The top tower system followers you can buy

Choosing a tower system for growing at home

A tower system is a vertical growing unit that stacks planting pockets around a central column, usually feeding plants with recirculating water and nutrients rather than soil. For gardeners in south-east Queensland, where backyards are shrinking and summer storms can flatten garden beds, these compact towers have become a popular way to grow herbs, leafy greens and strawberries on a balcony or patio. Before comparing products, it helps to think about the geography of your own space.

Read your site like a map

Start by observing how sunlight moves across your balcony or yard through the day and across the seasons. In Brisbane the sun sits high in summer and lower to the north in winter, so a spot that is bright in December may be shaded by June. Most leafy crops do well with around six hours of light, but in a humid subtropical summer, afternoon shade can stop lettuce bolting and reduce water stress. Wind exposure matters too: tall towers on upper-floor balconies catch strong gusts, so look for a wide, stable base or a way to anchor the unit.

What to compare between systems

• Growing method: hydroponic towers use water and nutrient solution, while aeroponic designs mist the roots. Both need regular checks of water level and nutrient strength.
• Pump and power: most towers rely on a small pump on a timer, so you will need a safe, weather-protected power outlet nearby.
• Reservoir size: a larger reservoir buffers hot spells, when plants drink quickly and water warms up.
• Materials: UV-stabilised, food-safe plastics last longer under strong Queensland sun.
• Pocket count and spacing: more pockets is not always better if large plants crowd each other.

Climate tips for the subtropics

Warm reservoirs hold less oxygen and encourage algae, so keep the tank shaded or insulated during summer. Choose heat-tolerant varieties for the warmer months and save cool-season greens for autumn and winter, which are often the most productive growing seasons in the region. After heavy rain, check that runoff has not diluted or overflowed the reservoir.

If you enjoy connecting what grows where with local climate and landforms, our field trips and guides explore the soils, rainfall and microclimates that shape gardens across Queensland.