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How far apart to plant cabbage and cauliflower depends on the mature size of each crop and the spacing needs of your garden beds.
As a general rule, cabbage should be planted 18 to 24 inches apart, while cauliflower needs about 18 to 24 inches as well, though some varieties can spread wider.
Getting the spacing right matters because cabbage and cauliflower are both heavy feeders that compete for nutrients, water, and sunlight.
When you plant cabbage and cauliflower too close, you risk stunted growth, smaller heads, and more pest problems.
In this post, we’ll look at how far apart to plant cabbage and cauliflower, why that distance matters, and some tips to keep both crops thriving side by side.
Let’s dig in.
How Far Apart to Plant Cabbage and Cauliflower
How far apart to plant cabbage and cauliflower really comes down to giving each plant enough room to form a healthy head.
Both are cool-season brassicas that grow into wide, leafy plants, so they need breathing room.
Here’s the breakdown:
1. Standard Spacing for Cabbage
Cabbage should be spaced 18 to 24 inches apart in rows that are 24 to 36 inches apart.
If you’re planting cabbage in a raised bed, aim for at least 18 inches between each plant so the leaves don’t overlap too much.
Compact varieties can handle 12 to 15 inches, but standard and savoy types need the full 24 inches.
2. Standard Spacing for Cauliflower
Cauliflower needs similar spacing, about 18 to 24 inches apart, with rows 24 to 30 inches wide.
Some larger cauliflower varieties can spread up to 30 inches, so check your seed packet for specifics.
Give cauliflower a little extra room if you’re growing a self-blanching type, since the leaves need space to curl over the head.
3. Spacing When Planting Them Together
When you plant cabbage and cauliflower in the same bed, use the wider spacing of the two.
So if your cabbage wants 18 inches and your cauliflower wants 24, go with 24 inches between every plant.
This way, neither crop gets crowded out, and both can reach their full potential.
Why Spacing Cabbage and Cauliflower Correctly Matters
Getting the distance right when you plant cabbage and cauliflower isn’t just about looks, it affects how well they grow.
Here’s why it pays off:
1. Better Airflow
Good airflow between plants helps prevent fungal diseases like downy mildew and black rot.
When cabbage and cauliflower are crammed together, moisture lingers on the leaves, which is a recipe for trouble.
2. Less Competition for Nutrients
Both cabbage and cauliflower are hungry crops that need consistent nutrients to form tight, heavy heads.
If they’re planted too close, their roots fight for the same food and water, and both suffer.
3. Easier Pest Control
Cabbage worms, aphids, and flea beetles love brassicas.
When you space cabbage and cauliflower properly, you can spot pests faster and spray or handpick more easily.
4. Room for Growth
Cabbage and cauliflower both start small but expand fast.
A seedling might look tiny at transplant time, but in a few weeks, it’ll need every inch of that 18 to 24 inch spacing.
Tips for Planting Cabbage and Cauliflower Together
If you want to plant cabbage and cauliflower in the same garden, a few simple habits make a big difference.
Here’s how to do it right:
1. Plan Your Rows First
Sketch out your rows before you plant so you know exactly how far apart each cabbage and cauliflower goes.
Use a measuring tape or a marked stick to keep things consistent.
2. Amend the Soil Well
Mix in plenty of compost before planting cabbage and cauliflower.
Rich soil holds moisture and feeds these heavy feeders all season long.
3. Water Deeply and Regularly
Consistent moisture keeps cabbage and cauliflower growing steadily.
Aim for about an inch of water per week, and water at the base to keep the leaves dry.
4. Mulch Between Plants
A layer of straw or grass clippings between your cabbage and cauliflower helps lock in moisture and block weeds.
Just keep the mulch a couple of inches away from the stems.
5. Rotate Your Crops
Don’t plant cabbage and cauliflower in the same spot year after year.
Rotating them to a new bed each season cuts down on soil-borne diseases and pests.
So, How Far Apart to Plant Cabbage and Cauliflower?
How far apart to plant cabbage and cauliflower comes down to 18 to 24 inches between plants, with rows spaced 24 to 36 inches apart.
Using the wider spacing for both keeps them healthy, productive, and easy to manage.
When you plant cabbage and cauliflower with the right distance, you get bigger heads, fewer pests, and a garden that works with you instead of against you.
Happy planting.