Do You Have To Tie Up Cabbage Heads?

Cabbage plants grow firm, round heads surrounded by large, loose outer foliage.

Tying up the outer leaves is not a required step in the growing process. As long as plants are healthy, they should produce a head regardless of whether they are tied or not.

That being said, binding the loose outer foliage can help to protect plants from strong sun and pests, and may result in tighter heads as well.

A close up vertical image of a purple cabbage plant with the outer leaves tied up around the developing head.
Photo by Heather Buckner.

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Read on to learn more about why and how to tie up cabbages that you’re growing in the garden.

Is Tying Worth It?

There is some debate among gardeners as to whether tying up the outer leaves is worth the extra effort. Head formation is not dependent on binding the loose outer leaves.

A close up horizontal image of a purple cabbage plant with a tight developing head and large outer leaves.
Photo by Heather Buckner.

If you find your plants are not forming heads, there are usually other causes, such as exposure to extreme temperatures, inadequate moisture, or a nutrient imbalance. Tying them tight won’t solve these problems.

Learn more about why cabbages may fail to form heads in this guide.

Nonetheless, there are a few reasons why this practice could still be beneficial.

First, it can help to keep pests such as slugs and snails out of your plants.

Using twine to secure the outer foliage can create a physical barrier that restricts pests’ access to the inner leaves. This can be a useful natural way to reduce pest problems.

Protecting the inner leaves with the outer ones can also shield them from the sun, keeping them from becoming discolored or damaged in intense sunlight.

It can also help to save space in the garden. Large outer leaves spread out wide, and take up a lot of space.

Binding them with garden twine or string can provide more room between plants, which could be especially useful if you are gardening in a small space.

A close up horizontal image of two purple cabbages growing in the garden with large outer foliage and small tight heads.
Photo by Heather Buckner.

Some varieties, such as napa cultivars, are often tied to produce tighter heads with softer, whiter foliage, a process referred to as “blanching.”

The idea is to protect the inner leaves from light exposure, keeping them from turning yellow or green and losing flavor.

There is no true consensus on whether this actually makes a difference or not in terms of the health of the plant, tightness of the heads, or flavor development.

Many gardeners swear by this process, while others say it isn’t necessary.

What should you do? Try tying a few plants and decide for yourself!

How To Tie Up Cabbages

If you decide to try this method, do so just before maturity when the head is about softball size, and has started to firm up.

A close up horizontal image of a developing cabbage head with lots of large foliage surrounding it.
Photo by Heather Buckner.

While holding the inner leaves together, wrap the outer ones upward so they form a ball around the head.

With the leaf tips held together, wrap soft garden twine around them a couple of inches below the tips, taking care to tighten the string enough that they are held in place, but not so much that they tear.

A close up horizontal image of cabbage leaves tied up around the developing head pictured on a soft focus background.
Photo by Heather Buckner.

Tie a loose knot that can be untied easily when you are ready to remove the twine for harvest.

An Easy Garden Experiment

Though binding up the foliage isn’t essential, it can be helpful in certain situations. But don’t just take my word for it.

A close up horizontal image of a purple cabbage head that is ready for harvest.

This quick and easy process makes for an excellent garden experiment. Try tying up a few cabbages this season, and decide what you think!

Have you tried this method before, and did you find it helpful? Any questions? Tell us about your experience in the comments section below!

And for more helpful information to grow your best cabbage crop yet, read these guides next:

Photo of author
Heather Buckner hails from amongst the glistening lakes of Minnesota, and now lives with her family on a beautiful homestead in the Vermont Mountains. She holds a bachelor of science degree in environmental science from Tufts University, and has traveled and worked in many roles in conservation and environmental advocacy, including creating and managing programs based around resource conservation, organic gardening, food security, and building leadership skills. Heather is a certified permaculture designer and student herbalist. She is also a fanatical gardener, and enjoys spending as much time covered in dirt as possible!

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