The best greenhouses to help your plants thrive all year round

Looking to up your plant growth? Invest in a greenhouse for a great addition to your garden or allotment.

best greenhouses - modern gardens

by Caitlin Casey |

If you're getting your green fingers stuck into growing new plants, herbs, and produce in your summer planters, the likelihood is that a greenhouse may have crossed your mind at some point.

These houses - typically made of glass and wood or steel - are like a warm cosy blanket for your greenery, giving them enough light and warmth to grow without facing the tough UV rays or unpredictable British weather. Especially when it comes to those frosty winter months, these greenhouses can be a saviour to all us gardeners.

The thing is though, there are so many choices of greenhouses out there. You can get one that is huge and barn-like or one tiny enough to fit a few plants. Which one's the best for you? Well, we've covered everything in our greenhouse guide below - including the best greenhouses you can buy right now.

Best greenhouses UK 2023

Best hexagonal cover greenhouse

On Sale

Outsunny Hexagon Walk In Garden GreenhouseAmazon
Price: £57.99 (was £96.99)


This hexagonal greenhouse makes it even easier to look after your plant family with spacious


  • Portable
  • Large capacity and great storage
  • Shape gives easier access to your plants


  • Take care to position it where the wind won't catch it

Best entry-level greenhouse

Palram Harmony 6x4 Polycarbonate Apex GreenhouseB&Q


Looking for more for your money? This B&Q Palram greenhouse is a good all-around option if you


  • Easy to follow instructions for assembly
  • Fairly sturdy
  • A great entry-level all-rounder


  • A little difficult to assemble single-handed

Best luxury greenhouse

Crane Garden Buildings 2.4 x 3m Greenhouse, FSC-certified (Scandinavian Redwood), SageJohn Lewis


If you're looking to splash out and buy a greenhouse that is stylish, sturdy and will last for


  • Made from high quality materials
  • It will be assembled for you
  • Beautiful style fit for any modern garden


  • Expensive

Best low-price greenhouse

Kingfisher GHPRO Premium 4 Tier Greenhouse

Rrp: £16.90

Price: £16.90


Do you just want a greenhouse that does the job? This Kingfisher greenhouse is a fantastic option


  • Budget option
  • Ideal for balconies or small gardens


  • Lightweight so needs weighing down

Best barn greenhouse

Rion Grand Gardner 8x20 Acrylic Barn GreenhouseB&Q
Price: £3,472


Planning to use a lot of space in a greenhouse? This Rion Grand acrylic greenhouse is barn-shaped


  • Enormous capacity
  • Well-ventilated


  • Assembly required

Best cathedral greenhouse

Palram - Canopia Victory 12x10 Polycarbonate Cathedral GreenhouseB&Q
Price: £1,681


If you don't want something as large as the barn greenhouse, but still want a big greenhouse with


  • Attractive shape
  • Large capacity
  • Good for medium sized gardens


  • Position in a sheltered spot to avoid damage from high winds

Best greenhouse for beginners

Palram - Canopia Harmony Silver Greenhouse - 6 x 4ftArgos


This compact greenhouse is big enough to fit all of your gardening plans but is small enough to


  • Polycarbonate glazing is a good alternative to glass
  • Competitively priced
  • Classic, adjustable and virtually unbreakable


  • Some reviews commented they had difficulty assembling the greenhouse

Our Verdict

We choose the Palram Canopia Harmony Silver Greenhouse as it ticks all the boxes in terms of being sturdy, spacious and well priced. We're particularly impressed with the polycarbonate glazing which blocks harmful UV rays whilst allowing 90 per cent light transmission. The panels offer insulation in winter and are a more durable alternative to glass.


What type of greenhouse should I get?

There are lots of elements to factor in when you want to start looking for a greenhouse. What size can you fit in your garden? How much can you afford? Do you want a static greenhouse or one that's easily covered and uncovered?

With all of this in mind, there are a few different types of greenhouses you should look towards.

Wooden or steel bases: Whereas steel bases are much easier to put together, wooden frames for greenhouses can look more traditional and maybe a more stylish choice - this will make them more expensive, though.

Plastic-covered: Want ease and a cheaper choice? Plastic-covered greenhouses are a great option that often has zippers and is easily removed for a lower price.

Shape: You'll have to think about the shape and size of your greenhouse. You can get traditional gable greenhouses easily, but lean-to options are often smaller and just as effective if you have a smaller garden. Then you have arching, cathedral, and barn greenhouses too, just to name a few. This all depends on what you're looking for in your greenhouse.

How much to spend on a greenhouse?

This all depends on what materials you want, how many features you want and the choice of size for your greenhouse.

Greenhouses can start anywhere from £30 to over £10,000 depending on what you buy and design, so there's a lot to think about.

For instance, plastic, steel, and wooden frames can be cheaper if they're smaller in size, but they may not be as sturdy if you buy them so cheaply. On the other hand, you can spend lots of money on a specially-designed greenhouse with doors and windows, but you may find this isn't necessary for your budget.

We're all about the value you get for your money, so you'll want to do full research into what you're buying before you get it.

Where can I buy a greenhouse?

Lots of garden centres and outdoor shops will have a great range of greenhouses. Of course, you can also get a great selection easily on Amazon.

If you're looking for your greenhouse we recommend choosing a classic trusted shop like B&Q or Wickes. John Lewis also comes in handy for more expensive greenhouses that can be built for you and Aldi has some more affordable options as part of their garden special buys. We've hunted down the best choices from all these sites below.

Where should I position my greenhouse?

When choosing where to site your greenhouse, you need to consider various factors to make sure it's in the optimal place for plant growth and you.

You might have an ideal space in mind but it's worth considering the below:
• Position your greenhouse in the sunniest part of your garden. This is paramount for getting the most out of your greenhouse. The best position for this would be to have your greenhouse south-facing where possible or, failing that, east side to maximise light during the winter

• Putting your greenhouse in a space that will be sheltered from high winds or storms. This is great for the long-term maintenance and structural integrity of your greenhouse

• Position your greenhouse near a source of water or electricity. This is ideal for easy watering and providing additional heat in the cooler seasons if your sun exposure is limited

• Make sure to build on level ground with good foundations. Building on a slope will create complications with pots potentially rolling off the inside staging!

• Leave space around your greenhouse. This will make for an easier installation and make it easier to replace any broken panes later down the line.

Best DIY tools for undertaking your garden projects

Outdoor patio heaters to warm up a chilly alfresco evening

Garden hammocks perfect for instant relaxation outdoors


Discover everything you need to know to make your outside space look fantastic, quickly and

Caitlin Casey is a Senior Writer for Modern Gardens, heat, Closer, and Grazia. She covers shopping, women’s lifestyle, popular culture as well as all things trending.

Just so you know, whilst we may receive a commission or other compensation from the links on this website, we never allow this to influence product selections - read why you should trust us