The Best Greenhouse Cold Frames of 2023

DIY Kit Includes - Comes with 24pcs hoops frame, 1/2" in diameter, 17inches in length; 25pcs connectors; 1 pair of work gloves.

Follow Your Heart - There is no need to spend more money to buy different size grow tunnel now. Buy 1 set, DIY your own grow tunnel. Combined with 3 or more hoops to fit your different needs. Each hoop is 17 inches in length that is easy to store.

Easy to Assemble - Connect a certain number of hoops with connectors according to your needs. Bend the assembled hoop then insert it into the soil. These parts can be used season after season.

From Spring to Winter - It can be matched with different types covers to protect plants from all seasons.

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【Water Drainage Groove Design】Roof grooves are designed to prevent rainwater from accumulating on the roof and can be used outdoors in rainy days.

【Absorb Enough Shine】Equipped with transparent polycarbonate glazing boards, this wooden garden cold frame greenhouse ensures that your plants will absorb the maximum light to achieve the best plant photosynthesis.

【Adds a Touch of Green】Elegant and simple design gives our patios, balconies, decks and gardens a touch of green.

【Extended Growing Season】This greenhouse cold frames, holding seed trays, pots and plant growth light, extend growing season and protect young plants from frost throughout cold winter.

【100% Satisfaction Guaranteed】We would try our best to give you satisfied shopping experience, if there is quality, we would make best solution to solve the problem.

【Adjustable Layer Height】Freely determine the height between layers of partition board.(Four screw holes preseted, you can also make holes by yourself to determine the height of layer by screwdriver)

【Solid Structure】Structured with heavy-duty fir wood for extended durability, and the structure follows the scientific principle and is strong enough to hold seed trays, pots and plant growth light.

【Water Drainage Groove Design】Roof grooves of wooden cold frame are designed to prevent rainwater from accumulating on the roof and can be used outdoors in rainy days.

【Double Shelves & Foldable Top】Double shelves provide more space for variety of plants and flowers to grow up. The foldable top is convenient for plants to absorb the shine and keep away from the rain.

【100% Satisfaction Guaranteed】We would try our best to give you satisfied shopping experience, if there is quality, we would make best solution to solve the problem.

SUPPORTS PLANT GROWTH: The transparent polycarbonate panels of the Outsunny 71" Aluminum Triple Cold Frame Greenhouse allow maximum light transmission while retaining heat for early seed sprouting or for protecting plants late in the season.

ADJUSTABLE ROOF: The adjustable roof openings provide proper ventilation and easy access to your plants.

DURABLE DESIGN: The lightweight aluminum frame and rust-resistant hardware helps prevent corrosion from affecting all of the components of your cold frame greenhouse making it last for seasons to come.

PROTECTS PLANTS: The Outsunny 71" Aluminum Triple Cold Frame Greenhouse can help keep squirrels and other small animals from digging up and eating all those bulbs and shoots that you worked so hard planting.

LARGE GROWING SPACE: An overall size of 71"L x 21"W offers you plenty of space for plant preparation and growing. Keep them safe and sound inside until they’re hardened enough for planting outside.

Sturdy Structure: The cold frame greenhouse is made of fir wood which is durable and sturdy, offers long-term reliable use. And the polish and cutting workmanship on this outdoor greenhouse is smooth, allowing painting and staining on it without any other process.

Adjustable Shelf: The shelf of this mini greenhouse could be freely adjusted height to fit various types of plants, which meets all your needs. (Five screw holes preset, you can also make holes by yourself to determine the height of the shelf).

Efficient Protection: Garden greenhouse used transparent polycarbonate panels, which have maximum light transmission function while retaining heat for early seed sprouting and for protecting plants late in the season, your plants could enjoy the sun and grow healthily.

Openable Roof: The Bolt on the side could be used to fix the top keep open, and the size of the vents can be controlled by holding the screws in different rods position, providing a healthy ventilation system to your plants in different weather.

Convenient Installation: This greenhouse kit is included clear instructions, it's very easy to follow. Every part is clearly labeled, all tools you need are also included. If you need any help in installation, please feel free to contact us.

Beautify Green Spaces and Large Capacity-- Big storage capacity for various types of plants and elegant and simple design. Giving your patios, balconies, decks and gardens a touch of green, without any fuss.

Foldable Top-- The top part of this product could be open and close, and two bolts on the two sides which could be used to fix the top. And in the sunny day you could open it to let your plants absorb the sunlight and in rainy, you could close the top to keep it away from the rain.

Solid Structure--Structured with heavy-duty wood for extended durability, and the structure follows the scientific principle and is strong enough to hold seed trays, pots and plant growth light.

Easy Movement and Assembly--All parts are detachable, so you can set it up wherever you want to, and move it when the seasons shift. No tools required.

100% Satisfaction Guaranteed--We would try our best to give you satisfied shopping experience, if there is quality, we would make best solution to solve the problem.

EXTEND THE GROWING SEASON: Hanover's cold frame mini greenhouse uses solar energy and insulation to create a microclimate within your garden. Use it to extend the growing season past the first frost, overwinter dormant plants, give seedlings an early start, harden off young seedlings, or protect sensitive plants from extreme weather conditions. Perfect fit for a first-time grower or seasoned gardener.

ADJUSTABLE ROOF VENTILATION SYSTEM: Our easy and effective venting system protects the climate inside your cold frame to moderate the temperature and maximize growing conditions. When opened, the adjustable latches allow proper airflow for optimal growth and preservation.

STURDY, STRONG & DURABLE: Made with rust-resistant aluminum frames and double-walled polycarbonate panels with UV protection for long-lasting use to enjoy for many years.

DIMENSIONS: Exterior Dimensions: 39.3"D x 39.3"W x 18.9"H, Interior Dimensions: 37.4"D x 37.4"W x 18"H

EXCELLENT CUSTOMER SERVICE: Hanover Customer Service is here to help! If you are in need of replacement parts, parts due to damage in transit, or have any questions, please feel free to contact us and our customer service team will respond within 24 hours to assist you.

2 SLATTED SHELVES: 2 removable shelves provide ample space for plants of various types in this garden greenhouse. Add a touch of green to your patios, balconies, decks, and gardens without much hassle.

OPENABLE TOP: The top of this polycarbonate greenhouse opens for easy access, so you could open it on sunny days to let your plants absorb the sunlight and close it on rainy days to keep it away from the rain.

SOLID CONSTRUCTION: The planter frame is made with solid fir wood with outdoor paint for added strength. The transparent 4 mm twin-wall plastic panels allow maximum light transmission while retaining heat for early seed sprouting or for protecting plants late in the season.

DOUBLE DOORS WITH LATCHES: This green house has 2 lockable doors for added safety and can be easily opened or closed for plant management.

GREEN HOUSE INFORMATION: Overall Dimensions: 30" L x 23.5" W x 43.25" H, Shelf Size: 28.75" L x 21.75 W, Weight Capacity: 44 lbs. / per shelf

Sturdy Structure: The cold frame greenhouse is made of fir wood which is durable and sturdy, offers long-term reliable use. And the polish and cutting workmanship on this outdoor greenhouse is smooth, allowing painting and staining on it without any other process.

Adjustable Shelf: The shelf of this mini greenhouse could be freely adjusted height to fit various types of plants, which meets all your needs. (Five screw holes preset, you can also make holes by yourself to determine the height of the shelf).

Efficient Protection: Garden greenhouse used transparent polycarbonate panels, which have maximum light transmission function while retaining heat for early seed sprouting and for protecting plants late in the season, your plants could enjoy the sun and grow healthily.

Openable Roof: The Bolt on the side could be used to fix the top keep open, and the size of the vents can be controlled by holding the screws in different rods position, providing a healthy ventilation system to your plants in different weather.

Convenient Installation: This greenhouse kit is included clear instructions, it's very easy to follow. Every part is clearly labeled, all tools you need are also included. If you need any help in installation, please feel free to contact us.

EXTEND THE GROWING SEASON: Hanover's cold frame mini greenhouse uses solar energy and insulation to create a microclimate within your garden. Use it to extend the growing season past the first frost, overwinter dormant plants, give seedlings an early start, harden off young seedlings, or protect sensitive plants from extreme weather conditions. Perfect fit for a first-time grower or seasoned gardener.

ADJUSTABLE ROOF VENTILATION SYSTEM: Our easy and effective venting system protects the climate inside your cold frame to moderate the temperature and maximize growing conditions. When opened, the adjustable latches allow proper airflow for optimal growth and preservation.

STURDY, STRONG & DURABLE: Made with rust-resistant aluminum frames and double-walled polycarbonate panels with UV protection for long-lasting use to enjoy for many years.

DIMENSIONS: Exterior Dimensions: 20"D x 47.2"W x 20"H, Interior Dimensions: 19.3"D x 46.8"W x 18"H

EXCELLENT CUSTOMER SERVICE: Hanover Customer Service is here to help! If you are in need of replacement parts, parts due to damage in transit, or have any questions, please feel free to contact us and our customer service team will respond within 24 hours to assist you.