Three pots that actually work on a Brisbane balcony
A balcony in Brisbane can be a brilliant little garden or a place where herbs go to die. Most of the difference comes down to the container. Here are the three pot types I'd start with, and when each one makes sense.
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Why pot choice matters more in SEQ
South-East Queensland summers are long, hot and humid, and a lot of our rain arrives in heavy bursts between December and March. That puts potted plants under two opposite stresses: pots that bake and dry out by mid-afternoon on a west-facing balcony, and pots that sit waterlogged for days after a storm. A good container helps with both. It needs to drain freely, hold enough mix to buffer the heat, and not turn into an oven.
Black plastic pots in full sun can get hot enough to cook the roots near the edge. Small pots dry out fast. And anything without proper drainage holes becomes a swamp in the wet season. Keep those three problems in mind and the choices below make sense.
1. Fabric grow bags: the forgiving starter
Fabric grow bags are made from a thick, breathable felt-like material. Water drains through the sides as well as the base, and air reaches the roots, so it is genuinely hard to drown a plant in one. The fabric also cools a little as moisture evaporates from it, which helps on hot afternoons.
- Good for: basil, parsley, lettuce, spring onions, and later potatoes or sweet potatoes in the bigger sizes.
- Watch out for: they dry out faster than plastic, so check them daily in summer. Put a tray underneath if you have neighbours below.
- Size: a 25–40 litre bag is a sensible middle ground for herbs and leafy greens.
Look for a set of fabric grow bags with handles in the 25–40 litre range; the handles make it much easier to shift them into shade during a heatwave.
2. Self-watering planters: for busy weeks
A self-watering planter has a water reservoir in the base and a wicking system that draws moisture up into the mix as the plant needs it. If you work long or irregular hours, or go away for the weekend, this is the pot that keeps things alive while you're not looking.
- Good for: thirsty leafy herbs like basil, mint and Vietnamese mint, and salad greens.
- Watch out for: in the wet season, the reservoir plus heavy rain can keep the mix too wet. If the planter is exposed to rain, make sure the overflow hole is clear, or tip the reservoir out during a run of storms.
- Tip: choose a lighter colour so it doesn't heat up as much in full sun.
A self-watering planter with a water-level indicator takes the guesswork out: you can see at a glance when the reservoir needs a top-up.
3. A deep pot (30 cm or more): when you're ready for fruiting plants
Once your herbs are thriving you'll probably want to try chillies, capsicum, eggplant or a tomato. These plants need more root room and a steadier supply of water, so go for a pot at least 30 cm deep and wide, and bigger if you can manage it. More mix means more buffer against a 35°C day.
- Good for: chillies (which are very happy in Brisbane and often keep producing for more than one season), cherry tomatoes, dwarf citrus in a larger size.
- Watch out for: weight. A 40 cm pot full of wet mix is heavy, so check what your balcony can take and consider pot feet or a plant caddy.
- Material: thick plastic or glazed ceramic in a light colour. Terracotta looks lovely but dries out quickly in our summer.
A large plastic pot around 40 cm in a light colour is a good all-rounder. If it will sit on tiles or decking, raise it slightly on pot feet so it drains freely and doesn't stain the floor, or use a plant caddy with wheels for pots you'll want to move.
Which one should you buy first?
If you're new to it, start with herbs in a grow bag or a self-watering planter. Both are forgiving, and you'll learn how quickly your balcony dries out. Save the deep pot for your second round, ideally planted in late summer to autumn or late winter to early spring, when SEQ conditions suit fruiting vegetables best and fruit fly pressure is lower than at the height of summer.
Quick checklist before you buy any pot
- Does it have drainage holes? If not, don't use it for planting. Use it as an outer decorative pot instead.
- Is it light-coloured or insulated if it will sit in full afternoon sun?
- Is it big enough? For most plants, bigger is easier.
- Do you have a saucer or tray so the balcony below stays dry? Empty it after watering.