normal
Sticky residue or fine webbingSpider mites or scaleRinse leaves; treat with insecticidal soap weekly until clear

For deeper diagnostic help, our guide to common houseplant pests covers every bug you are likely to meet indoors, and why plant leaves turn yellow walks through every cause of discolouration.

Pet safety

Spider plants are non-toxic to cats and dogs — one of the very few popular houseplants that gets a clean bill of health from the ASPCA. There is a long-standing rumour that cats get "high" from chewing the leaves, and there is a kernel of truth to it: the leaves contain mild compounds that some cats find pleasantly stimulating, similar to (but much weaker than) catnip. It is not dangerous, but large amounts can upset a cat's stomach.

If your cat treats the plant like a buffet, your options are: hang the plant in a basket out of reach, place it on a tall shelf, or give the cat a small pot of cat grass to redirect the habit. If you would like more pet-safe options to round out your collection, see our pet-safe houseplants list.

Frequently asked questions

How often should I water a spider plant?

Roughly once a week in spring and summer, every 10–14 days in autumn and winter — but always check first. Push your finger about 2 cm into the soil; only water if it feels dry. Spider plants tolerate slightly dry soil far better than soggy soil.

Why does my spider plant have brown tips?

The most common cause is fluoride in tap water, followed by salt build-up from fertilizer and inconsistent watering. Switch to filtered or rainwater, flush the soil every few months, and keep your watering rhythm predictable.

Are spider plants toxic to cats and dogs?

No — the ASPCA lists spider plants as non-toxic to both cats and dogs. Cats may chew the leaves because they enjoy them, which is safe but can cause vomiting in large amounts.

Should I cut off the spider plant babies?

Only if you want to. Leaving the spiderettes attached looks beautiful in a hanging basket and does not harm the parent. Cutting them off lets the parent put more energy into its own leaves.

How long do spider plants live?

With reasonable care, indoor spider plants commonly live 20 years or more — and through propagation, you effectively keep the same plant going indefinitely.

Can spider plants live outside?

Yes, in warm climates (USDA zones 9–11) they thrive outdoors in a shaded or partly shaded spot. Elsewhere, move them inside before night temperatures drop below 10°C (50°F).

Next up: if you have nailed the spider plant, try a slightly more sculptural beginner — the snake plant care guide — or browse our best beginner houseplants ranking for ideas.