Monstera

How to Fertilize Monstera

Monstera deliciosa
Reviewed by Kiersten Rankel M.S.
Quick Answer
Use a balanced liquid fertilizer with a 3-1-2 NPK ratio, like a 9-3-6 or 20-20-20 diluted to half strength. Feed every two weeks from spring through summer. Taper off in fall and stop completely in winter.

When Should I Start Feeding My Monstera?

Since Monstera is almost always grown indoors, feeding timing follows seasonal light levels more than your local frost dates.

US feeding regions map
Pacific Feb–Oct
Mountain Apr–Sep
Midwest Mar–Oct
Northeast Mar–Oct
Southeast Feb–Oct
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How Often Should I Fertilize My Monstera?

Feed every two weeks during spring and summer when your Monstera is actively pushing out new leaves. This is when it's hungriest and can actually use the nutrients you're giving it.

Once early fall arrives, cut back to once a month at half strength. By late fall, stop feeding entirely. Winter light levels are too low for Monstera to grow much, and unused fertilizer just builds up as salt in the soil.

If you notice brown leaf tips or a white crust on the soil surface, you're probably over-fertilizing. Pale new leaves or slow growth in summer can mean it needs more.

Feeding Calendar
Spring & Summer
Half-strength liquid every 2 weeks
Early Fall
Half-strength liquid once a month
Late Fall & Winter
No feeding

What Is the Best Fertilizer for Monstera?

Monstera is a foliage plant, so it needs a fertilizer with a bit more nitrogen than phosphorus or potassium. A 3-1-2 ratio (like 9-3-6) is ideal because nitrogen fuels the big leaf growth Monstera is known for.

A liquid fertilizer is the easiest option. It distributes evenly through the soil and lets you control the strength each time you feed. Dilute to half the label rate to avoid burning the roots.

Slow-release granules can work too, but they make it harder to taper off in fall. Stick with liquid if you want full control over your feeding schedule.

Synthetic
Complete liquid formula with a 3-1-2 ratio that matches Monstera's needs. Mix 1/4 tsp per gallon for regular feeding.
Reliable water-soluble powder. Use 1/2 tsp per gallon (half the label rate) for Monstera.
Organic
All-in-one organic option with beneficial microbes. One scoop per gallon, no mixing hassle.
High-nitrogen organic liquid, great for foliage plants. Has a strong smell, so fertilize near an open window.

How Do I Fertilize My Monstera?

1
Water your Monstera first
Give it a normal watering and let the excess drain. Fertilizing dry soil can burn the roots.
2
Dilute to half strength
Mix your liquid fertilizer at half the dose on the label. For a 9-3-6 formula, that's about 1/8 teaspoon per gallon.
3
Pour evenly over the soil
Apply the diluted solution slowly around the base of the plant until it starts to drain from the bottom. Avoid splashing the leaves.
4
Let the excess drain
Don't let your Monstera sit in the runoff. Empty the saucer after about 15 minutes to prevent salt buildup.
5
Skip the next watering's fertilizer
Alternate between plain water and fertilizer water. This keeps salts from accumulating in the soil between feedings.

Got More Questions?

Can I use coffee grounds or banana peels to fertilize my Monstera?
Coffee grounds acidify the soil and can attract fungus gnats, so they're not a great fit for potted Monstera. Banana peels break down too slowly in a pot to deliver meaningful nutrients. A liquid fertilizer is more reliable and easier to control.
What happens if I over-fertilize my Monstera?
You'll usually see brown, crispy leaf edges or tips first. White salt crust on the soil surface is another sign. Flush the pot with plain water several times to wash out excess salts, then skip feeding for a month.
Should I fertilize my Monstera in winter?
No. Winter light levels are too low for Monstera to use extra nutrients. Feeding during dormancy leads to salt buildup in the soil, which damages roots over time.
Do I need to fertilize a newly repotted Monstera?
Wait 4 to 6 weeks after repotting before fertilizing. Fresh potting mix already has enough nutrients, and the roots need time to recover from the move.
Why are my Monstera's new leaves small even though I'm fertilizing?
Small new leaves are usually a light problem, not a fertilizer problem. Monstera needs bright indirect light to produce its signature large, fenestrated leaves. Move it closer to a window before increasing fertilizer.
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About This Article

Kiersten Rankel M.S.
Kiersten Rankel M.S.
Botanical Data Lead at Greg · Plant Scientist
About the Author
Kiersten Rankel holds an M.S. in Ecology & Evolutionary Biology from Tulane University. A certified Louisiana Master Naturalist, she has over a decade of experience in science communication, with research spanning corals, cypress trees, marsh grasses, and more. At Greg, she curates species data and verifies care recommendations against botanical research.
See Kiersten Rankel's full background on LinkedIn.
Editorial Process
Fertilizer recommendations verified against Monstera deliciosa growth data from Greg's botanical database, cross-referenced with USDA hardiness zone data and published horticultural research.
77,712+ Greg users growing this plant
USDA hardiness zones 10a–12b