Plant care guide
Leggy Monstera: Fix the Light, Add Support, Then Prune
Updated · First published
Why is my Monstera deliciosa getting leggy?
A leggy Monstera, with long bare stem between small leaves, is usually short of light. Heavy feeding can add to it, and a vine with nothing to climb sprawls and leans. Existing stretched stem will not tighten up, but new growth will once light and support improve.
What to do first
Move the plant gradually into brighter light out of direct sun, cut back on fertilizer, and give the stem a sturdy moss pole or stake. To reshape it, cut the top off below an aerial root and root that piece.
A leggy Monstera has long stretches of bare stem, small leaves spaced far apart, and a habit of flopping sideways. It looks unhealthy, but the cause is usually simple. Fix the conditions first, then decide whether to prune.
Penn State Extension’s Monstera article is direct about it: Monstera will get leggy in lower light. It also shows a photo of a large, leggy plant that needs staking.
Check these three things
1. Light at the growing tip. Iowa State University Extension’s environmental diagnosis guide calls low light the typical cause of spindly growth. Look at where the newest leaf sits. A tip pointing at a distant window, or a plant in the middle of a room, is likely too dim.
2. Feeding. Iowa State and University of Maryland Extension’s diagnosis table both name too much fertilizer as a second cause. Iowa State says it promotes fast, spindly growth.
3. Support. In the wild, Monstera is a climbing vine. NC State Extension’s Monstera profile says sturdy support is needed to stop the stems breaking. UW–Madison Extension notes it rarely branches. A sprawling stem will keep heading one way unless you train it.
Do not confuse leggy growth with the plant’s normal young form. Penn State explains that juvenile leaves are small and mostly uncut. Solid leaves have their own guide: Monstera with no holes.
Match what you see
| What you see | Likely cause |
|---|---|
| Long gaps between leaves, small new leaves, plant leaning to a window | Too little light |
| Fast, soft, stretched growth after regular heavy feeding | Too much fertilizer |
| Long stems lying over the pot edge or bending under leaf weight | No support |
| Short gaps, healthy leaves, just a big plant | Normal size; it needs space or pruning |
What to do
- Raise the light gradually. Penn State suggests a site near a sunny window with bright light but no direct sun. UConn’s Monstera factsheet warns the large leaves burn easily, so increase light in steps.
- Add light if windows fall short. UW–Madison Extension’s Monstera article says it can be grown under fluorescent light. University of Illinois Extension’s lighting page suggests 14–16 hours of light a day in low-light conditions, and no more than 16.
- Cut back on fertilizer. Iowa State says reducing fertilizer gives slower but more compact growth. Never exceed the label rate.
- Give it something to climb. Penn State lists moss sticks, trellises, bamboo stakes and moss-covered boards. Attach the stem gently with its aerial roots or ties. UConn reports leaf size typically increases once vines attach to a support.
- Prune or propagate to reshape. NC State suggests pruning in spring if needed. UW–Madison describes cutting the stem tip just below an aerial root and potting it. University of Minnesota Extension’s propagation guide adds that a cutting needs a node to grow.
UConn also notes that vines with established aerial roots can be planted deeper, within 5–7.5 cm (2–3 in) of the first leaf node. Do not bury the growing tips, which can rot.
What to expect
Iowa State is clear that previous growth will always look spindly. The bare stem stays bare. Judge the fix by the spacing of the next few leaves.
Some Monstera are naturally tighter. Penn State notes ‘Thai Constellation’ is more compact because of its shorter internodes. Variegated plants need more light than green ones, as NC State notes; see our variegated Monstera light guide.
If the plant is stretched and also barely growing, read our Monstera slow growth guide. For pole options, see our article on whether Monstera needs a moss pole.
References
- Penn State Extension: Monstera as a Houseplant
- Iowa State University Extension: Diagnosing Houseplant Problems from Improper Environmental Conditions
- University of Maryland Extension: Diagnose Indoor Plant Problems
- UW–Madison Extension: Swiss-Cheese Plant, Monstera deliciosa
- UConn Home & Garden Education Center: Monstera deliciosa
- NC State Extension Gardener Plant Toolbox: Monstera deliciosa
- University of Illinois Extension: Houseplant Lighting
- University of Minnesota Extension: Propagating Monstera deliciosa
How this guide was put together: Penn State Extension, Iowa State University Extension, University of Maryland Extension, UW–Madison Extension, UConn Home & Garden Education Center, NC State Extension and University of Illinois Extension guidance.