FrostRow - Extendable Cold Frame Greenhouse
SHIPPING INFORMATION
How do I track my order?
You will receive an order confirmation immediately after your purchase, then we will send you a tracking number for your order. You can also reach out to our customer support at support@jstonewell.com for any questions you may have.
How long does it take for the order to arrive?
Once shipped, your order should arrive within 3 to 8 days. We will send you an email confirmation as soon as your order ships to keep you updated. Feel free to email us to check on your order status at any time. We're happy to help
OUR GUARANTEE
If for any reason you are dissatisfied with your purchase, we'll make it right. We believe that our customers deserve the absolute best value without sacrificing superior quality, and your satisfaction is our #1 priority.
If it doesn't work for you or you just don't like, return it. Within 30 days of receipt, products purchased from JStonewell may be returned for any reason.
Protect Your Plants Earlier, Longer & With Less Hassle
Cold weather can slow down your growing season before it even starts. This Extendable Cold Frame Greenhouse gives your seedlings and vegetables a more controlled outdoor environment, helping you start earlier in spring and keep growing later into the colder months.
Whether you're hardening off seedlings, protecting tender plants overnight, or extending your harvest season, this setup makes it simple.
A Simple Way to Give Your Garden More Growing Time
Designed with a durable powder-coated steel frame and a heavy-duty PVC cover, this cold frame greenhouse creates a protected space for young plants without the bulk or complexity of a full greenhouse.
The 4ft x 4ft design fits easily into raised bed setups or backyard garden spaces, while the zippered access windows make watering, airflow control, and plant care quick and convenient.
Why This One Stands Out
- Extendable design — Multiple units can zip together to create longer rows of protected growing space
- Quick-access zippered windows — Easily tend to plants and manage airflow or temperature
- Powder-coated steel frame — Built to resist rust and outdoor wear
- Easy seasonal setup — Remove and replace the cover as weather changes
- Compact but versatile — Ideal for raised beds, seedlings, greens, herbs, and cool-season crops
Key Benefits
- Helps protect young plants from cooler outdoor temperatures
- Great for starting seedlings earlier in the season
- Supports hardening off indoor-started plants before transplanting
- Works well for lettuce, kale, radishes, onions, herbs, and other cool-weather crops
- Lets you garden longer into spring and fall
- Creates a cleaner, more organized growing setup
- Simple design with minimal tools required
Designed For Flexible Gardening
Unlike bulky permanent greenhouse structures, this cold frame is lightweight, modular, and easy to manage throughout the season. The cover can be removed during warmer daytime conditions and replaced overnight when temperatures drop.
If you want even more coverage later, simply connect additional units end-to-end for a continuous growing row.
Ideal For
- Backyard gardeners
- Raised bed gardens
- Seed starting and hardening off
- Spring and fall growing seasons
- Urban and compact outdoor spaces
- Gardeners looking for a simpler greenhouse alternative
Built for Everyday Gardeners
No complicated setup. No oversized greenhouse footprint. Just a practical, durable way to help your plants handle changing outdoor conditions while giving your garden more flexibility throughout the season.
Give Your Garden a Head Start
Start earlier, grow longer, and protect your plants with a cold frame greenhouse designed for real-world gardening.
Note:
Raised bed not included.