Short answer: July reopens the sowing calendar after June's blank month, but only just — coriander and onion are the two windows now open, both cold-tolerant crops suited to a winter start. The bigger story this month is harvest: beetroot, carrot, silverbeet and jerusalem artichoke are all in active cropping, with jerusalem artichoke into its first full month.

The NZ Temperate July Growing Context

July sits deep in the temperate zone's frost period (April through November) — among the coldest months of the run, with soil slow to warm and growth minimal across the board. Two sowing windows reopen regardless, and four crops keep the harvest list from going quiet.

Typical July conditions in temperate gardens:

  • Deep winter soil, still cold and slow to warm
  • Two sowing windows reopen: coriander and onion
  • Four crops in active harvest, including jerusalem artichoke's first full month
  • Regular hard frosts continue
  • More maintenance and planning than active sowing

What to Sow This Month

Coriander

Coriander's sowing window runs July through November in the temperate zone, reopening this month after being closed since May. Direct sow rather than raising in trays, and keep up a succession-sowing rhythm every few weeks — cool-season sowings bolt less readily than summer ones, but staggering still spreads the harvest instead of bunching it all at once. Egmont also lists a second Mar-Apr sowing window, not modelled here.

Cultivar picks: Picante (Kings Seeds NZ), direct sown, suited to a wide spread of seasons including early starts; or NZH (Koanga Institute), whose own growing notes suggest raising in trays and pricking out at 2.5cm spacing if you'd rather transplant than direct sow.

Onion

Onion's sowing window opens for the first time all year in July, running through September. Direct sow — this is a long-season crop at roughly 160–200 days to maturity — and avoid high-nitrogen soil, which pushes leafy growth at the expense of bulbing. No approved cultivar picks are in our catalogue for onion yet; check what your usual supplier has in stock for a NZ-suited long-day type.

Not yet: Broccoli and Kale

Both open next month. Sowing brassicas into July's cold, slow soil means seedlings sit and stall rather than establishing — wait for August rather than getting ahead of the data.

What to Harvest This Month

July's harvest list is short but real, and one crop is only just getting started:

  • Jerusalem Artichoke — into its first full month of harvest. Dig tubers as you need them rather than all at once; they store best left exactly where they grew, and the cold this month is improving their flavour and colour, not threatening them.
  • Beetroot and Carrot — both comfortably within their long harvest windows, tolerating frost without protection.
  • Silverbeet — one of the few crops that keeps producing right through winter once established. Pick outer leaves for a continuous harvest.

Garden Jobs for July

Give coriander and onion the best start

Both new sowings are going into cold soil at the coldest point of the year. A cloche or cold frame speeds germination for coriander; for onion, the bigger lever is avoiding recently-manured or high-nitrogen ground, which delays bulbing later in the season.

Dig jerusalem artichoke as you need it, not all at once

With the harvest window newly open, it's tempting to clear the bed in one go. Leave the rest in the ground — it keeps better there than in a box, and each tuber left behind is next season's replanting stock anyway.

Use the last quiet weeks before the August rush

Broccoli and kale open next month, the first proper sowing rush since May closed out. Order seed, prepare trays, and clear or compost any beds that will take the new sowings rather than leaving that work for August itself.

Keep an eye on stored crops

Anything cured and stored from the pumpkin harvest, or roots lifted early, is worth a check this month — cold, damp conditions are exactly when rot gets a foothold in storage.

Common July Mistakes

Sowing broccoli or kale a month early

Both windows open in August, not July. Cold, slow soil this month means early-sown brassica seedlings stall rather than get a head start.

Treating July as identical to June

June had zero sowing windows open; July has two. Skipping coriander and onion because "nothing's happening this time of year" costs a full month on both crops' eventual harvest.

Digging up the whole jerusalem artichoke bed in one visit

The tubers store better in the ground than in a bucket. Lift only what's needed for the next few meals and leave the rest for later in winter.

Looking Ahead

August opens the sowing windows for broccoli and kale, the temperate zone's classic spring brassicas and the first proper sowing rush since May. Coriander and onion, sown this month, will still be establishing; jerusalem artichoke's harvest carries on regardless of what else is happening in the bed.

Ready for next month? See *What to Plant in NZ Temperate in August*, or explore the full NZ Temperate Planting Calendar →.