Monstera plants have become the stars of the indoor plant world, and for good reason. These stunning tropical beauties with their distinctive split leaves have captured the hearts of plant enthusiasts everywhere, dominating social media feeds and home dรฉcor magazines alike.

While most plant parents know that Monsteras need proper watering and indirect sunlight, many overlook a crucial aspect of care: fertilization. Providing the right nutrients at the right time can transform your Monstera from merely surviving to vibrantly thriving.

A monstera Deliciosa plant in a planter next to a bench.

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In this comprehensive guide, you'll discover everything you need to know about fertilizing your Monstera Deliciosa or Adansonii. We'll explore both DIY organic solutions you can make from kitchen scraps and premium commercial options for those who prefer convenience. Whether you're a seasoned plant collector or a beginner just starting your plant journey, you'll find practical advice to help your Monstera develop those gorgeous fenestrated leaves and maintain lush, healthy growth all year round.

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Monstera fertilizing: quick reference guide

Essential facts

  • Best NPK Ratio: 3-1-2 (nitrogen-phosphorus-potassium)
  • Fertilizing Frequency: Every 2 weeks during growing season (March-August), monthly in September-October, rarely in winter
  • Best Fertilizer Types: Balanced houseplant fertilizer, compost, worm castings
  • Signs of Nutrient Deficiency: Slow growth, yellowing leaves, small new leaves
  • Signs of Over-fertilization: Leaf burn, crusty soil surface, wilting despite proper watering

Seasonal quick guide

SeasonFrequencyNotes
SpringEvery 2 weeksStart when new growth appears
SummerEvery 2 weeksPeak growing season - most important time
FallMonthlyGradually reduce as growth slows
WinterRarely/NoneSkip unless using grow lights

Fertilizer Dilution

Always dilute liquid fertilizers to half the recommended strength for Monsteras to prevent root burn.

Monstera deliciosa vs. monstera adansonii: A comparison and fertilization guide

When considering Monstera varieties, it's common to encounter the Monstera deliciosa and the Monstera adansonii, also known as the Swiss cheese vine. While these two plants share a similar aesthetic appeal with their lush, holey leaves, they do have some differences. Monstera deliciosa is characterized by its larger, more robust large leaves and is often referred to as the "true" Monstera. On the other hand, Monstera adansonii features smaller, more delicate leaves and a trailing growth habit, making it ideal for hanging baskets or climbing up supports.

Despite their differences in appearance, both plants have similar care requirements, including fertilization needs. Therefore, whether you're tending to a Monstera deliciosa or a Monstera adansonii, providing them with the same fertilization regimen will help ensure their healthy growth and vibrant foliage.

Looking where to find Monstera Deliciosa? Visit my, Monstera Deliciosa Albo: Where to Find and How to Care for It guide.

Swiss cheese plant stems in a glass jar of water.

Did You Know? The Monstera genus has up to 48 species! Visit this, Which Monstera is it? post to figure out which Monstera you have.

Understanding why your monstera needs fertilizer

Think of fertilizer as a multivitamin for your Monstera. While these plants convert sunlight into energy through photosynthesis, they still need essential nutrients from soil to thrive and produce those stunning leaves.

The key difference between houseplants and their wild relatives? Your indoor Monstera lives in a limited amount of potting soil for years, while jungle-dwelling Monsteras enjoy constantly renewed nutrients from decaying matter and mineral-rich rainwater.

Even high-quality potting mix becomes nutritionally depleted after 6-12 months, leaving your plant struggling to maintain growth. Since Monsteras can reach heights of six feet or more with massive leaves, they require regular nutrient replenishment to support their impressive development. Without fertilization, your once-vibrant plant will gradually lose its luster as it exhausts its soil's resources.



Understanding your plant's nutritional needs

The NPK balance: What your monstera really wants

Monstera plants thrive with a specific balance of nutrients, primarily measured through the NPK ratio you'll see on fertilizer packages. For these tropical beauties, the magic formula is 3-1-2 (nitrogen-phosphorus-potassium).

Let's break down what these numbers actually mean for your plant:

Nitrogen (N) - The Leaf Maker: This is your Monstera's energy drink! As the highest number in the ratio, nitrogen fuels the production of those gorgeous, Instagram-worthy leaves. It's essential for chlorophyll production, giving your plant its deep green color and powering its leaf-making machinery.

Phosphorus (P) - The Root Supporter: Think of this as your plant's foundation builder. It develops strong roots and supports overall structure. Your Monstera doesn't need as much phosphorus (that's why it's the smallest number), but it's crucial for keeping your plant sturdy as it grows taller.

Potassium (K) - The Plant Protector: This is your Monstera's personal trainer - regulating water use and strengthening cell walls. The middle-sized number reflects your plant's moderate but important need for potassium to stay strong and resilient.

When shopping for fertilizer, look for these NPK ratios that follow the 3-1-2 pattern:

  • 3-1-2
  • 6-2-4
  • 9-3-6
  • 12-4-8

The higher the numbers, the more concentrated the fertilizer - meaning you'll need to dilute it more before application.

Beyond these primary nutrients, your Monstera also benefits from micronutrients like iron (for green leaves), magnesium (for photosynthesis), and calcium (for cell walls). Quality organic fertilizers like compost and worm castings naturally contain these micronutrients in balanced amounts, giving your plant the complete nutrition it needs without the risk of chemical burn.

Remember: When it comes to fertilizing your Monstera, balance is everything. The right nutrient ratio supports those spectacular fenestrated leaves while preventing the problems that come with nutrient deficiencies or excesses.

The secret world of micronutrients

But wait, there's more! Just like how we need more than just carbs, protein, and fat in our diet, your Monstera needs some extra goodies too. These are called micronutrients, and they're like vitamins for your plant:

  • Iron: Helps your plant keep its leaves green (no one wants yellow leaves!)
  • Magnesium: Supports photosynthesis (your plant's way of making food)
  • Calcium: Helps build strong cell walls (think of it as your plant's skeleton)

Pro Tip: When you're using organic fertilizers like compost or worm castings, you're actually getting these micronutrients naturally. How cool is that? It's like giving your plant a multivitamin without even trying!

Fun Fact: Did you know that your Monstera can actually tell you which nutrients it's missing? Yellow leaves often mean nitrogen deficiency, while purple-tinted leaves might mean you're low on phosphorus. It's like your plant is speaking its own language โ€“ you just need to learn how to listen!

large Monstera in a black planter with legs.

Recognizing signs your monstera needs fertilizer

  1. Slow or stunted growth: If your Monstera's growth appears sluggish or halted, it may require additional nutrients.
  2. Yellow spotting on leaves (chlorosis): While natural leaf yellowing occurs, excessive yellowing may signal a nutrient deficiency.

Troubleshooting guide

Problem: White crust on soil surface

  • Cause: Salt build-up from fertilizer
  • Solution:
    1. Flush soil thoroughly with distilled water until it runs freely from drainage holes
    2. Let soil dry to proper moisture level
    3. Reduce fertilizer concentration by half in future applications
    4. Consider switching to organic fertilizers which are less likely to cause salt build-up

Problem: Leaf tips turning brown

  • Cause: Fertilizer burn or concentration too high
  • Solution:
    1. Stop fertilizing immediately
    2. Flush soil thoroughly with clean water
    3. Cut affected leaf tips with clean scissors
    4. Resume fertilizing at half strength after 1-2 months

Problem: Yellowing leaves shortly after fertilizing

  • Cause: Overfertilization or wrong type of fertilizer
  • Solution:
    1. Flush soil with clean water
    2. Switch to a gentler organic fertilizer
    3. Ensure you're using the correct NPK ratio (3-1-2)
    4. Check that you're diluting properly

Problem: Plant not responding to fertilizer

  • Cause: Other care issues overshadowing fertilizer benefits
  • Solution:
    1. Check light conditions (insufficient light makes nutrients less effective)
    2. Verify watering practices (over or underwatering)
    3. Inspect for pests that may be stressing the plant
    4. Consider repotting if the plant is extremely rootbound

Problem: New growth is small and pale

  • Cause: Nitrogen deficiency despite fertilizing
  • Solution:
    1. Try a fertilizer with higher nitrogen content temporarily
    2. Ensure you're fertilizing often enough during growing season
    3. Check that roots are healthy and able to absorb nutrients
    4. Verify soil pH is in appropriate range (5.5-7.0)

Problem: Leaf edges curling after fertilizing

  • Cause: Too high concentration or application to dry soil
  • Solution:
    1. Always water before fertilizing, never apply to dry soil
    2. Dilute fertilizer more than package recommends for Monsteras
    3. Flush soil if symptoms are severe
    4. Reduce frequency of application

Recovery Tip: Plants suffering from fertilizer issues often need time to recover. Be patient and focus on providing optimal light, appropriate watering, and proper humidity while the plant heals.

Fertilizing frequency considerations

Determining the ideal fertilization frequency for your Monstera involves considering seasonal variations and specific growth conditions. During the warmer months of spring and summer, when plants experience heightened growth and activity, I typically recommend increasing the frequency of fertilization. This helps replenish nutrients more rapidly depleted during periods of vigorous growth. Conversely, in the fall and winter months, when Monstera growth naturally slows down, I advise reducing the frequency of fertilization. This allows the plant to enter a semi-dormant state without the risk of nutrient overload.

However, there are exceptions to this general rule, particularly for Monstera plants grown under grow lights. Grow lights provide consistent light and temperature conditions year-round, mimicking the plant's natural environment and promoting continuous growth. For Monstera plants receiving supplemental lighting, I recommend maintaining a consistent fertilization schedule throughout the year to support sustained growth and vitality. By adapting fertilization practices to suit seasonal changes and individual plant requirements, you can ensure optimal health and development for your Monstera.

Fertilization calendar

Spring (March - May)

Growth Phase: Awakening & Active Growth

  • March: Apply fertilizer once (half strength) as growth begins
  • April: Increase to every 2 weeks (full strength)
  • May: Continue biweekly fertilization
  • Plant Behavior: Watch for new leaves and unfurling

Summer(June - August)

Growth Phase: Peak Growing Season

  • June-August: Maintain biweekly fertilization
  • Tips: Water thoroughly before fertilizing on hot days
  • Plant Behavior: Maximum growth period, multiple new leaves

Fall (September - November)

Growth Phase: Slowing Growth

  • September: Reduce to monthly fertilization
  • October: Final fertilization for the season (half strength)
  • November: No fertilization needed
  • Plant Behavior: Growth slows, fewer new leaves

Winter (December - February)

Growth Phase: Dormant Period

  • December-February: No fertilization needed*
  • Exception: If using grow lights, fertilize monthly at ยผ strength
  • Plant Behavior: Minimal or no new growth

Note: If your home maintains warm temperatures (above 70ยฐF/21ยฐC) year-round and has bright light, you may continue monthly fertilizing at half strength.

Beautiful Monstera Adansonii plant.

Essential tips for fertilizing

When fertilizing your Monstera, it's essential to proceed with caution and consider a few key factors to ensure optimal plant health:

  1. Dilution Matters: Avoid using undiluted fertilizers, especially liquid ones, as they can harm your plant's delicate root system. Always follow the manufacturer's instructions for dilution ratios.
  2. Balance is Key: Pay attention to the chemical ratios in your fertilizer, particularly the N-P-K ratio (Nitrogen, Phosphorus, and Potassium). Aim for a balanced ratio suitable for your Monstera's growth stage and adjust as necessary.
  3. Watch Your Watering: Proper watering is just as crucial as fertilization. Ensure your Monstera's soil is neither too dry nor waterlogged, as excessive moisture can lead to root rot and nutrient deficiencies.
  4. Mind the Light: While Monstera plants thrive in bright, indirect light, excessive sunlight can scorch their leaves. Strike a balance by providing adequate light without subjecting your plant to direct sun exposure for extended periods.

By keeping these considerations in mind, you can effectively fertilize your Monstera and support its growth and vitality.

Finding the right fertilizer

When it comes to fertilizing your Monstera, there are several options to consider, each with its own set of pros and cons:

  1. Compost: Utilizing compost is an eco-friendly option that recycles organic waste into nutrient-rich soil amendments. It's accessible and beneficial for overall soil health. However, it requires time for decomposition and may not provide immediate nutrient availability.
  2. Worm Castings: Worm castings, also known as vermicompost, offer a concentrated source of organic nutrients. They're rich in beneficial microorganisms and promote soil structure. While they're effective, obtaining worm castings may require setting up a vermiculture system or purchasing them from a supplier.
  3. Synthetic Liquid Fertilizers: Synthetic fertilizers are readily available and offer quick nutrient uptake for your Monstera. They're convenient and effective, providing precise control over nutrient levels. However, they may contain chemicals harmful to the environment and require careful application to prevent over-fertilization.

Consider your preferences, budget, and environmental concerns when selecting the best fertilizer for your Monstera. Experiment with different options to find the one that best suits your plant's needs and your gardening philosophy.

Complete monstera fertilizer guide

As a plant enthusiast who appreciates eco-friendly solutions, I'm a big advocate for DIY organic fertilizers. However, commercial options also have their place depending on your needs and preferences. Let's compare all the options to help you choose the best for your Monstera.

Monstera Fertilizer Options: A Complete Comparison

Fertilizer TypeProsConsBest ForApplication RateCost
Liquid Syntheticโ€ข Fast-acting
โ€ข Precise nutrient ratios
โ€ข Easy to find
โ€ข Chemical runoff
โ€ข Can cause fertilizer burn
โ€ข Requires frequent application
โ€ข Quick results
โ€ข Precision feeding
โ€ข Beginners with dilution guidance
Every 2 weeks during growing season$
Slow-Release Pelletsโ€ขConvenient
โ€ข Long-lasting
โ€ข Less risk of over-fertilizing
โ€ข Less control over timing
โ€ข Hard to flush if problems occur
โ€ข May attract pests
โ€ข Low-maintenance care
โ€ข Busy plant owners
โ€ข Stable growing conditions
Every 2-3 months$$
Compostโ€ข Improves soil structure
โ€ขEnvironmentally friendly
โ€ข Adds beneficial microbes
โ€ขInconsistent nutrient levels
โ€ข Can be messy
โ€ข May introduce gnats
โ€ข Organic gardeners
โ€ข Plants in need of soil refreshing
โ€ขEnvironmental concerns
Every 1-2 months as top dressing$ (free if homemade)
Worm Castingsโ€ข Gentle, won't burn
โ€ข Excellent micronutrients
โ€ข Improves soil biology
โ€ข Low in macronutrients
โ€ข Limited availability
โ€ข More expensive
โ€ข Sensitive plants
โ€ขSeedlings
โ€ข Organic preferences
Monthly as top dressing$$$
Banana Peel Teaโ€ข Free from kitchen scraps
โ€ข Rich in potassium
โ€ข No chemicals
โ€ข Time to prepare
โ€ข Limited nutrients
โ€ข Potential odor
โ€ขSupplemental feeding
โ€ข Budget gardening
โ€ข Eco-conscious approach
MonthlyFree
Fish Emulsionโ€ข Complete nutrient profile
โ€ข Organic option
โ€ข Fast-acting
โ€ข Strong odor
โ€ข More expensive
โ€ข Needs refrigeration
โ€ข Rapid growth phases
โ€ข Nutrient deficiencies
โ€ข Organic gardening
Every 3-4 weeks$$

My top recommendations

For Beginners: Start with a balanced liquid houseplant fertilizer (like Dyna-Gro Foliage Pro) diluted to half strength. It's easy to control and adjust as you learn your plant's needs.

For Experienced Plant Parents: A combination approach works best - use worm castings as a soil amendment when repotting, then supplement with diluted liquid fertilizer during active growing periods.

For Eco-Conscious Growers: Homemade compost mixed with occasional worm casting applications provides excellent results without synthetic chemicals.

For Busy Plant Owners: Slow-release organic pellets (like Osmocote) applied every 3 months require minimal effort while providing consistent feeding.

Pro Tip: Whichever option you choose, remember that under-fertilizing is generally safer than over-fertilizing. You can always add more nutrients, but fixing fertilizer burn is much more challenging.

hands holding compost.

Step-by-step guide to DIY organic fertilizer recipe

Ingredients:

  1. Compost: Nutrient-rich compost from your compost bin or pile.
  2. Worm Castings: Harvested from your vermiculture system or these worm castings
  3. Measuring Tools: Measuring cups or scales for accurate proportions.

Instructions:

  1. Gather Materials

    Compost: Collect nutrient-rich compost from your compost bin or pile. Ensure that the compost is well-aged and fully decomposed.
    Worm Castings: Harvest worm castings from your vermiculture system. These nutrient-packed worm waste products will enrich your fertilizer blend.
    Measuring Tools: Prepare measuring cups or scales to ensure accurate proportions.

  2. Prepare Ingredients

    Measure out equal parts of compost and worm castings. For example, if you're using one cup of compost, use one cup of worm castings.

  3. Mix Thoroughly

    Transfer the measured compost and worm castings into a mixing container. Use a garden trowel or hand shovel to thoroughly mix the two ingredients together. Ensure that the mixture is well-blended for consistent nutrient distribution.

  4. Check Consistency

    As you mix, assess the consistency of the blend. It should have a uniform texture and appearance, with no clumps or pockets of unmixed material.

  5. Adjust Proportions (If Necessary)

    If the mixture seems too dry or too moist, adjust the proportions accordingly. Add more compost or worm castings to achieve the desired consistency.

  6. Store for Future Use

    Transfer the prepared fertilizer blend into an airtight container for storage. Keep it in a cool, dry place away from direct sunlight. Properly stored, the fertilizer can last for several months.

  7. Application

    When ready to fertilize your Monstera, sprinkle a thin layer of the homemade fertilizer onto the soil surface around the base of the plant. Alternatively, mix the fertilizer into the top layer of potting soil. Water the plant thoroughly after applying the fertilizer to help nutrients penetrate the soil and reach the plant's roots.

  8. Repeat as Needed

    Monitor your Monstera's growth and vitality, and fertilize as needed based on its nutritional requirements. Repeat the fertilization process every few months or as recommended for optimal plant health.

By following these simple steps, you can create a homemade organic fertilizer blend that will nourish your Monstera and promote healthy growth and vibrant foliage!

Fruits and vegetables scaps for compost.

Retail options

Not into worm castings or kitchen scraps? No worries, I've got you covered with retail options for fertilizing your Monstera. Synthetic liquid fertilizers offer a convenient and affordable alternative to DIY options. They are readily available and easy to use, making them ideal for busy plant enthusiasts. Additionally, some synthetic fertilizers come in pre-diluted or foaming pump forms, which are perfect for those with smaller plant collections or who prefer a mess-free application process. Here are some retail options:

Tip: Here are some indoor plants that thrive with a similar fertilizer mixture to Monstera: Philodendron, Pothos, Peace Lily, Spider Plant, Snake Plant, Fiddle Leaf Fig, Rubber Plant, ZZ Plant, Chinese Evergreen, Dracaena

Spider plant sitting on our mantel. Spider plants like the same cocktail for fertilizer.

Signs of over-fertilizing

Below is a comprehensive chart detailing the signs of excess fertilizer, illustrating the delicate balance between providing adequate nutrients and the risk of over-fertilization. While fertilizing is essential for plant health, it's crucial to recognize signs of over-fertilization as it can harm your plants.

Signs of Too Much FertilizerDescription
Fertilizer BurnBrown, scorched patches on leaves due to excess salts in the fertilizer damaging the roots.
Wilting or Drooping LeavesLeaves appear limp or droopy as roots become overwhelmed by nutrient concentration.
Yellowing or Browning Leaf EdgesEdges of leaves turn yellow or brown, resembling leaf scorch, due to excessive nutrients.
Stunted GrowthHindered growth patterns caused by an imbalance of minerals from excess fertilizer.
Algal BloomsGreen algae growth on soil surface in containers with excess fertilizer runoff.
Root DamageDamage to roots leading to root rot or decay over time from excessive fertilizer.

Frequently asked questions

What is the best time to fertilize my Monstera plant?

The best time to fertilize your Monstera plant is during its growing season, which typically spans from early spring to late fall (April to September). Fertilizing during this period supports optimal growth and development.

How often should I fertilize my Monstera Deliciosa plants?

For Monstera Deliciosa plants, it's recommended to fertilize them with a balanced houseplant fertilizer every 1-2 times per month during the growing season. During the fall and winter months, you may reduce the frequency or pause fertilization altogether as the plant enters its dormant phase.

What type of fertilizer is suitable for Monstera plants?

Monstera plants thrive with a fertilizer that has a balanced NPK ratio, preferably in the ratio of 3-1-2 (Nitrogen-Phosphorus-Potassium). Options include organic plant food, synthetic liquid fertilizers, or granular fertilizers. Choose a fertilizer that suits your preferences and the needs of your Monstera for optimal results in growth and foliage health.

Large monstera leaves.

Get the scoop on the right lighting for your Monstera in my, How Much Light Does Your Monstera (Swiss Cheese Plant) Need? post.

Ah, so there you have it, folks! Your Monstera's all set for some TLC with the perfect plant food. Whether you're nurturing your indoor jungle or just adding a touch of tropical flair to your space, keeping an eye on those aerial roots and heart-shaped leaves will ensure your Monstera's new growth is nothing short of spectacular. Remember, when it comes to fertilizer, a little goes a long wayโ€”no need for a gallon of water, just the right amount at the correct time. And if you ever spot those pesky brown spots or yellow spots, don't fret! It's all part of the fun in caring for your common Monstera. So, here's to happy, healthy plants, and may your Monstera vines grow as wild as your love for indoor gardening!

Thank you for visiting the blog today to learn about The Best Fertilizer for Monstera Deliciosa And Adansonii. Please let me know in the comments if you have any questions. Also, feel free to share your preferred method of fertilizing your Monstera!

Happy Plant Parenting!

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2 Comments

  1. Informative, I just bought a Thai constellation and want it to do well,,,to the fact that it was expensive,,thanks

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