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Top-Rated Greenhouse Kits in Australia for 2024

A greenhouse lets you grow plants year-round, even in cold climates.

A greenhouse is the perfect place to start seeds and keep them protected from the elements until they’re ready to go outside.

They give you the ability to extend your growing season by several months, allowing you to get an early start on planting next year’s garden.

Whether you’re looking for a small portable greenhouse kit or something more substantial, this guide will help you find just what you need.

Best large greenhouse: Greenfingers 4M x 3M x 2M Greenhouse

This is a popular, affordable tunnel greenhouse that’s great for beginners and experienced gardeners alike.

The steel construction is easy to assemble and provides a sturdy structure, while the durable PE cover will keep your plants safe from frost and cold weather.

It features eight windows with insect screens, and a roll-up zipper door that provides easy access if you’re spending the day working with your plants.

Upgrade pick: Maze Walk in Polycarbonate Greenhouse

This Maze Greenhouse is a premium walk-in greenhouse, with crystal clear glazing that allows over 90% of light to pass through.

This greenhouse is perfect for hobbyists, gardeners, and farmers alike.

The rust-resistant aluminium frame is super-sturdy, while the hinged double door provides easy access.

The Maze Greenhouse comes with a 5 year warranty.

Best small greenhouse: Greenfingers 2M x 1.55M Greenhouse

This popular Greenfingers greenhouse is a fantastic product for the small-space gardener.

It is affordable, easy to install, and features eight plant shelves that are perfect for seedlings or young plants.

The pop-up zipper door makes it easy to access your plants while the removable PE cover keeps them safe from the elements. For strength and durability, the frame is made from powder-coated steel.

This 2m tall greenhouse provides standing room inside so you can work with your plants without having to crouch down.

Best mini portable greenhouse: Greenfingers Mini Green House

This mini-greenhouse features transparent PVC walls which are waterproof and tear-resistant.

Roll-up doors make it easy to access the 4 levels of shelving while a powder-coated steel frame provides strength and durability.

This mini greenhouse is great for people who need to grow their own herbs or seedlings, but don’t have the space or don’t want the hassle of a larger greenhouse.

Why use a greenhouse?

A greenhouse protects plants from the elements and from predators. It also allows you to grow plants year-round, even if the climate is too cold for outdoor growing.

Not only can you gain more control over the temperature, but you can use a variety of different soil types to fully customise the growing environment for each plant.

A greenhouse allows you to get an early start on planting next year’s garden, extending your growing season by several months.

Is glass or plastic better for a greenhouse?

There are many factors that influence whether a glass or plastic (polycarbonate) green house will be best for your situation.

In terms of insulation, polycarbonate (hard plastic) is considered to offer the best thermal efficiency, followed by glass, then plastic film.

In terms of maintenance, glass is almost always going to last longer. However, plastic is going to be easier to patch up or replace if damage occurs.

Another important consideration is that plastic greenhouses are generally much more affordable.

However, the main reason most people choose glass is simply because it looks much better.

If you plan on having your greenhouse as a feature of your backyard, then glass may be the way to go.

Are green or clear greenhouses better?

We all know how important sunlight is for helping our precious plants grow.

The colour of a greenhouse can play an important role in how much sunlight is able to enter the structure.

Naturally, clear glass or plastic is going to let in more light than green or another colour.

The right option for you will depend on the type of plants you are growing, your local climate, and where the greenhouse is positioned.

Choose green if you want to reduce the amount of light entering your greenhouse or clear if you want to maximise the amount of light your plants receive.

Is it cheaper to build or buy a greenhouse?

Greenhouses are generally made with a wood or aluminium frame and transparent glass or plastic walls.

In terms of whether it’s cheaper to DIY your own greenhouse or buy a kit, unfortunately, the answer is “it depends”.

In general, building a greenhouse from materials like plastic framing and sheeting is going to be cheaper than buying one.

However, there are many things to keep in mind when planning a green house.

These include:

  • Framing materials
  • Wall materials
  • Doors and windows
  • Drainage
  • Shelving
  • Shade cloths
  • Irrigation

The increase in affordable greenhouse kits on the market makes these an attractive option for many people.

Does a greenhouse need to be in full sun?

When choosing a location for your greenhouse, you should place it in an area that gets lots of sun and is free from cold wind.

According to the NSW Department of Primary Industries, the “orientation of the greenhouse is typically north-south. A lot of emphasis internationally is placed on orientation to maximise light interception in the greenhouse. This is not such an issue in Australia because our light levels are much higher.”

They also note that “you also need to take into consideration the shading effect of vegetative screens and windbreaks. Locating greenhouses against a tree line will result in lower yields because of reduced light levels. Greenhouse covering materials near trees will also become quite dirty, further reducing light transmission.”

FAQ

How do I keep my greenhouse warm?

Methods for keeping a greenhouse warm include adding extra insulation, installing heat-mats, using compost, and using thermal mass objects to store energy from the sun.

Is there a difference between greenhouse and hothouse?

A greenhouse is a structure with transparent walls and roof that provides plants with a controlled environment for optimal growth. A hothouse, on the other hand, is a greenhouse that is artificially heated to maintain a warmer environment. They are often used for tropical plants.

Photo of author

Steve Kropp

Based in Melbourne, Steve's passion is vegetable gardening, and he’s been writing about it for almost 5 years. He also loves all things DIY and is always looking for a new project. When not working on his own garden projects or blogging, Steve enjoys spending time with his family, cooking meals with produce harvested from his garden, and coaching his son’s footy team.

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