The best plastic greenhouses to up your growing potential

Ohuhu's popular greenhouse is basically a plastic replica of a traditional square glass grow house. It's constructed from a coated alloy steel frame, reinforced plastic connectors, and a transparent, thickened PVC cover. Described by several reviewers as spacious and roomy, at 1.43 metres by 1.43, this is large enough to walk into via the zippered, roll-up door that you can secure with Velcro straps. The two side windows work the same way.

Unlike some options, this comes complete with shelving - six rack-style shelves on either side offering plenty of space for plants thanks to their 10-kilogram weight capacity. This comes with ropes and stakes and has an extended base you can put weights on.

Bramble offers three sizes of this shelf-style, small-scale plastic greenhouse. There are three-, four-, and five-tier versions, all of which have a 69cm by 49cm footprint. This makes this a patio-friendly choice, or if you can place it on the ground, you can use the U-shaped stakes provided on the frame's base to help keep it secure. This has a steel frame that boasts tool-free construction with many reviewers saying they managed to put it together without help from a second person.

The cover is transparent PVC with a grid design running through it to protect your plants from strong sun. This greenhouse has a roll-up door, a side ventilation flap, and two handy storage pockets on either side.

This Grow It greenhouse, with its stylish, arc-shaped design and vibrant green cover, is one of the more attractive options we're featuring. This makes it a good choice if you can only place it in full view of your garden. It has a wide, slimline design, measuring just over a metre in width with a depth of 45cm. This has a strong, powder-coated metal frame and a reinforced polyethylene cover that quickly zips open and closed for easy access.

Inside the greenhouse are four shelves, perfect for smaller pots and seed trays. The shelves are removable, so you can whip one out to give your plants more growing room if required. Reviewers consider this option good value for money and are pleasantly surprised by the quality for the price.

This Kingfisher greenhouse is incredibly well-rated and reviewed on Amazon with happy customer pleased with the price, ease of construction, and robust build quality. Although it's not the best-looking choice, it offers solid functionality for a very affordable price. This is perfect for anyone on a budget, or for gardeners that only want a greenhouse to use for certain times of the year - when they are germinating seeds, for example.

It offers plenty of shelf space to do just that, with four 50cm by 45cm growing platforms. The top shelf sits under the greenhouse's apex, so gives larger plants space to grow. This has a metal frame and a poly cover that features zips and the ability to roll it up.

This rectangular Display4Top option is similar to our overall staff pick, just larger, measuring in at a generous 1.43m wide by 2.16m long by 1.95m at its tallest point. This means there is plenty of space to be working away at planting, potting, watering, and general pottering inside the greenhouse with one reviewer confirming there is enough space for two people to work alongside each other. The larger footprint also allows for more handy shelving - there are eight wired shelves, six long shelves on either side and two smaller ones that run along the back wall.

This has an alloy steel frame and a PVC cover that's kept in place with internal ties. The zippered door rolls up and can be held in place with two ties.

You can get your agriculture going on with a serious, polytunnel-style plastic greenhouse. Ideal for more experienced gardeners that want to create a sheltered space to perfectly suit their growing needs, this comes as a frame and cover only, with no shelving included. This does mean, once constructed, you can tailor the inside of this greenhouse exactly as you want it, making the most of the two by three metre footprint.

The curved frame is made of metal and it's covered with extra-high density reinforced PE. This has multiple anchor points with ropes and stakes supplied. Despite its size, this boasts tool-free construction with one reviewer stating it only took them 20 minutes to construct.

This Outsunny mini greenhouse is a great half-height option for areas that wouldn't suit a taller, upright design, such as small courtyards or balconies. This does offer space for a fair few pots and trays though, thanks to its 180cm by 90cm by 90cm dimensions. While already being stable thanks to its low design, reviewers agree this has a sturdy build; a powder-coated steel frame with five cross bars and durable plastic connectors.

The anti-tear PE cover has a mesh design to offer better UV protection and stops birds - and cats, according to one reviewer - from pecking at or trampling your plants. Two sections of the cover roll up for those times you want to give your plants some fresh airflow. This can be used on the ground or over raised beds and containers.