June is a turning point rather than a quiet mid-winter month here: tomato, capsicum and eggplant all move onto the sowing list, started indoors a full two months before temperate and cool/mountain gardeners even begin theirs in August. It's the same logic behind this zone's early garlic and earlier climbing beans — a shorter frost season means the whole tender-crop calendar shifts forward.

Quick Answer: What to Sow Now

Six crops are open for sowing this June: capsicum, eggplant, lemon, mandarin, orange and tomato.

Tomato, Capsicum and Eggplant Start Indoors Now

All three of this month's new arrivals follow the same pattern: raised in trays rather than direct sown, with a June–September sowing window here against an August–November window in the temperate and cool/mountain zones — two months earlier, start to finish. Transplanting happens August–October once frost risk has passed, and all three crop through until the first autumn frost cuts them down.

Eggplant needs the longest run of warm weather of the three to fruit well, so getting it started at the front of this window matters more for eggplant than for tomato or capsicum. Capsicum's own sourced notes recommend a propagator or glasshouse for germination this early in the season — worth setting up before sowing rather than relying on an unheated windowsill, since June is still solidly inside this zone's frost window even though these seedlings won't go outdoors for months yet.

Two Kings Seeds NZ and Koanga Institute tomato varieties are sourced for NZ gardens generally: Albenga Oxheart and Alma, the latter needing 50cm garden spacing in two rows per metre-wide bed and staking once established. No capsicum or eggplant cultivars are approved for this site yet, so choice there comes down to what your local nursery or supplier actually stocks.

Citrus, Still an Option

Lemon, mandarin and orange remain inside their April–September planting window this month, going in as potted nursery stock. Best Lemon, Best Mandarin and Best Orange Varieties have the cultivar-level detail if you're still deciding.

Why Bother Starting So Early

It's a fair question if you're used to a temperate or cool/mountain calendar: why sow tomato, capsicum and eggplant two months before those zones do, only to still wait until August–October to transplant either way? The answer is what happens after transplanting, not before it. Because this zone's plants go outside earlier relative to its own frost window closing, they get a longer run of warm growing weeks before the crop even starts fruiting — the harvest windows for all three run further into the following winter here than they do further south, and that gap traces directly back to June's earlier sowing, not to anything different about how the plants are grown once they're outdoors.

Also Harvestable This Month

Lime's harvest window opens this June and runs through to August — see Best Lime Varieties for which cultivar that covers. Beetroot, carrot, feijoa, Jerusalem artichoke, pak choy, radish, silverbeet, tamarillo and yacon are all still cropping too.

Timing Notes for Sub-Tropical Gardens

June sits squarely inside this zone's May–September frost window, which is exactly why tomato, capsicum and eggplant all go in as trays rather than direct into the ground this month — none of the three could survive outdoors yet. Starting them now, well ahead of transplanting, is what lets this zone's shorter frost season translate into an earlier harvest rather than just a compressed one.

That's a useful way to think about most of what's frost-tender in this zone's calendar generally: the frost window itself is short compared with the rest of the country, but it still has to be planned around properly while it's open. Trays started indoors this month won't be exposed to any of it — they're timed to go outside in August and September, once the risk has genuinely passed rather than just eased.

Recommended Cultivars

  • Tomato — Albenga Oxheart (Kings Seeds NZ), Alma (Koanga Institute)

No approved cultivar picks are recorded yet for capsicum, eggplant, lemon, mandarin or orange in this zone's sourcing.

Know your zone? Explore the full NZ Sub-Tropical Planting Calendar for month-by-month sowing and harvest timing.