June is the quietest sowing month of the year in New Zealand. Through most of the country, no vegetable sowing window is open at all. But it isn't empty everywhere. In Northland and Auckland, tomato, capsicum and eggplant seed goes into trays this month, two months ahead of the rest of the country. In Central Otago and the high country, June is the last month to plant garlic. Everywhere, citrus trees can still go in, and the winter harvest carries on.

Quick Answer: What You Can Plant Anywhere in NZ

The only crops in their planting window in every NZ zone this June are citrus trees:

  • Lemon, mandarin and orange (plant April–September), as potted nursery stock

All three are recorded as frost-tender, and June is inside the frost season everywhere. The planting-window notes specifically advise against midwinter planting in frosty areas. In the temperate and cool/mountain zones, that usually means waiting until late winter or spring. In the mild north, a sheltered June planting is more realistic. For variety choice, see the guides to lemon, mandarin and orange varieties.

Citrus harvest opens everywhere

June is when the citrus harvest picks up across the country. Lemon harvest opens in every zone (June–November), as does lime (June–August), and mandarin is still cropping (May–September). See lime varieties for temperate and sub-tropical NZ for which types suit your area.

Not sure which zone you're in? The NZ frost dates guide covers it by town.

Sub-Tropical: Northland, Auckland and Coastal Taranaki

This is the one part of the country with a real June sowing job. Tomato, capsicum and eggplant all open their sowing windows this month (June–September). In the temperate zone, tomato sowing doesn't start until August.

All three are raised indoors in trays, not sown outside. June is still inside this zone's May–September frost season, and none of them could survive outdoors yet. They're transplanted from August to October, after the last frost, and the planting-window notes say they crop through until the first autumn frost. Two crop-specific notes are worth acting on:

  • Capsicum — the notes recommend a propagator or glasshouse for germination this early in the season, rather than an unheated windowsill.
  • Eggplant — needs a longer warm season than tomato or capsicum to fruit well, so sow it at the front of the window.

The early start is why the sub-tropical summer harvest runs so long. Sub-tropical tomatoes crop from October to May, months longer than anywhere else in the country.

On the harvest side, pak choy and radish reach the end of their harvest windows this month. Feijoa and yacon run until July, Jerusalem artichoke until August, and the tamarillo harvest continues until November.

Temperate: Most of the Country

Across most of the country, no vegetable sowing window is open in June. Garlic closed in May, and coriander and onion don't open until July. Seed sown into cold soil now is more likely to rot than germinate, so resist the urge to force something in.

The harvest is quieter but real:

  • Pumpkin, pak choy and radish all reach the end of their harvest windows this month. Bring in any pumpkins still outside and cure them in a dry, airy spot before storing.
  • Beetroot, carrot and silverbeet sit through frost without protection and keep cropping. Silverbeet runs until July — see Growing Silverbeet Year-Round in NZ.
  • Jerusalem artichoke (to August) gets better as the cold sets in. Dig a few tubers at a time, since they keep better in the ground than lifted.

Garlic planted in April or May is putting down roots through the cold soil now. That chill is exactly what it needs, so leave it be. Weed around it by hand rather than hoeing, since young garlic roots sit close to the surface.

Cool/Mountain: Central Otago, Queenstown and the Central Plateau

In cool/mountain gardens, June is garlic's last planting month (May–June). If you haven't planted yet, don't leave it any later. Set cloves 5cm deep and 15cm apart in a sunny, free-draining, compost-enriched bed for a December–January harvest. The planting-window notes explain the late timing: hardneck garlic needs an extended cold spell below 10°C to form cloves, and planting near the winter solstice delivers it.

As covered in May's guide, the exact May–June window for this zone is our own recommendation rather than a supplier figure. Treat late June as the outer edge, and adjust for your altitude and frost pattern. The Canterbury garlic guide covers timing in a cold garden, and Rust and White Rot in NZ Garlic covers disease prevention.

The harvest list matches the temperate zone's. Pumpkin, pak choy and radish finish this month. Beetroot, carrot and silverbeet carry on, and Jerusalem artichoke runs until August.

Recommended Cultivars

These cultivar picks for June's plantings come from NZ suppliers:

  • Tomato (sub-tropical) — Roma, Copia, Costoluto Fiorentino (Kings Seeds NZ)
  • Garlic (cool/mountain) — Elephant, Rocombole Early Red, Rocombole Ruby Red (Koanga Institute)

There are no approved cultivar picks yet for capsicum, eggplant or the citrus trees.

June Garden Jobs, Anywhere in NZ

These are general winter jobs, not zone-sourced planting data:

  • Mulch new garlic. Straw or wood-chip mulch steadies soil temperature and keeps weeds down. After a hard frost, firm any heaved cloves back in.
  • Cover bare beds. Mulch or a green-manure crop protects soil structure over winter rain and feeds the soil for spring.
  • Do the off-season maintenance. Clean and sharpen tools, wash seed trays, turn the compost, and check stored crops for anything starting to spoil.
  • Order seed now. Coriander and onion open in July, and the big spring sowing rush follows. Sorting seed and bed space in June beats scrambling later.

Next Steps

For month-by-month sowing and harvest timing in your area, see the full planting calendar for your zone: