Build your own small greenhouse on a raised bed!
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- เผยแพร่เมื่อ 25 มิ.ย. 2024
- Even though we have our glass greenhouse, the R-value on it is actually pretty low: around 0.91! Actually, the R-value on this double-plastic hoop design is higher, coming in at around 1.3 to 1.4, and if you added a layer of bubble wrap it would be even higher--this structure is actually easier to heat than our bigger greenhouse!
This makes it ideal for hardening off seedlings that are almost ready to go out but still need a bit of protection, or growing on seedlings that need additional heat. While the temps won't stay even enough for germination, you could germinate inside and then move your seedlings out to this space (if you use the supplemental greenhouse heater). In our tests, the structure as built holds temps about 22 to 25 degrees F higher than outside air temps, so when it is 27 degrees F outside, the greenhouse holds around 48 F at night. During the day, the temps warm up quite well and you will likely need to ventilate the sides to help prevent overheating--so if you are using it as a greenhouse and you work during the day, remember to ventilate it so you don't roast your plants!
You can also use this hoop structure minus the space heater to extend your growing season. Usually a structure like this lets us plant about 2 weeks earlier and will protect from any unexpected frosts that may occur. We leave the hoops up all year as we can always use them to throw some netting over in case of hail!
Remember, if using a greenhouse heater, be sure to keep 3' clear of combustible items, in this case leaves or debris, and use an outdoor rated cord. Always follow space heater safety protocol. :)
Materials list for a 4x8' bed:
-10 pieces of 1/2" by 24" or 18" long rebar
-15' of nylon cord
-4 hoops, 10' long (PVC if you don't have a hoop bender, or electrical metal conduit if you have a hoop bender like the one from Johnny's Seeds)
-10'x25' sheet of greenhouse plastic, at least 7 mil but ideally 8 mil, from Johnny's Seeds or Greenhouse Megastore
-Optional greenhouse space heater
-Clamps like these (8 total, two per hoop)
Materials link: www.amazon.com/shop/blossoman... - แนวปฏิบัติและการใช้ชีวิต
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I’m always amazed and impressed with your meticulous detail, showing everything we need to know. AND. you make it look so easy it’s inspiring!
Same. I love how she goes over every detain (believe me I'm trained for over 10 years and I learn stuff from her every time I watch a vid.) and she doesn't bother with the silly cutesy antics and phony-ness of other youtubers.
I am loving all the great content you have been creating! Just wondering if you could go into more detail about greenhouses for beginners like using as a way to harden off and starting seeds. Hardening off seeds is such a chore.
This is a game changer for me in town, where I am not allowed to have a greenhouse! I also appreciate your clear instructions:) Thank you so much!
I can’t count all of the TH-cam videos I’ve watched of yours!! I’ve learned so much from you! And I’m really excited to start my cutting garden! Thank you SO much for the knowledge you’ve given! 🌻
Thank you so much, that makes my heart so happy!!
I've never seen anyone use the rope at the top of the piping like that- that's a genius idea! I have unfortunately tried to make a hoophouse like these so many different ways, & everytime we get a tiny bit of wind, it gets torn apart! I ended up buying a couple quictent hoophouses & burying the plastic & metal bars about 9 inches in the ground + sandbags on tops & that's the only thing that has worked!
Thank you for all of your hard work in sharing your journey ❤
Thank you!
Very useful and informative video, thanks for sharing. Glad I found your channel! Happy gardening!
Thanks so much for this tutorial and sharing your method of building a pop-up greenhouse. This would definitely work for me in my zone5🇨🇦 urban garden as a newbie. Thank you!
Yes to the bubble wrap! Plus it gives all that bubble wrap we have a new life. Those clips are the best. I will do one of these until I get my greenhouse in 1-2 years. Need a new shed first 🙂
I glitched at 0:57, sorry everyone 😅
Nah, it’s just “real!” Loving your transparency.
I did this last night in the dark for my sweet peas. I'm sure I'll have to make some adjustments today when I go out and see it.🤣 It's great for hardening things off for sure.
I loved this video! (I love all of them TBH) I’m newer and LEARNING. The “spine” is the answer I was looking for! I’m also in Denver, and deal with a TON of rabbit pressure in my area. Lost ALL of my seedlings last year; combined with the late frost we had - it’s a wonder I had anything LOL but the late summer allowed time for some late blooms through 1st 1/2 of October - so that was cool. :). Working on mapping out a plan and saw your other video on garden layout ideas which was also SUPER helpful! Thank you for making these and sharing your knowledge. I’m excited for a production 2023!!!! Trying a lot of new things this year so praying for success!
This is awesome. Thank you for sharing your experience and knowledge!
It’s invaluable!!
That was the best video for a greenhouse! Love your channel❤️
Cattle panels work in place of the pvc as well. Love your video.
I use the clips and also elastic bands from homedepot, to keep the plastic down because wind is strong during northeaster winter.
Life changing thank you 🌱
Thanks for the great idea! I need to do this as my basement is almost full with seedlings and i need to start my warm season vegez
Great video, thank you! I might have to try this :)
Can you please do a video on your major, job life, leaving your cubicle and starting farming and finding love please please please?
Thank you. I will build this type of minihoophouse inside my single poly hightunnel. Here in the way up north (60 N latitude) we need to get extra protection for the frost.
thank you (lol.. .ironically) ... another thing on my to do list, because my wife love this, and already asked me nicely to build one (well ..what the wife wants... the wife... usally gets ;) ) But in all honesty... here in the Netherlands we gotten quite a cold februari, and a colder start of march this year (frost at night even) ..so this would even have been helpfull 3 weeks ago ;)
Thanks!!!
Brilliant!
The inner layer of the double plastic layer could be reused until the reaction with PVC happens to then be changed out or the PVC could be painted with anti UV paint. This could theoretically make this a more long term option.
I love the rope spine idea. I have seen pvc used as a center post but this looks more stable. Would soil heaters work to add enough heat?
Thank you for the detailed instructions!! I don't see the clamps on the amazon products page. Are they a 1/2" jaw spring clamp for 1/2" PVC or do they need to have a larger jaw?
Just found your channel and would love to know where in the U.S you are located and what Zone you garden in. I am in Central Ontario Canada and still have a foot of snow on my raised bed right now. Our last frost date is May 24, so Starting anything outside before that is a death sentence most years, and some years its still too soon. Since Its more of a hobby for me, I am not prepared to buy a Greenhouse. But this idea is pretty cool, along with your cattle panel hoop house.
Question- at the end when you say without a heater the double plastic will provide protection of 5 degrees, does that mean it will protect the ground from reaching freezing temps when it’s as low as 10 degrees outside? I hope that makes sense thank you for the great content!
What is the brand of heater you are using? Great video!!!!
The idea is great but with the snow and wind, it was more work than worth. I'll have to wait for my greenhouse.
Hi Bri, where can I find links to the stuff you use for watering (drip lines, valves, etc)? I have a business license to buy wholesale, but am new at this, so any helps would be great!
Hi there, would you mind telling me what brand boot you are wearing? I have been a hard working horticulturist for years and still have not found a comfortable work boot that gives me support all day! Thanks so much!
How does the 8mil hold up to colorado hail? Do you happen to know of any bug netting that would hold up to hail as well? I know hardware cloth/wire mesh works well but of course it is expensive.
What do you have planted for the trellis I see in the background/right? :)
Have you considered putting a cut tennis ball over the tops of the rebar at the ends of the bed to help prevent someone tripping or accidentally puncturing themselves if the fall on bar? great video otherwise. Thanks
We use plastic rebar caps :)
Just tried this the other weekend because we had temps in the low 60s and of course in Colorado that happening on the weekend is amazing luck. But in 30 minuets one had bent and creased in the middle and the other just exploded/shattered. I'm not sure if it is still too cold or if it is the fact our beds are only 2.5 ft wide. Do you have any recommendations for narrow beds or is there another type of PVC that might work better?
Do you feel as though using cattle panels would be stronger? It would be more expensive. I live in the New England area, worried about the snow load.
The snow usually slides off these or is easily shaken off. Cattle panels don’t work well for smaller structures like these in my opinion but the metal hoops would be stronger than the PVC.
Cattle panels would be for a bigger one that I could walk through? I believe you have a video on that.
did u forget to edit this? good content overall though.