Best Cold Frame Greenhouses of 2025

Steven Taylor Avatar
Steven Taylor
Last Updated: Jan 3, 2025

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Cold frame greenhouses are an excellent option for gardeners who want to extend their growing season and protect their plants from harsh weather conditions. These simple structures are made of a sturdy frame and clear panels that allow sunlight to pass through while trapping heat inside. They can be used to start seedlings early in the spring, grow cool-season crops like lettuce and spinach, or even keep tender plants alive through the winter. Cold frame greenhouses are easy to set up and maintain, and they are a cost-effective alternative to traditional greenhouse structures. Whether you're an experienced gardener or just starting out, a cold frame greenhouse can help you get the most out of your growing season.

At a Glance: Our Top Picks

IDZO Fir Wood Cold Frame Greenhouse Cover #TOP 1
IDZO Fir Wood Cold Frame Greenhouse
ftb score rating icon 9.8
HAPPYGRILL Mini Wooden Greenhouse Cover #TOP 2
HAPPYGRILL Mini Wooden Greenhouse
ftb score rating icon 9.7
MCombo Portable Wooden Greenhouse with Openable Roofs and Extra Storage Shelf Cover #TOP 3
MCombo Portable Wooden Greenhouse with Openable Roofs and Extra Storage Shelf
ftb score rating icon 9.5

Top 10 Cold Frame Greenhouses

#TOP 1

IDZO Fir Wood Cold Frame Greenhouse

KGAQ
Brown
IDZO Fir Wood Cold Frame Greenhouse Cover
IDZO Fir Wood Cold Frame Greenhouse for Outdoors, 2-Tier Greenhouse Cabinet with Transparent Polycarbonate Sheet & Foldable Top Creates an Ideal Environment for Various Plant Growth, Easy Assembly

The IDZO Greenhouse Cabinet is designed to create the perfect environment for your plants. The combination of wax oiled fir wood and transparent polycarbonate helps maintain an ideal temperature, ensuring your plants are protected during colder months. With sturdy shelves that can hold up to 20 pounds each, you can grow a variety of plants without worry. The magnetic door catch and foldable top allow for easy ventilation control, making it convenient for you to manage your plants' needs. Plus, assembly is a breeze, letting you set it up quickly and move it as needed.

What We Like
Temperature regulation
Sturdy construction
Easy ventilation control
Simple assembly
#TOP 2

HAPPYGRILL Mini Wooden Greenhouse

HG1409
Natural
HAPPYGRILL Mini Wooden Greenhouse Cover
Happygrill Cold Frame Greenhouse, Mini Wooden Greenhouse Raised Flower Planter Shelf w/Transparent Openable Roof, Double Doors & 3 Tier Shelves, Small Greenhouse for Indoor Outdoor Garden Yard Balcony

The HAPPYGRILL Mini Greenhouse is designed to enhance your gardening experience. With its double doors featuring easy-grip handles, you can effortlessly access your plants. The tilted roof allows for quick water drainage, preventing accumulation during rainy days and ensuring good ventilation. Made from transparent polycarbonate panels, it provides all-weather protection and maintains a stable temperature for optimal plant growth. Additionally, the three adjustable shelves let you organize your gardening tools and plants according to their heights, making your gardening space more efficient and tidy.

What We Like
Easy access with double doors
Quick drainage with tilted roof
All-weather plant protection
Adjustable shelving for organization
#TOP 3

MCombo Portable Wooden Greenhouse with Openable Roofs and Extra Storage Shelf

Natural
Nartual
MCombo Portable Wooden Greenhouse with Openable Roofs and Extra Storage Shelf Cover
MCombo Cold Frame Greenhouse, Portable Wooden Greenhouse Raised Potted Plant Protection Box with Shelf for Outdoor Indoor Use, 0266 (Natural)

The MCombo Cold Frame Greenhouse is a great addition to any indoor or outdoor space for plant lovers. Made of high-quality fir wood, this greenhouse has two openable roofs that provide a healthy ventilation system for your plants in different weather. The roof grooves design can prevent rainwater from accumulating on the roof, making it suitable for outdoor use even in rainy days. The lower shelf with a slat design offers additional storage space for your potting tools, and it also makes the greenhouse more sturdy. Additionally, the natural color of the wood blends easily with other décor and natural settings.

What We Like
Two openable roofs for healthy ventilation system
Lower shelf provides additional storage space and stability
Rainwater-proof design enables outdoor use on rainy days
High-quality fir wood with a polished rustic style
100% satisfaction guaranteed
#TOP 4

MCombo Large Wooden Greenhouse 1344

6057-1344
Brown
MCombo Large Wooden Greenhouse 1344 Cover
MCombo Cold Frame Greenhouse, Large Wooden Greenhouse Cabinet, Garden Cold Frame with Adjustable Shelves for Outdoor Indoor Use, 1344 (Brown)

The MCombo Greenhouse 1344 offers ample space for your plants and gardening tools, with dimensions of 44.5" x 24.8" x 55.4". It features two adjustable shelves, allowing you to customize the height to accommodate different plant sizes. The openable roof design enhances ventilation, ensuring your plants receive the airflow they need in varying weather conditions. Additionally, its sturdy construction is supported by four reinforced metal brackets, providing extra stability for your greenhouse setup. This combination of features makes it an excellent choice for both indoor and outdoor gardening enthusiasts.

What We Like
Spacious design for plants
Adjustable shelves for versatility
Good ventilation with openable roof
Enhanced stability with metal brackets
#TOP 5

MCombo Wooden Garden Cold Frame Greenhouse 6057-0690

6057-0690
Orange
MCombo Wooden Garden Cold Frame Greenhouse 6057-0690 Cover
MCombo Wooden Garden Portable Greenhouse Cold Frame Raised Plants Bed Protection 6057-0690 (Orange)

The MCombo Wooden Garden Cold Frame Greenhouse 6057-0690 is a perfect fit for any patio, balcony, deck, or garden. It is equipped with transparent polycarbonate glazing boards to ensure that your plants absorb the maximum light for the best plant photosynthesis. The foldable top and two bolts on the two sides make it easy to open and close while you fix it. Moreover, holding seed trays, pots, and plant growth light, it extends the growing season and protects young plants from frost throughout the cold winter. In short, it's an elegant, simple, and effective solution for year-round gardening.

What We Like
Transparent polycarbonate glazing boards to ensure maximum light absorption for the best plant photosynthesis.
Foldable top and two bolts make it easy to open and close while you fix it.
Extends the growing season and protects young plants from frost throughout the cold winter.
#TOP 6

MCombo 2-Tier Wooden Cold Frame Garden Greenhouse

6057-0160
Orange
MCombo 2-Tier Wooden Cold Frame Garden Greenhouse Cover
MCombo 2-Tier Wooden Cold Frame Garden Greenhouse Raised Flower Planter Shelf Bed Protection 6057-0160 (Orange)

The MCombo 2-Tier Wooden Cold Frame Garden Greenhouse is perfect for plant lovers who want to extend their growing season. Its adjustable layer height feature allows you to determine the height between layers of partition board, making it suitable for different types of plants. Made of heavy-duty fir wood, this greenhouse is durable and strong enough to hold seed trays, pots, and plant growth lights. The water drainage groove design on the roof prevents rainwater from accumulating on the roof, making it perfect for use outdoors in rainy days. With double shelves and a foldable top design, it provides ample space for your plants to grow, while absorbing the shine and keeping away from the rain. 100% satisfaction guaranteed.

What We Like
Adjustable layer height feature suitable for different types of plants
Heavy-duty fir wood construction for durability and strength
Water drainage groove design on roof prevents rainwater accumulation
Double shelves and foldable top provide ample space for plant growth
100% satisfaction guaranteed
#TOP 7

MCombo Greenhouse Wooden Cold Frame Greenhouse

6057-0760
Orange
29.9"x 18.2"x 43.3"
MCombo Greenhouse Wooden Cold Frame Greenhouse Cover
MCombo Greenhouse Wooden Cold Frame Greenhouse, Garden Portable Mini Greenhouse Cabinet, Raised Flower Planter Shelf Protection for Outdoor Indoor Use, 0760

The MCombo Greenhouse Wooden Cold Frame Greenhouse is an excellent choice for both outdoor and indoor gardening. The sturdy structure made of fir wood provides long-term reliable use, and the polish and cutting workmanship are smooth, allowing painting and staining without any additional process. The adjustable shelf can be freely adjusted to fit various types of plants, and the transparent polycarbonate panels offer efficient protection while retaining heat and maximum light transmission. The openable roof provides a healthy ventilation system to your plants in different weather, and the clear instructions make it easy to install.

What We Like
Sturdy fir wood structure for long-term reliable use
Adjustable shelf to fit various types of plants
Efficient protection with transparent polycarbonate panels
Openable roof for healthy ventilation system
Easy to install with clear instructions and included tools
#TOP 8

Home-Complete Cold Frame Greenhouse

50-LG1321
Natural
Home-Complete Cold Frame Greenhouse Cover
Outdoor or Indoor Greenhouse - Cold Frame Green House with Polycarbonate Panels, Wood Frame, and Adjustable Shelves - Garden Decor by Home-Complete

The Home-Complete Mini Greenhouse is a versatile solution for extending your growing season, whether indoors or outdoors. Its transparent panels not only allow ample sunlight for your plants but also help retain warmth, ensuring your plants thrive even in cooler weather. You can easily access fresh air for your plants thanks to the adjustable roof panels, making watering and care a breeze. Additionally, the three adjustable shelves offer customizable space, allowing you to accommodate plants of various heights. With a durable wood frame and tough polycarbonate panels, this greenhouse promises longevity and style in your gardening endeavors.

What We Like
Expandable growing season
Adjustable ventilation roof
Customizable shelf arrangement
Durable wood and polycarbonate
#TOP 9

MCombo Wooden Greenhouse 0718

6057-0718
Natural
MCombo Wooden Greenhouse 0718 Cover
MCombo Wooden Cold Frame Greenhouse, Wooden Greenhouse Cabinet Kit with Adjustable Shelf & Lockable Door, Fully Transparent Polycarbonate Greenhouse for Outdoor Indoor Use, 0718 (Natural)

The MCombo Greenhouse is designed to enhance your gardening experience. Its transparent polycarbonate panels allow maximum sunlight to reach your plants, creating the ideal environment for seed growth. You can easily adjust the height of the shelf to accommodate various plant types, ensuring they receive the best care possible. The openable roof feature promotes healthy air circulation, adapting to different weather conditions. Additionally, the greenhouse's sturdy construction, supported by reinforced metal brackets, provides the stability needed to protect your plants from the elements.

What We Like
Excellent sunlight exposure
Adjustable shelf height
Improved ventilation
Sturdy and stable design
#TOP 10

HAPPYGRILL Cold Frame Greenhouse

HG2100
Natural
HAPPYGRILL Cold Frame Greenhouse Cover
Happygrill Cold Frame Greenhouse, Wood Potable Greenhouse with Foldable Top, Transparent Lid, Raised Planter Box Protection, Indoor & Outdoor Mini Greenhouse for Garden, Patio, Balcony, Terrace

The HAPPYGRILL Mini Greenhouse is designed to enhance your gardening experience. Its transparent PVC lid allows ample sunlight to reach your plants while maintaining a stable temperature and humidity. The flip-top door provides easy access for air circulation, preventing overheating and keeping your plants safe from harsh weather and pests. With a unique bottomless design, this greenhouse promotes better oxygen exchange and drainage for your plants, ensuring they absorb essential nutrients. Measuring 39" x 19.5" x 14", it offers spacious growing space that fits beautifully in any outdoor setting.

What We Like
Durable natural wood construction
Transparent lid for light
Easy air circulation control
Promotes nutrient absorption
Spacious growing area
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Is a cold frame as good as a greenhouse?

If you love to use tender or tropical plants in your garden but don't know what to do with them come fall, a cold frame provides a simple solution. It is not a greenhouse: You won't be able to keep your plants growing lushly through the winter months.

2. What can you grow in a cold frame greenhouse?

The system is used primarily to grow salad greens; spinach, chard, máche, claytonia, arugula, and a variety of lettuces grow well in cold frames. However, it can also be used to grow other vegetables such as scallions, radishes, carrots, and leeks.

3. Is an unheated greenhouse a cold frame?

Chances are good your unheated greenhouse is a simple cold frame or hoop type of structure. This structure is very simple to use in the winter and fairly low cost. It should be situated so it is getting the most natural sunlight possible, out of the way of winds, and as close to a water source as possible.

4. How much warmer is a cold frame greenhouse?

Cold frames will generally keep the garden 5 to 10 degrees warmer than the outdoor temperature. So, if your plants are hardy enough to grow in 40-degree weather, you might be able to start them while there's still frost out.

Editor's Notes

During our cold frame greenhouse research, we found 24 cold frame greenhouse products and shortlisted 10 quality products. We collected and analyzed 5,453 customer reviews through our big data system to write the cold frame greenhouses list. We found that most customers choose cold frame greenhouses with an average price of $182.27.

The cold frame greenhouses are available for purchase. We have researched hundreds of brands and picked the top brands of cold frame greenhouses, including IDZO, HAPPYGRILL, MCombo, Home-Complete. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Steven Taylor Avatar

Steven Taylor grew up in a small town called Beaufort in South Carolina and his passion for building and woodworking has led him to master the latest garden gadgets. He always holds every chance to patch up or sand down his beloved garden. There are various novel technologies in his articles.