Greenhouses

Our greenhouse range covers walk-in tunnels, aluminium and polycarbonate kits, mini greenhouses and indoor grow tents. Whether you're working with a courtyard, a windy backyard or a spare corner for seedlings, there's a Green Fingers option sized to your space and growing goals.

How to choose a greenhouse for your garden

Start with your site, not the catalogue. Measure the footprint you can actually give up, check how many sun hours it gets, and note how exposed it is to wind. Those three things matter more than how many plants a greenhouse can technically hold.

Then think about what you want to grow. Seedlings and herbs need very little room. Year-round tomatoes, chillies and leafy greens want a walk-in. Match the frame and cover to your climate too. Light steel and PE handle seasonal protection. Aluminium with twin-wall polycarbonate (two panel layers with an insulating air gap) gives you stronger insulation and better UV control.

A practical note from experienced growers: the right greenhouse is the one you can reach into comfortably and anchor properly on your site, not the biggest one that'll fit. Leave room to walk, water and prune.

Walk-in tunnel greenhouses

Walk-in tunnels use a steel frame with a PE cover. They're the most affordable way to get usable growing volume, and they suit seasonal protection, bulk seedlings and light commercial use. The 4x3m walk-in tunnel is a solid starting size for a family vegie patch. The 6x4m steps up to serious year-round growing. The 9x3m suits long rows or a market garden. Tunnels catch the wind, so firm anchoring with ground pegs or sandbags is essential in exposed yards.

Aluminium and polycarbonate greenhouses

Aluminium kit greenhouses with twin-wall UV-resistant polycarbonate panels are the step up from a tunnel. The twin-wall construction (two layers of panel with an insulating air gap) holds heat better overnight and allows around 90% light transmission while reducing plant burn. Adjustable roof vents and sliding doors help manage summer heat. The range starts compact with the 1.9x1.9m aluminium greenhouse for small backyards and goes up to the 5.1x2.44m model for serious home growers who want room for benches and tall crops.

Mini greenhouses for small spaces

A mini greenhouse suits courtyards, balconies, side paths and renters. The raised 2.7x0.9x0.9m mini greenhouse works as a propagation station for seedlings and herbs, and it extends the growing season without claiming a full garden bed. Compact units heat up fast on sunny days, so open the cover or unzip the panels when temperatures climb to avoid cooking tender seedlings. For a small-space setup, pair a mini greenhouse with compact garden planters.

Grow tents for indoor growing

A 120x120x200cm grow tent gives you a controlled indoor environment for hydroponics or year-round growing in a spare room or garage. It includes fittings for fans, lights and filters, with zipped and velcro covers for easy access. A grow tent isn't a greenhouse substitute. It relies on artificial lighting and ventilation (sold separately) rather than sunlight, so plan your setup budget accordingly.

Greenhouse sizes explained

• Mini (under 3m long): best for seedlings, herbs and propagation. Suits balconies, courtyards and renters who need something movable.

• Medium walk-in (around 2 to 3m x 2m): fits mixed veg, tomatoes, chillies and year-round herbs. Good for a keen home grower with a standard backyard.

• Large tunnel (6m and over): handles bulk crops, overwintering and light commercial use. Leave about a quarter of the floor for paths, benches and watering.

To get the most out of a walk-in, combine it with raised beds inside or alongside.

Why shop with GoodBuyz

• Australian owned and Melbourne based with local support.

• Genuine stock with Australian warranty backing.

• 30-day change-of-mind returns on eligible unopened items.

• Free shipping over AUD 200 (bulky and partner-warehouse exclusions apply).

• Layby available on eligible orders.

Need somewhere to store the tools and bulky gear? Have a look at our garden sheds range.

FAQs

Is a polycarbonate greenhouse better than a plastic one?

Twin-wall polycarbonate generally outperforms single-layer PE plastic for insulation, UV protection and lifespan. Polycarbonate kits hold heat better overnight and resist yellowing. PE tunnels are lighter and cheaper, which suits seasonal use or larger footprints. The better choice depends on whether you want year-round growing or budget-friendly seasonal cover.

Do greenhouses need to be anchored?

Yes. Every greenhouse, from mini units to large tunnels, needs anchoring to the ground. Tunnel greenhouses use ground pegs, ropes or sandbags. Aluminium kits are usually bolted to a base, slab or timber frame. Skipping this step is the main reason backyard greenhouses collapse or lift in strong winds.

What can you grow in a greenhouse in Australia?

Most home growers use a greenhouse for tomatoes, chillies, cucumbers, capsicum, herbs, leafy greens and seedlings. In cooler regions, a greenhouse extends the warm-season window for heat-loving crops. In warmer zones, it protects cool-season greens from harsh sun. Keep plants in shape with the right pruners for pruning and training inside your greenhouse.

Does a greenhouse need council approval?

Most small backyard greenhouses are treated as exempt structures, but rules vary by council, zone and size. Larger tunnels, permanent slab foundations or structures close to boundaries may need approval. Check with your local council before buying a large kit. This is general guidance only and not legal advice.

How do you stop a greenhouse overheating in summer?

Open roof vents and doors on hot days, add shade cloth over the roof, and water the floor to lift humidity and cool the air. Aluminium kits with adjustable roof vents handle summer heat better than sealed tunnels. For mini greenhouses, unzip or lift the cover entirely on days above 30 degrees.

Do you deliver greenhouses across Australia?

Yes, we deliver nationwide. Many greenhouses ship from partner warehouses rather than our Melbourne distribution centre, so delivery times vary by product and postcode. Some bulky items have delivery exclusions or surcharges to remote areas. Check the shipping details on each product page before you order.

You might also like

• Garden beds range

• Potting benches and shelving

• Watering and irrigation

• Garden tools and pruners