Plant Care Field Mustard

Field Mustard

About Field Mustard

Field Mustard is a relatively rare houseplant 🌿 that is easy to grow and needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Field Mustard likes soil that is well draining. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.

Field Mustard belongs to the Brassica genus, and is native to China.


Brassica rapa

Also known as

Choy sum, Napa cabbage, Pak choi, Yellow sarson, Komatsuna, Turnip, Purple top turnip, Hakurei and Tatsoi

How to care for Field Mustard


How often to water your Field Mustard

Water needs for Field Mustard
0.5 cups
every 9

Field Mustard 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 Field Mustard

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 Field Mustard in your home

Light needs and placement for plant Field Mustard: 1ft from a window
1ft or less from
a window

Field Mustard love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Field Mustard does not tolerate low-light 🚫.

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


How to fertilize Field Mustard

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

Difficulty Level

Field Mustard is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Water Needs
Sunlight Needs
Native Region
Growth Pattern
Growing Outdoors

Care Summary for Field Mustard

Field Mustard

Field Mustard

Greg recommends:


0.5 cups every 9 days


< 1ft 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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