Plant Care Fat boy

Fat boy

5.0 out of 5 (3 experiences)

Fat boy has a Large, lush leaves plant personality Large, lush leaves
Fat boy has a Fast grower plant personality Fast grower

Also known as

Philodendron 'Fat Boy' and Philodendron Fat Boy


Philodendron martianum

How to care for Fat boy


How often to water your Fat boy

Water needs for Fat boy
0.5 cups
every 12

Fat boy needs 0.5 cups of water every 12 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 12 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 Large, lush leaves plant personality Large, lush leaves 1
Fat boy has a Fast grower plant personality Fast grower 1
Fat boy has a Survivor plant personality Survivor 1
Lilli avatar
leaf-1 37 Plants
xp 1,143 XP
globe Lyefjell, Rogaland

It does not handle overwatering well.

Large, lush leaves Large, lush leaves

Trending in your area

Similar to Fat boy

Discover rare plants

This plant is popular in