Walk-in Greenhouse vs Mini Greenhouse: Which is Better for Starting Plants

If you’re planning to buy a greenhouse, you’re probably wondering, “Walk-in greenhouse vs. mini greenhouse, which is better for starting plants?” The best option ultimately depends on what you need.

If you have a large backyard or if the cost isn’t an issue for you, you can consider getting a walk-in greenhouse. On the other hand, mini-greenhouses are great for those who just started greenhouse gardening or those who don’t have enough space for a walk-in greenhouse.

Walk-in Greenhouse vs Mini Greenhouse: Which is Better for Starting Plants

What is a Good Size for a Greenhouse?

There are three main sizes of greenhouses: mini, medium, and large.


Mini greenhouse

While there isn’t a fixed size for a small greenhouse, the most popular size is 6×8 ft. This gives you plenty of space to move around and place more plants if needed. If a 6×8 is too big for you, you can opt for a popup greenhouse or a tabletop greenhouse.

A mini greenhouse or an indoor greenhouse is a better option if you have very limited space or you don’t have enough outdoor space. It’s cute, fun, and economical. It’s also a great way to determine whether a greenhouse works for you before investing in a larger, more permanent one.


Medium greenhouse

The standard size for medium greenhouses is 8×12 feet. This option gives you more room to work with, so you’ll be able to grow more fruits, vegetables, and other plants. A medium greenhouse is a fantastic choice for those who are willing to spend more to grow more.


Large greenhouse

If you’re serious about greenhouse gardening and you have a lot of space, a large greenhouse is a great choice. The difference between a large and a medium greenhouse is that large greenhouses are wider, allowing you to maximize the entire space. Generally, large greenhouses are 10 ft. wide and 16 to 24 ft. tall.


How to Choose the Right Greenhouse for You?

Regardless of the size that you choose, buying a greenhouse is an investment. To choose the best one for you, here are other factors you need to consider:



Lean-to, traditional, and octagonal are three of the most popular greenhouse shapes. For more modern styles, you can go for a dome-shaped greenhouse.



Wooden frames are the most cost-effective yet durable material. If you prefer metal frames, you can try aluminum or steel. Aluminum is lightweight, but also durable. Plus, it’s resistant to rust. On the other hand, steel is heavier but sturdier, a better option for large greenhouses.



Glazing is the greenhouse cover that protects your plants. You have several options, including horticultural glass, toughened glass, polycarbonate plastic, etc.

If aesthetics is a major factor, glass is a great option for you. They’re durable, and you can easily replace them if broken. However, glass glazing is expensive.

For a more economical solution, polycarbonate plastic is cheaper and offers better insulation compared to glass. However, the plastic may pop out of the frames in strong winds. It’s better to have your greenhouse installed by a professional.



Before scouting for greenhouses, make sure to consider your budget. Plan carefully, know what you need, and list all the necessary materials so you won’t go beyond what you can afford.


Are Mini Greenhouses the Better Option?

As we’ve already established, the best greenhouse for you depends on your needs and preferences. However, mini-greenhouses are especially great for new gardeners or hobbyists who want to dabble into greenhouse gardening.

If you’re still on the fence, here are some of the reasons why you should get a mini greenhouse:


Best for gardeners with limited space

Not all of us have enough space to grow a full garden. If you want to grow your own fruits and vegetables, but you have limited space, a mini greenhouse is a perfect solution. You can place your mini greenhouse in your patios, decks, and even on your tables.


Extend your planting season

With a mini greenhouse, you can start planting even before the cold season begins. Once the weather warms, you can then transfer the plants in your greenhouse into your garden. By extending your planting season, you’ll harvest your plants earlier than usual.


Protect your plants from bad weather

The plants in your backyard are constantly exposed to bad weather. By keeping them inside your greenhouse, your plants will stay safe from heavy rain, strong winds, snow, and excessive heat.


Repel insects and critters

Certain insects like aphids and beetles love to munch on the leaves of your plants. Other animals like rabbits and deer also love to eat your crops. By keeping them in an enclosed space, you’ll protect your plants from pesky insects and critters.


Create an ideal climate

With a mini greenhouse, you can create an ideal indoor climate for your plants. This means that you’ll be able to plant warm-weather crops during winter, and vice versa.


Final Thoughts on Walk-in Greenhouse vs. Mini Greenhouse – Which is Better for Starting Plants

Walk-in greenhouse vs. mini greenhouse, which is better for starting plants? A mini greenhouse is a better option for new gardeners. You’ll enjoy the same benefits without shelling out thousands of dollars. Large greenhouses require a significant investment. Maintenance will also be time-consuming, and you’ll need a huge outdoor space for a walk-in greenhouse.


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