When to Plant Beans in NZ: Growing Green Beans by Region

Updated October 2026

Beans are one of the easiest and most rewarding crops in the New Zealand garden. A single packet of seed sown straight into warm soil will feed a family for weeks, and the plants quietly improve your soil while they grow by fixing nitrogen at their roots.

There are two broad camps. Bush beans stay knee high, need no support, and crop heavily over a short window, so they are perfect for succession sowing and small spaces. Climbing and runner beans scramble up a trellis, take a little longer to start, then crop right through to autumn.

The golden rule everywhere in New Zealand is warmth. Beans hate cold, wet ground, so wait until the soil has warmed before sowing, earlier in the north and later in the cool south.

What it looks like as it grows

🌱 Plant profile: Beans (bush), with sowing times for your region, companion plants and common pests.

Bush vs climbing bean selector

Pick a bean type and your climate to see the support, spacing and sowing timing that suits your patch.

Bean type Bush (dwarf, no support) Climbing (pole bean) Scarlet runner

Your climate Warm north (Northland, Auckland, Waikato, BoP) Temperate (Wellington, Nelson, Marlborough) Cool south (Canterbury, Otago, Southland, Central Otago)

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When to Plant Beans in Your Region

Beans are sown direct once the soil has warmed. These are the sowing months for bush beans in each region from our planting data, and the bean selector on this page uses the same months for climbing and runner beans. Each region links to its vegetable planting calendar, and the Bean plant page has spacing, companions and care notes for your region.

The north has the longest season. Northland, Auckland, Waikato and the Bay of Plenty sow from October to February, and Wellington and Nelson and Marlborough from November to February. The central North Island and Canterbury sow in November and December, and Otago, Southland and Central Otago wait until December, when the soil is reliably warm. Seed sown into cold, wet soil rots instead of sprouting, so if the soil is still cold at the start of your window, wait a little longer.

Position and Soil

Beans want full sun, at least six hours a day, and shelter from strong wind that can snap young climbers and knock flowers off. Give them a free-draining bed with plenty of compost dug through. They are not heavy feeders, so avoid piling on fresh nitrogen, which pushes lush leaf at the expense of pods. A soil pH around 6.0 to 6.8 is ideal.

Sowing

Always sow direct where the plants will grow. Beans dislike root disturbance, so they rarely transplant well. Push seed about 3cm deep into warm, moist soil and water once, then hold off until the seedlings appear to avoid rot. Soil needs to be at least 15C, so use the selector above for the right month in your region. For a steady supply of bush beans, sow a fresh short row every three weeks through your sowing window.

How to grow green beans, step by step

1. Wait for your sowing month in the table above and for the soil to warm past about 15C.
2. Choose a spot in full sun, sheltered from strong wind, and dig in compost. Skip high-nitrogen fertiliser.
3. For climbing or runner beans, put the trellis, teepee or netting in before you sow.
4. Push the seed about 3 cm deep where the plants will grow, water once, and hold off until the seedlings appear, which takes about 8 days in warm soil.
5. Keep the soil evenly moist once flowering starts, water at the base, and mulch to hold the moisture in.
6. Pick the pods young, every few days, to keep the plants producing.

Spacing

Sow bush beans 10 to 15cm apart in rows about 45cm apart. Climbing and runner beans need 15 to 20cm between plants, set at the base of a sturdy 1.8 to 2m trellis, teepee or netting. Put the support in before or at sowing so you do not disturb the roots later.

Watering and Feeding

Keep the soil evenly moist, especially once flowering starts, as dry spells at this stage cause flowers to drop and pods to come up short and stringy. Water at the base in the morning and mulch to hold moisture. Beans feed themselves with nitrogen, so a light side dressing of compost is all they need. A potassium-rich feed once flowering begins helps pods fill.

Growing Beans in Pots

Bush beans are the easiest beans for pots, because they stay knee high and need no support. Our plant data calls for a pot at least 30 cm deep, and climbing beans need a larger pot with a tall teepee or trellis put in at sowing time. Use a free-draining potting mix, set the pot in full sun out of strong wind, and sow the seed straight into the pot about 3 cm deep, as beans dislike being transplanted.

Pots dry out faster than garden beds, and dry spells at flowering make the flowers drop, so keep the mix evenly moist from the first flowers on. Go light on nitrogen, as beans fix their own, and favour a potassium feed for pods. Our beans in pots guide compares bush and climbing types for containers.

Common Problems

Watch for aphids clustering on shoot tips, green vegetable bug on the pods, and slugs on young seedlings. Seeds that rot instead of sprouting were almost always sown into cold, wet soil. Flowers that fall without setting pods usually mean hot dry winds at flowering, so keep the water and mulch up. See our NZ pest and disease guide for organic control.

How Long Do Beans Take to Grow?

Bush beans take about 65 days from sowing to the first pods in our plant data, a little over 9 weeks, and the seedlings come up in about 8 days in soil between 18 and 30 degrees Celsius. Climbing and runner beans take longer, around 75 to 90 days, but then crop over a longer season. On those figures, bush beans sown in October are picking from about December, and a December sowing in Otago or Central Otago is ready from about February.

When and How to Pick Beans

Pick beans young and often, while the pods snap cleanly and before the seeds bulge through. Regular picking is the single best thing you can do, as it tells the plant to keep flowering. Bush beans are usually ready around 65 days from sowing, climbing and runner beans from 75 to 90 days. At the end of the season cut the plants off at ground level and leave the roots in the soil to feed the next crop.

Snap or pinch the pods off the plant. Picked beans keep in a bag in the fridge for up to 4 days, and they blanch and freeze very well, which is the easiest way to deal with a glut; our freezing the harvest guide shows how.

Best bean varieties for NZ

Companion planting

Beans grow happily with corn, carrots, cucumber, marigold and nasturtium. Keep them away from onions, garlic and other alliums, which can check their growth.