You can grow cabbage in a pot with good results.
Give each plant its own container that holds at least 5 gallons and is 12 or more inches deep, pick a compact early variety, and grow it in the cool weather of spring or fall with 6 or more hours of sun. If you meet those basics, a single potted plant can make a firm, kitchen-ready head.
Cabbage is a heavy eater and a heavy drinker, and that’s where pots get tricky. The soil in a container dries out faster and runs low on food sooner than a garden bed.
Once you plan for steady water and a couple of feedings, growing cabbage in containers works well on patios, decks and sunny balconies.
Can Cabbage Grow in Pots?
Yes, cabbage grows well in pots, as long as the container is big enough and the weather stays cool while the head forms. Container cabbage needs the same things as garden cabbage.
The difference is that you control all of it, including the soil, the water and the food.
What Does a Potted Cabbage Need to Form a Head?
Cabbage (Brassica oleracea var. capitata) is a cool-season crop that grows best at 60 to 70°F. Above about 80°F, heads turn loose or bitter, or the plant bolts to flower.
To form a solid head, a potted plant needs:
- Root room: about 5 gallons of mix per plant, and 10 gallons for full-size heads
- Sun: at least 6 hours of direct light a day
- Even moisture: soil that stays damp, never bone dry and never soggy
- Steady food: a rich mix plus a vegetable fertilizer fed during growth
- Time: about 60 to 70 days from transplant for early varieties
For the full picture of the crop in the ground, see my guide on how to grow cabbage.
What Can a Container Make Easier or Harder?
Pots make a few things easier. You start with fresh, clean potting mix, so soil diseases like clubroot have less of a foothold. You can also move the pot into shade during a warm spell or closer to the house before a hard freeze.
Fabric grow bags are a handy choice because they breathe and drain fast. A pot is also easy to cover with insect netting, which keeps cabbage worms off from day one.
The harder part is water. A pot can dry out in a single warm, windy afternoon, and cabbage reacts badly to dry spells. I’d plan on checking your container every day once temperatures climb.
What Size and Type of Container Works Best?
A container that holds 5 to 10 gallons and stands at least 12 inches deep is the right home for one cabbage plant. Drainage holes are a must, and the material affects how fast the pot dries.
How Much Room Does One Cabbage Plant Need?
In the ground, cabbage grows 12 to 24 inches apart. Small early types need about 12 inches, and big late types want 24 inches. Your pot should match that spread.
| Container size | Plants | Best for |
|---|---|---|
| 5 gallons, 12 inches deep | 1 | Compact early varieties |
| 10 gallons | 1 | Full-size or savoy heads |
| 15 to 20 gallons or larger | 2 to 3 | Compact varieties only |
Crowding two plants in a 5-gallon pot gives you two small, loose heads. If you plan a wider layout, the same logic applies to cabbage spacing in a raised bed, where about 18 inches suits most varieties.
Which Pots, Buckets and Grow Bags Drain Well?
Any container works if water flows out the bottom freely. Here’s how the common options compare:
- Fabric grow bags: drain and breathe well, and roots stay cooler. They dry fastest, so water more often.
- Plastic pots: hold moisture longer and are light to move. Dark colors heat up in full sun.
- 5-gallon buckets: cheap and sturdy. Drill four to six 1/2-inch holes in the bottom.
- Glazed ceramic: holds water well but gets heavy. Make sure there’s a real drainage hole.
- Unglazed terra cotta: dries out quickly, which is a poor match for thirsty cabbage.
Skip the gravel layer in the bottom. It raises the wet zone higher in the pot. Set the container on pot feet or a couple of bricks so the holes don’t sit in a puddle.
Which Cabbage Varieties Fit in Containers?
Compact, early varieties that head up in 60 to 70 days are the best picks for pots. Larger and slower cabbage varieties can work too, but they need bigger containers and a longer stretch of cool weather.
Compact Choices for a First Pot
My top picks for a first container are small, quick heirlooms:
- Early Jersey Wakefield: makes pointed, cone-shaped heads around 2 to 3 pounds in about 60 to 65 days. Its upright shape saves space.
- Golden Acre: forms small, round heads in roughly 60 to 65 days and handles light frost.
- Mini and baby types: many seed catalogs offer softball-size cabbages that mature in about 60 days. They’re a good fit for a 5-gallon pot.
Small early varieties produce a main head of about 1 to 3 pounds. That’s plenty for a couple of meals, and you can read more about cabbage yield per plant if you’re planning how many pots to fill.
When Does a Larger or Longer-Season Variety Make Sense?
Bigger varieties make sense when you have a 10-gallon container and a long, cool fall. Copenhagen Market is a classic round head that matures in about 70 days and fits a 10-gallon pot well.
Savoy cabbage (var. sabauda) has crinkled, tender leaves and takes about 80 to 90 days. It’s a good fall choice because cool nights sweeten it.
Late storage varieties run 80 to 100 days or more and can reach 4 to 8 pounds. I’d save those for in-ground beds, since they outgrow most pots.
What Potting Mix and Fertilizer Should You Use?
Use a quality potting mix blended with compost, and never fill a pot with garden soil. Cabbage wants rich, well-drained soil with a pH of 6.0 to 7.5, and about 6.5 to 6.8 is ideal.
How to Fill a Pot Without Compacting the Roots
Garden soil packs down hard in a container and drains poorly. Bagged potting soil stays loose and lets air reach the roots.
I like this simple blend:
- Start with about three parts potting mix.
- Stir in one part compost or aged manure.
- Add a slow-release vegetable fertilizer at the label rate.
- Moisten the mix before it goes in the pot.
Fill the pot loosely to within 1 to 2 inches of the rim. Tap the container on the ground once or twice to settle it, but don’t press the mix down with your fists.
When to Feed Before and During Head Formation
Cabbage is a heavy nitrogen feeder, and pot nutrients wash out with every watering. Plan on two extra feedings beyond what you mixed in at planting.
- About 3 weeks after transplanting: feed with a balanced liquid or granular vegetable fertilizer.
- When the head starts to form: feed once more at the label rate.
Between those, a dose of diluted liquid fertilizer every 2 to 3 weeks keeps a container plant growing. Go easy, though. Too much nitrogen late in the season pushes big outer leaves and a loose head.
When Should You Start Spring or Fall Cabbage?
Start spring cabbage indoors 6 to 8 weeks before your last spring frost, and start fall cabbage 10 to 12 weeks before your first fall frost. The goal is a head that matures in cool weather on either side of summer.
Starting Seeds and Transplanting for a Spring Crop
Sow seed 1/4 to 1/2 inch deep in small cells. At 65 to 75°F, seedlings come up in about 4 to 10 days.
Harden off seedlings for about a week by setting them outside for longer stretches each day. Move them into their containers 2 to 4 weeks before your last frost.
Watch for one catch. Young plants with stems as thick as a pencil that sit at 40 to 50°F for several weeks can bolt later.
A pot helps here, since you can pull it into a garage or against a warm wall during a long cold snap.
Planning Fall, Summer and Mild-Winter Crops
Fall is my favorite season for potted cabbage. Established plants handle hard frost into the low to mid 20s°F, and a light frost makes heads sweeter.
How timing shifts across the US:
- Northeast, Midwest and Pacific Northwest: start fall seed in early to mid summer, and grow spring cabbage as early as your frost dates allow.
- Southeast and Southwest (zones 8 to 10): grow cabbage through fall and winter, since summer cabbage struggles in the heat.
- Cool-summer areas: some gardeners near the coast or at high elevation can grow a summer crop with an early variety.
Winter cabbage in mild zones can stay in its pot outdoors. In colder zones, move pots against the house or into an unheated garage when nights drop below the low 20s°F.
How Do You Plant Cabbage and Give It Enough Sun?
Set one transplant in the center of each pot, plant it a little deeper than it grew, and place the container where it gets at least 6 hours of direct sun.
Shade slows heading badly, so this is one crop I wouldn’t tuck in a dim corner.
Sowing Seeds or Setting Out Transplants
Transplants give you a faster, surer start in a pot. To plant one:
- Water the seedling an hour before moving it.
- Dig a hole in the center of the filled pot.
- Set the plant so an inch or so of stem sits below the soil line.
- Firm the mix gently around the stem to remove air pockets.
- Water slowly until it runs from the bottom.
You can also sow seed right in a large pot. Plant three seeds 1/2 inch deep, then snip off the weaker two at the soil line once true leaves appear.
Choosing a Sunny Spot Without Overheating the Pot
Six to 8 hours of direct sun keeps cabbage heading well. If your yard only gets a few hours, look at my list of shade tolerant vegetables for better choices.
In early fall and late spring, full sun on a dark pot can cook the roots. A few fixes help:
- Pick light-colored containers.
- Group pots so they shade each other’s sides.
- Give plants afternoon shade when temps pass 80°F.
- Add 1 to 2 inches of straw or shredded leaves on top of the mix.
South- and west-facing balconies get the strongest afternoon heat. East-facing spots give morning sun and a cooler afternoon, which suits cabbage nicely.
How Do You Water Cabbage in a Pot?
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