Swiss cheese vine leggy, leaning growth: causes and what to do
4 results in the diagnosis tree begin with leggy growth, 1 of them marked likely when the answers fit. They are ordered here for Swiss cheese vine (Monstera adansonii), using what its sources say about light, pruning and feeding and 2 problems recorded for it.
Sources last read 14 September 2026.
Monstera adansonii, the Adanson's monstera, Swiss cheese plant, five holes plant or monkey mask plant, is a species of flowering plant from family Araceae, which is widespread across much of South America and Central America. Monstera adansonii is classified as a hemiepiphyte vine and can be found in tropical forests with hot and high humidity conditions. Wikipedia, CC BY-SA 4.0
Native range: Trop. America (wet tropical). Also sold as Adanson's Monstera, Cheese Plant, Five Hole Plant and Swiss Cheese Plant.
What Swiss cheese vine’s sources say that bears on this
How this shows up on a Swiss cheese vine
Long bare stretches of stem between leaf blades
Nothing browns and nothing drops; the Swiss cheese vine simply makes less, and what it makes is stretched and thin.
A plant stretches when the light is short of what it evolved for. Its source describes partial shade, and a room darker than that sets the vine reaching.
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.
RHS · read 13 September 2026Lower leaf blades collapse and yellow within days of a watering
Whole leaf blades yellow at once rather than browning at a margin, and the Swiss cheese vine looks deflated despite soil that has not dried since it was watered.
The source for this plant describes moist but well-drained soil. Compost that stays saturated loses the air spaces fine roots grow into, and those roots die back first.
Telling it apart: Weigh the pot in your hand. A pot still heavy a week after watering is holding more water than the roots are using.
RHS · read 13 September 2026Possible causes, likeliest first for a Swiss cheese vine
Most likely not enough light
Ranked higher because Swiss cheese vine's recorded problems point this way.
- Partial shade RHS · read 13 September 2026
Why: Far from a bright window, a swiss cheese vine builds leaves it cannot afford.
What to try:
- Move it closer to the brightest window you have, over a week or two rather than in one step.Useful: grow light
- Water less while it is in low light; a swiss cheese vine that is barely growing uses little.
What would settle it: Compare a new leaf with one from last year. Smaller and paler, with a longer gap below it, is the reaching pattern rather than a nutrient one.
Possibly a lamp that is too far away or too weak
Ranked higher because Swiss cheese vine's recorded problems point this way.
- Partial shade RHS · read 13 September 2026
Why: The light a lamp delivers falls away quickly with distance, so a swiss cheese vine a little further from the lamp than intended gets much less.
What to try:
- Check the manufacturer's recommended distance for the lamp and measure it.
- Use a lamp made for growing plants rather than an ordinary household bulb.
What would settle it: Whether the growth nearest the lamp is more compact than the growth further away. A difference down the swiss cheese vine is a distance problem.
Probably still not quite enough light
Ranked higher because Swiss cheese vine's recorded problems point this way.
- Partial shade RHS · read 13 September 2026
Why: Stretching is how a swiss cheese vine reaches for light, and an east or west window gives direct sun for only part of the day.
What to try:
- Check what its sources say about light on its page here.
- Turn the pot a quarter-turn each week so the growth does not all lean one way.
What would settle it: Whether it leans. A swiss cheese vine reaching for light bends toward the window and its newest leaves are the smallest; a swiss cheese vine growing to its habit does neither.
Less likely for a Swiss cheese vine, still possible
Questions
- What usually causes leggy growth on a Swiss cheese vine?
- For Swiss cheese vine: most likely not enough light, possibly a lamp that is too far away or too weak and probably still not quite enough light.
- How can I tell which one it is on my Swiss cheese vine?
- Where does it get its light? A north window, or no window within a few metres; An east or west window; A south window, close to the glass; A grow light or lamp.
- What do Swiss cheese vine's sources say about its light?
- RHS: Partial shade.
- What does this look like on a Swiss cheese vine?
- Nothing browns and nothing drops; the Swiss cheese vine simply makes less, and what it makes is stretched and thin. 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.
- Is Swiss cheese vine safe to handle while I check it?
- Its sources list it as toxic to people. Wash your hands after handling the roots or sap, and keep trimmings away from pets.
Other plants that show leggy growth
AlocasiaThe crown leans hard toward the window
Dumb caneLower leaves collapse and yellow within days of a watering
Elephant earLong bare stretches of stem between leaves
Heartleaf philodendronA thin dry rim that crumbles between the fingers
MonsteraThe vine grows thin and sparse, and leans
Peace lilyLong bare stretches of stem between leaves
Something else wrong with the Swiss cheese vine?
What this does not cover
This page orders a decision tree's results using a plant's sourced care. It has not seen your plant, its pot or its window, and two problems at once are common: that is the usual reason a confident answer turns out wrong. The questions in the diagnosis tool narrow it further than a list can.