Blossom end rot is a calcium-uptake disorder, not a disease. Learn how to spot it on tomatoes and capsicums and fix it with steadier watering and mulch.
Continue readingChoosing the Right Tomato Variety for a 2-Square-Metre Raised Bed
For a two-square-metre raised bed, start with a compact bush or dwarf tomato whose mature spread fits the space. A climbing tomato can also work if you have a firm support and time to train it. Choose by plant habit first, then fruit size: a cherry tomato can become a sprawling vine.
The right choice leaves room to water, pick and inspect leaves. Filling every gap with seedlings makes those jobs harder once the plants mature.
Which tomato type fits your bed?
Compare the descriptions on seed packets or nursery labels before choosing a variety by name. The RHS tomato guide distinguishes compact bush plants from taller cordon types that need training.
| Type | Why consider it? | What to check |
|---|---|---|
| Determinate or bush | A manageable option for gardeners who prefer less training | Mature width and support needs; a bush can still be broad |
| Dwarf or patio | Useful where height is limited | Actual dimensions and cropping habit; dwarf does not always mean determinate |
| Indeterminate or climbing | Uses vertical space and can provide repeated pickings | Support height, access for tying and room for foliage |
For a first attempt, plan around one plant, then consider a second only if the stated spacing and your bed shape allow it. This is a conservative layout suggestion, not a universal planting density. A long narrow bed offers different access from a square bed of the same area.
Choose fruit you will use. Cherry types suit frequent snacking, medium slicing types suit sandwiches, and paste types suit cooking. None of those fruit descriptions tells you how large the plant becomes.
How much soil depth and drainage matter
Measure the usable growing medium, rather than the height of the bed frame. An open-bottom bed over workable soil gives roots a different situation from a shallow planter sitting on paving.
Push a hand trowel into several spots. Look for compacted layers, substantial settling or water that remains pooled after watering. Correct those problems before buying plants. A raised frame alone does not guarantee drainage.
There is no single soil-depth figure that makes every tomato variety suitable. Match the variety’s growing guidance to the root space you actually have. Where that space is restricted, favour a compact plant and leave more of the bed available to it.
Use a suitable vegetable-growing medium with mature compost incorporated, rather than filling the bed entirely with compost. Install supports before roots spread. Leave access for checking soil moisture, because a densely planted surface can hide a dry root zone.
Heat-tolerant or frost-resistant: what should you choose?
Do not shop for a frost-resistant tomato as a way around cold weather. Tomatoes are frost-tender. An early-cropping variety may help fit a shorter season, but it still needs suitable planting conditions.
Use your climate to narrow the shortlist:
- Subtropical coastal Queensland: consider spring or autumn establishment, adjusting for your site’s heat and cold exposure. Inland and elevated gardens need their own frost check. The Queensland Government’s home-garden tomato guidance identifies spring and autumn as suitable growing seasons.
- Tropical Top End: use a dry-season plan. The NT Government tomato guide describes tomatoes as generally grown as a dry-season annual. Check local guidance elsewhere in tropical Australia.
- Temperate southern suburbs: establish outdoors in spring once local frost risk has passed and soil has warmed; coastal and inland sites differ.
- Tasmania and cool highlands: prioritise early maturity and wait for suitable warmth. The City of Hobart’s planting advice explains why a traditional calendar date needs checking against conditions.
Treat a supplier’s heat-tolerance description as a specific claim to check, not a guarantee of summer production. For nearby crops, use the month-by-month guide for warm-climate vegetable patches to plan around the same local conditions.
How do you choose disease-resistant varieties?
Look for resistance to a named disease rather than a broad promise of being trouble-free. Ask the supplier to explain any letter codes and confirm the description for that exact variety.
If a previous crop failed, identifying the problem is more useful than choosing resistance at random. Resistance to one disease does not establish protection against unrelated problems. University of Minnesota Extension explains how variety descriptions communicate disease resistance or tolerance.
Keep plants accessible, direct watering towards the soil and avoid a tangled canopy. A resistant variety still needs sensible growing conditions.
What harvest should you expect?
Determinate tomatoes tend to concentrate their crop, while indeterminate plants continue flowering and fruiting when conditions allow. Choose the first pattern for a more concentrated kitchen harvest, or the second for ongoing picking.
Skip kilogram promises for a bed this small. Sunlight, variety, weather, root space and care all affect the result. Compare maturity descriptions carefully: check whether a supplier counts days from sowing or transplanting before comparing two packets.
Record the planting date and first ripe fruit. That gives you useful local evidence for next season without treating a packet estimate as a deadline.
Which companions deserve the remaining space?
Keep companion planting modest. A basil plant near an accessible edge can be convenient for cooking, provided its mature growth leaves room around the tomato. Choose companions for harvest and layout rather than expecting them to prevent pests or improve flavour.
Put extra herbs in separate pots if the bed is already crowded. Our guide to herbs through hot Australian weather helps match those choices to conditions.
Before buying seedlings, read the Queensland guide to timing a tomato crop and settle your planting window. Then choose the plant whose size, cropping pattern and growing requirements fit the space you can actually give it.
Growing Tomatoes in Queensland: Timing Beats Everything
Down south, tomatoes are the classic spring crop — plant after the last frost, harvest through summer. Follow that advice in Queensland and you’ll do everything right and still lose: plants that romp along until December, then split fruit, drop flowers in the heat, collapse with fungal problems in the wet, and hand what’s left to fruit fly. In Queensland, the tomato is an autumn and winter crop. Get the timing right and everything else about growing them gets easier.
The two windows
Window one: autumn (roughly February to April). Plant as the worst summer humidity breaks. Plants establish in warm soil, flower and set fruit through the mild, drier months, and produce across winter into spring in frost-free areas. This is the main event for coastal Queensland — pest pressure and disease drop exactly as your plants hit their productive stretch.
Window two: late winter (roughly August to early September). The second chance. Planted now, tomatoes fruit in late spring, mostly ahead of the December humidity wall and ahead of the worst fruit fly months. This window is tighter — every week of delay pushes fruiting deeper into trouble — so early August beats late September comfortably.
The window to refuse: October–November. It feels right, garden centres are full of seedlings, and it’s how southern calendars are written. But count forward: flowers and ripening fruit land in December–February, which is peak humidity, peak storm damage and peak Queensland fruit fly, all at once. Some years you get lucky. Most years the crop feeds the flies.
Inland and elevated gardeners with real frost should shift toward the southern pattern — later winter planting after frost risk, and autumn plantings that finish before it. Timing is climate, not postcode.
Why the timing matters this much
Three Queensland realities gang up on mistimed tomatoes:
- Fruit fly. Queensland fruit fly stings developing fruit and its larvae ruin it from inside. Pressure is lowest roughly May through September — cool nights limit breeding — and highest in the warm wet months. Fruit that ripens in winter largely escapes; fruit that ripens in January is a target. (Exclusion netting is the gold-standard defence for warm-month fruit, and it’s getting its own guide; the pest overview sits in the pest hub.)
- Heat and fruit set. Very hot spells interfere with pollination and fruit set — flowers simply drop. Cooler-season flowering avoids the problem instead of fighting it.
- Humidity and disease. Wet leaves in warm nights are exactly what fungal and bacterial problems want. The dry-season grower waters at the base in the morning and mostly opts out of that fight.
Growing them well inside the window
The unglamorous fundamentals do the rest. Full sun (winter sun especially — plant where north-facing light lasts all day). Deep, rich soil or a genuinely large pot. Stake or cage at planting time, not after they sprawl. Water deeply and consistently at the base — irregular watering is the main cause of split fruit and blossom-end problems. Feed when flowering starts. Pick from the first blush of colour and ripen fruit on the bench if anything is attacking ripe fruit outside.
Variety-wise, cherry and small-fruited types are the forgiving choice in Queensland: faster to fruit, less prone to splitting, and less attractive time-on-the-vine for pests. Grafted or vigorous hybrids earn their price in the autumn window; heirloom beefsteaks are a project for the confident.
If your plants flower enthusiastically but fruit never follows — and it’s not scorching hot — you may be looking at a pollination issue rather than a timing one; the zucchini pollination guide explains the same mechanics that apply across the fruiting vegetables.
Plant by the calendar that matches this climate — the full month-by-month version is here — and Queensland becomes a genuinely great place to grow tomatoes. Just not in October.
What to Plant Now in Subtropical Australia: A Month-by-Month Calendar
In subtropical Australia — Brisbane, the Gold and Sunshine Coasts, and coastal Queensland down into northern NSW — the vegetable year is upside down compared with the calendars in most gardening books. Our hardest season is not winter; it’s the wet, humid heart of summer. The best planting happens in autumn and again in late winter, and a subtropical winter is a genuine growing season, not a rest.
If you take one thing from this page: autumn is the real spring here. Get that, and the rest of the calendar falls into place.
This calendar is written for the subtropics. Temperate gardeners (Sydney, Melbourne, Adelaide) should shift summer-crop planting later and winter planting earlier; tropical gardeners (FNQ, NT) largely swap “summer” for “wet season” and do their main growing in the dry. Where your microclimate differs — a frosty inland valley, a warm coastal strip — trust your local frost dates over any calendar, this one included.
The two big windows
Autumn (March–May). Soil is still warm, humidity and storm pressure fall away, and pest pressure drops with them. This is the moment for the crops that struggle in the wet heat: tomatoes, capsicum, beans, brassicas as the nights cool, carrots, beetroot, lettuce that won’t bolt. Most of the year’s food comes from what goes in now.
Late winter to early spring (August–September). The second chance. Warm-season crops sown now fruit in late spring before the worst humidity and before fruit fly pressure peaks in the wet months. Tomatoes planted in this window are a completely different proposition from tomatoes planted in October — the tomato timing guide explains why that month of difference decides the whole crop.
Month by month
Treat each entry as a window, not a deadline — local guides differ by a few weeks either side, and elevation or frost shifts things.
- September: last of the late-winter window. Beans, sweet corn, cucumber, zucchini, tomatoes (early in the month), capsicum, basil, and quick salad greens before the heat. If zucchini set flowers but no fruit later on, that’s usually pollination, not disease.
- October: heat-lovers only — eggplant, chilli, sweet potato, pumpkin family. Salad greens move to part shade.
- November–January: the survival months. Plant the tropical-adapted crops that enjoy the wet heat: snake beans, kangkong, Ceylon spinach, sweet potato, ginger and turmeric. This is a poor window for tomatoes and European salads, and an excellent one for building soil and keeping mulch up to everything. Watering technique matters most now — deep and early.
- February: the turn. Late February opens the autumn window in warmer years: first tomatoes and beans go in where storms allow.
- March–April: peak planting. Tomatoes, capsicum, beans, beetroot, carrots, all the leafy greens, first brassicas late in April as nights cool.
- May–June: the winter garden goes in: broccoli, cabbage, cauliflower, peas, broad beans, silverbeet, spinach, spring onions, radish, more carrots and lettuce.
- July: keep succession-planting the winter list; garlic finishes going in; this is the subtropics’ calm, productive season — mild days, few pests, low disease.
- August: the hinge month. Winter crops still produce while the first warm-season seeds (tomatoes under cover, beans late in the month) start the cycle again.
What this calendar refuses to pretend
No single Australian calendar is honest for the whole country — a Hobart January and a Brisbane January are different planets. Everything above is subtropical; where a crop is marginal we’ve said so rather than listing it anyway. And within the subtropics, fruit fly changes the maths for soft summer fruit: pressure is lowest roughly May to September and highest in the warm, wet months, which is exactly why the calendar leans so hard on autumn and winter. Netting and exclusion strategies get their own guide soon; until then, the tomato article covers the timing-first approach.
Start where you are: this month, the list above; next month, the next line. A subtropical garden planted with the calendar instead of against it is most of the battle won.
Related: Herbs That Survive an Australian Summer (and the Ones That Never Will).
Related: Growing Passionfruit in Australia: Planting to First Fruit.
Related: Easy Vegetables for First-Time Australian Gardeners (and the Ones to Skip).
Related: Citrus in Pots: Growing Lemons and Limes in Small Spaces.
Related: Winter Vegetables You Can Actually Plant in Subtropical Australia.
Related: Growing Ginger and Turmeric in a Subtropical Backyard.
Related: Strawberries in Australia: A Winter Crop in the Subtropics.
Related: Seasonal Herb Rotation for a 30-Square-Metre Kitchen Garden.
Related: Planning a Low-Maintenance Raised Bed for the Subtropical South Coast.
Related: Using a Portable Greenhouse to Grow Winter Vegetables in Victoria.
Related: Choosing the Right Tomato Variety for a 2-Square-Metre Raised Bed.