Plant Care Iron cross

Iron cross

Also known as

O. deppei, "iron cross", "lucky clover", Four-leaf sorrel, Four-leaved pink-sorrel, "lucky leaf" and "four-leaf clover"


Oxalis tetraphylla

How to care for Iron cross


How often to water your Iron cross

Water needs for Iron cross
0.5 cups
every 9

Iron cross 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 Iron cross

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 Iron cross in your home

Light needs and placement for plant Iron cross: 3ft from a window
3ft or less from
a window

Iron cross may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.

Place it less than 3 feet from a south-facing window to maximize the potential for growth.

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


How to fertilize Iron cross

Nutrient, fertilizer, and repotting needs for Iron cross: 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 Iron cross after it doubles in size or once a year—whichever comes first.

Care Summary for Iron cross

Iron cross

Iron cross

Greg recommends:


0.5 cups every 9 days


< 3ft from a window


Repot after 2x growth

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

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