In this guide we’ll look at the best greenhouses for the UK market
I’ve compared design, size, build quality and cost
to give you my top recommendations.

What Are The Best Greenhouses?

  • Features
  • Polycarbonate panels
  • Sturdy aluminium frame
  • Good vents and gutters
  • Cost
  • Features
  • Twin polycarbonate panels
  • Sliding door
  • Video guides
  • Cost
  • Features
  • Hardwood construction
  • Twin walled polycarbonate glazing
  • Lifting roof panels for ventilation
  • Cost
  • Features
  • Inexpensive
  • 4 large shelves
  • Easily stored
  • Cost
  • Features
  • Inexpensive
  • 6 shelves
  • Easily stored
  • Cost

More Detailed Greenhouses Reviews

Palram Harmony 6x10 Green Greenhouse

The Palram Harmony 6×10 Green Greenhouse is the best greenhouse because it has durable polycarbonate panels, a sturdy aluminium frame and good vents and gutters.

This greenhouse features a sturdy aluminium frame that supports the greenhouse well and makes it very strong and durable. It is fully rust-resistant and weatherproof, allowing it to withstand any weather all year round. This feature makes this the best greenhouse for the UK market. The clear polycarbonate panels also contribute to making this the best greenhouse because they allow 90% of light to get through them to reach what you are growing inside. They are also very strong and difficult to break.

Part of what makes this the best greenhouse are the good vents and gutters. The vents allow you to control the temperature and prevent it from getting too hot inside your greenhouse. The sturdy gutters take water away and stop any flooding in and around your greenhouse. The greenhouse is also a good size so you can grow plenty of flowers and vegetables all year round.

Overall, this greenhouse is perfect for you if you want to have the best greenhouse that can withstand all weathers and allow you to grow lots of fruit, vegetables and flowers all year round.

Polycarbonate Greenhouse Large Walk-in Garden Growhouse

The Polycarbonate Greenhouse Large Walk-in Garden Growhouse is another good option because it has a nice sliding door, twin-wall polycarbonate panels and comes with a video guide that makes construction easy.

This greenhouse features a sliding door which takes up less space in your garden than a traditional opening door would. It also means if you leave it open by mistake or to cool the greenhouse down it won’t blow about or slam shut in strong winds. The twin polycarbonate panels allow 90% of light to reach inside the greenhouse. They are very strong and difficult to break, making your greenhouse hardwearing and long-lasting.

To help you with the construction of your greenhouse there is a full online video detailing each step of the construction process. This makes it very easy to build the greenhouse.

This is a great option if you want a midsized greenhouse with tough construction that is easy to assemble.

Rowlinson HWGROWST2 Hardwood Mini Greenhouse

The Rowlinson HWGROWST2 Hardwood Mini Greenhouse is another good option because it is made from quality hardwood, has two storage shelves and two lifting roof panels and features twin-walled polycarbonate glazing.

This beautiful mini greenhouse is constructed from FSC approved hardwood and will add a lovely feature to your garden. The greenhouse features two hardwood slatted shelves which allow for a surprising amount of growing space for this compact greenhouse. This helps to make it the best mini greenhouse as it allows you to grow a lot of plants in quite a small space. The top of the greenhouse features two lift-up panels. These can be locked into different upright positions to effectively control the temperature of the greenhouse.

The greenhouse features twin-walled polycarbonate glazing that is very strong and durable and allows lots of light to get to the plants. This model has a nice ribbed effect on the glazing that creates a nice aesthetic to the greenhouse.

Overall, this is a great option if you are looking for a compact greenhouse that still allows you to grow lots of plants and is also of made of good quality hardwood.

VonHaus 4 Tier Mini Plastic PVC Greenhouse

The VonHaus 4 Tier Mini Plastic PVC Greenhouse is another good choice because it’s inexpensive, has sturdy shelves and is easy to store.

This is a good inexpensive option making it a good choice if you don’t want to splash out on an expensive greenhouse. It has 4 large shelves that give you lots of room to grow plants in with ease.

The design allows it to be easily taken apart and stored which is perfect if you don’t want to have your greenhouse up all year round.

I think this option is perfect for you if you like to use a greenhouse to get plants started in the spring before transplanting them. Its inexpensive and can be stored easily when not in use. This helps make it the best small greenhouse.

VonHaus Compact Walk-In Greenhouse with 6 Shelves

The VonHaus Compact Walk-in Greenhouse is another good choice because it’s inexpensive, has 6 sturdy shelves and is easy to assemble and disassemble.

This low-cost greenhouse provides plenty of space for growing on the six shelves. It is a walk-in greenhouse so you can get inside and access all your plants easily. The greenhouse is very easy to assemble and disassemble making it great if you want to store it away during the winter months.

This is a great option if you want a reasonably large greenhouse that you can use a during certain times of the year and then store away easily when not in use.

Greenhouses Buyers Guide


The size of greenhouse you choose will depend on your gardening needs.

If you want a permanent greenhouse to grow things all year round, then the largest one you can fit into your garden is probably the way to go as this will allow you to grow as much as possible.

If you want a greenhouse to get plants started in the off season ready to be transplanted once temperatures increase, then a smaller option that can be easily stored when not needed is probably the way to go.


You will want your greenhouse to be durable so that it stands the test of time. Good quality frame materials will make your greenhouse more durable. A solid aluminium or wooden frame will make your greenhouse durable and weather resistant.


Ventilation allows greater control over the temperature of your greenhouse. If it gets too hot inside plants will begin to wilt or even die. Having good ventilation enables you to release some of the heat and adjust the ventilation to create the perfect temperature for the plants you want to grow.

Panel material

Polycarbonate panels are the best option for panel material. It’s a great material because it allows 90% of light through to get to your plants. It’s very strong allowing it to withstand knocks and bumps. It also looks a lot like glass in most cases helping with the aesthetic of your greenhouse.

The cheaper or storable options will normally be made of PVC. This is fine as it’s flexible and is part of what makes them very storable. It lets light through very well and can resist wind and tears.


Having a warranty gives you confidence that if anything goes wrong it will be replaced or fixed within that period. It also shows that the manufacturer has confidence in the materials and construction of your greenhouse.


How does a greenhouse work?

Greenhouses work by providing a few key things that plants need.

Firstly, by being made of glass or polycarbonate they allow the light to penetrate through and get to the plants. This allows the plants to use light to create their food.

Secondly, it creates a warm environment. It does this because when light hits a solid surface the surface takes some of the energy and turns it into heat. This type of heat will not pass through the greenhouse in the same way light does, therefore, it gets trapped inside. A combination of the light getting through and being warm and this transfer of light to heat allows the greenhouse to become very warm inside.

This means you have a warm and light environment all year round that is the perfect place for plants to grow.

What to grow in a greenhouse?

You can grow a variety of plants and vegetables in your greenhouse.

One advantage if a greenhouse is that you can start growing plants earlier in the season when it is still cold and frosty outside. By planting them inside a greenhouse earlier in the year you can give them a head start allowing them to be stronger and hardier and further along in their development once you transplant them.

There are many things that you can grow very successfully in a greenhouse that would not normally do very well in the British climate. Peppers and chillies can grow well in greenhouses. Tomatoes can be grown outside in the UK but if you leave them in your greenhouse you will end up with juicer and larger tomatoes thanks to the added heat. You can also grow many fruits such as melons and apricots in the warm environment of a greenhouse.

You can also use your greenhouse to overwinter tender plants and flowers that would not normally survive a British winter.

How to clean a greenhouse?

Winter is a good time to clean your greenhouse as it will be less full and there are fewer garden tasks to keep on top of in general.

Cleaning your greenhouse is important for several reasons. You should make sure the glass or polycarbonate panels are sparklingly clean. Keeping these clean allows the most amount of heat and light to enter the greenhouse. To clean them you can use any glass cleaner. You may need a stepladder to reach the top.

You will also need to clean the frame of the greenhouse and remove any moss and mould from both inside and out. Cleaning your greenhouse will make it last longer as there will be no moss or mould to trap moisture. In addition, removing mould spores is a part of the good hygiene you must complete to keep your plants healthy.

It’s also very important to clean the gutters if your greenhouse has them to ensure they don’t clog as this could cause leaks.

Your greenhouse provides a cosy place for your plants but it can also make a nice warm home for pests. You should thoroughly clean and disinfect the inside of your greenhouse to ensure there are no pests and diseases that could contaminate your plants.