How to Grow Salad Greens in Containers

Updated June 2026

A shallow trough of mixed salad leaves ready to cut

The quickest payoff in container gardening. A shallow trough of leaves you cut again and again.

New Zealand note: Greens grow essentially year-round in most of New Zealand; winter growth just slows down.

Salad greens are the perfect crop for a small space and an impatient gardener. They grow fast, need only a shallow container, and a cut-and-come-again mix keeps giving for weeks from one sowing. If you want a quick win on a balcony, start here.

Containers and mix

Salad leaves are shallow-rooted, so a wide, shallow trough or pot 15 to 20 cm deep is plenty. Width matters more than depth, as more surface area means more leaves. Fill with a quality potting mix and compost, and make sure it drains.

What to grow

Loose-leaf lettuce, rocket, mizuna, mustard greens, baby spinach and Asian greens like tatsoi are all ideal for cut-and-come-again. Sow a mix, or a "mesclun" blend, for a varied salad bowl. Pick leafy, fast types over hearting lettuces, which take longer and need more room.

Sow and cut

Scatter seed thinly across the surface, cover lightly, and keep moist. Leaves are ready to start cutting in as little as three to four weeks. Harvest as cut-and-come-again, snip the outer leaves about 3 cm above the base and the plants keep regrowing for several more cuts. Sow a fresh trough every two to three weeks for a continuous supply.

Beat bolting with shade: salad greens bolt and turn bitter in heat. In summer, give them morning sun and afternoon shade, keep them well watered, and grow heat-tolerant and loose-leaf types. In the cool months they are nearly trouble-free.

Water and feed

Keep the mix consistently moist, as salad leaves are mostly water and turn bitter and tough if they dry out. A light liquid feed every couple of weeks keeps the leaves tender and the regrowth coming. Watch for slugs, snails and caterpillars, though up on a balcony you will have far fewer.

Catch problems before they cost you a crop

Track every bed in the Planting Season app, log what is going wrong, and get region-specific reminders so the same problem does not bite twice.

Open the App →

Frequently Asked Questions

What salad greens grow best in containers?

Loose-leaf lettuce, rocket, mizuna, mustard greens, baby spinach and Asian greens like tatsoi are ideal because they grow fast and regrow after cutting. Choose leafy cut-and-come-again types over hearting lettuces.

How deep does a container need to be for salad leaves?

Only 15 to 20 cm, as salad greens are shallow-rooted. A wide, shallow trough is better than a deep narrow pot because surface area, not depth, determines how many leaves you get.

How fast do salad greens grow in pots?

Quickly. Many cut-and-come-again leaves are ready to start picking in three to four weeks from sowing, and then keep regrowing for several more cuts. Sowing a fresh batch every two to three weeks gives a constant supply.

How do I harvest cut-and-come-again salad?

Snip the outer leaves about 3 cm above the base, leaving the centre to regrow, rather than pulling whole plants. You can take several harvests from one sowing this way before the plants tire and you resow.

Why does my container lettuce turn bitter?

Heat and water stress, which also make it bolt. Keep the mix consistently moist, give afternoon shade in summer, grow heat-tolerant loose-leaf types, and harvest young. Bitterness and bolting go together.

See also: How to Grow Lettuce and Why Lettuce Bolts

Get next month's planting calendar, free

One email a month with exactly what to plant in your region, plus seasonal tips and harvest reminders. No spam, and you can unsubscribe any time.