Mustard greens (also gai choy)

Growing Guide

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Where to plant

Full sun/part shade. Well drained, fertile, moist soil.

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Sow depth

5mm

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Space between seeds / seedlings

30-45cm

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Row space

20cm

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Size of pot needed (width / depth)

30-60cm2

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Seedling Sow Depth

5cm

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Best practice

Directly sown

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Germination (days)

6-8

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Maturity (days)

30

How to Grow

How to grow video guide
From seed

Choose a sunny or part shaded spot in your garden with well-drained soil.

Enrich with plant food.

Sow seed directly, planting them in clumps of 2-3 seeds min 30cm intervals.

Cover lightly with seed raising mix and water well.

Water regularly.

Thin seedlings, and feed weekly with fertilizer.

When plants are 10-15 cm tall, cut them with scissors just above ground level.

From seedling

Moisten the soil, then plant seedlings 30cm apart, 5cm deep.

Thoroughly water each plant after planting in the garden.

In a pot

Choose a pot at least 30cm wide and deep, position in a sunny or part shady spot.

Spread seed freely on the surface to have plants spaced 1-2cm apart.

Cover lightly with seed raising mix and water well.

Water regularly.

Once seedlings emerge, thin and feed weekly with plant food.

Ready to harvest

When plants are 10-15cm tall, cut them with scissors just above ground level.

Collect seed

The seeds shatter when they are ready to be dispersed, so be sure to collect seeds before that happens.

You can thresh the seeds by rubbing the seed head between your hands in a back and forth motion.

Wait until the pods just start opening or are turning brown.

Then cut the stalks off and dump them headfirst in a paper bag.

Label the bag.

Let the seed heads dry out in the bag for a few weeks.

Collect the seed from the bags, and put them in a sealed dry container in the fridge.

When to Grow

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Zone 1 - Cool

January , February , March , April , May , June , July , August , September , October , November , December

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Zone 2 - Temperate

January , February , March , April , May , June , July , August , September , October , November , December

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Zone 3 - Subtropical

January , February , March , April , May , June , July , August , September , October , November , December

Companion Planting

Tips for Care

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Sow mustard greens successively for a continuous supply.
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Mustard greens enjoy cool weather and will bolt (flower) quickly in warmer weather.
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Crop rotation is particularly important when growing mustard greens because they’re in the brassica family.

This family includes broccoli, cabbage, Brussels sprouts, collards, kale, radishes, and turnips.
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Mustard Greens are great for a winter harvest, they grow slow but will survive and provide food throughout winter!
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Don’t plant your mustard greens near your bean of any kind.

Both of them are prone to molds and mildews, and it can spread among them.
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Mustard greens average 5 days to maturity for consumption as microgreens, 21 days until they’re ready to eat as baby leaves, and 37 days until maturity for full-sized leaves.

Pick or snip off leaves as you are ready to eat them.

Pests & Problems


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