Plant Care Fat boy

Fat boy

5.0 out of 5 (4 experiences)

Fat boy has a Survivor plant personality Survivor
Fat boy has a Fast grower plant personality Fast grower

About Fat boy

Philodendrons grow aerial roots that grip the bark of trees, allowing them to grow over 20 feet tall! Their leaves change shape as they climb and can grow larger than a dinner plate. Fossils show Philodendrons growing as far back as 30 million years ago when South America was still connected to Antarctica! ❄️


Philodendron martianum

Also known as

Philodendron 'Fat Boy', Philodendron Fat Boy and Philodendron Green Fatboy

How to care for Fat boy


How often to water your Fat boy

Water needs for Fat boy
0.5 cups
every 9

Fat boy needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Fat boy

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Fat boy in your home

Light needs and placement for plant Fat boy: 6ft from a window
6ft or less from
a window

Fat boy can tolerate being far from a window and light source.

Place it less than 6 feet from a south-facing window to ensure it receives enough light to survive 💪.

Select your region to see how the current weather in your area affects the placement of Fat boy in your home 🏡.


How to fertilize Fat boy

Nutrient, fertilizer, and repotting needs for Fat boy: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Fat boy after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs
Native Region

Care Summary for Fat boy

Fat boy

Fat boy

Greg recommends:


0.5 cups every 9 days


< 6ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

What other plant parents say

Fat boy has a Survivor plant personality Survivor 2
Fat boy has a Fast grower plant personality Fast grower 2
Fat boy has a Large, lush leaves plant personality Large, lush leaves 1
Mjaubeibi40 avatar
leaf-1 102 Plants
xp 8,581 XP
globe Lyefjell, Rogaland

It does not handle overwatering well.

Large, lush leaves Large, lush leaves

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