Gussied it up a bit! Hopefully it’ll reduce the amount of space I’m having to heat as well as block any drafts below the benches. Took this picture after sunset when my solar lights had come on, which gives it a nice cozy glow, I think. The “thermal curtains” are by-the-yard vinyl flannel-backed fabric commonly used to outdoor tablecloths. I had my choice of pink-and-blue baby rattles, lemons with leaves, or red plaid. I thought my Hawai’i loving parents would approve of the theme!

I have a yardistry greenhouse (L x W x H): 1.09 m x .79 m x 1.9 m (3.6 ft x 2.6 ft x 6.2 ft). It has a roof vent that is opens mechanically by a certain temperate. There are two small vents on the bottom sides as well. I have cactus and succulents inside and the humidity is getting to be too high. I have heavy rain for days in the forecast so I need to get the humidity lowered and stabilized very soon.

In zone 7a, central NJ. Was considering getting a green house for simple indoor plants and to start vegetable seeds. If i want to use it year round do i need to put a heat source in there during winter or will it stay warm enough?

Very new to greenhouse stuff, my sister and I just started researching. Our mom has plants that she loved to put out on her porch and all during warmer months. However we are now to the time of the year where it’s below freezing some nights and she’s having to take them in and eventually struggles to find places near windows for them the rest of winter.

Would one of those like small $100-$150 greenhouses work? Or do they only work to certain temps? Just don’t want to get her one and her plants end up dying that she cares so much for.

Thanks so much!

Looking to get feedback on what people have thought of these greenhouses, particularly this one

AMERLIFE 8x12x7.5 Polycarbonate Greenhouse with Quick-Connect Fittings, Walk-in Aluminum Greenhouse with 2 Swing Doors, Greenhouses for Outdoors for Garden Backyard, Black https://a.co/d/fwTAMrQ

What is the best way to manage humidity in a small hoop house 360 sq foot 15x24? The greenhouse dehumidifiers are over $1K it looks like. Maybe I just need to cover the entire floor in plastic to try to prevent or slow down evaporation from the ground. I feel like a dehumidifier would have to be commercial grade running round the clock from too much water evaporating. Like managing humidity in a commercial indoor pool. They have commercial dehumidifiers that run most all the time. Can landscape fabric (I have this on half of it) help or do you really need plastic so nothing can pass through it? It likes to be 95% RH almost all the time currently.

Are there seasonal greenhouses that I can take down when it gets warm again?

my apartment has a built in greenhouse where i’m trying to keep my passion fruit vine alive through the winter. it’s working well so far but I worry about when it gets colder as it leaks a lot of cold air.

does anyone here know of any mats or pads I can use to insulate the floor of it, since that’s where it leaks most? not sure if this is the best sub to post but not sure where else it would fit

I've got the cedar yardistry 8x7. My first season with it and so far everything's been good, but airflow has been an issue. I imagine once the temps drop for winter fungal problems are going to be huge. Unfortunately I have some barriers to running electricity to it so fans are a struggle.

I've tried a variety of solar fans but they don't provide as much airflow as I'd like. Has anyone made modifications to the greenhouse for extra airflow? I've been thinking of maybe cutting out some of the polycarbonate panels, framing them, and reattaching them on a hinge. I'm not really sure at the moment though. Would love to hear if anyone else has made some non-electrical modifications related to airflow. I already keep the door, bottom vent, and roof opening open 24/7.

I purchased 2 of this item in 60", a custom length, and wound up not needing them. Original cost was $220 but will sell them for $150 (OBO) plus shipping. Good product from a good company.

Hello! I am building a greenhouse next to our spring house, and looking for help on keeping it above freezing. I am in 6b, SW Ohio. Greenhouse will be south facing and at least partially built into a hill.

My spring is very high producing and developed with a 10x10 concrete holding tank. It stays in the mid-50's in the spring house year round, and I use it like a root cellar - canned goods, potatoes, apples, etc.

I was thinking if I used pex (have a bunch that I got free) to constantly run water through the floor, or the back wall, or some wall/floor combination, that should keep me above freezing, right? Like the opposite concept of radiant heated floors? The spring doesn't ever go dry and is uphill from the greenhouse site. Currently excess spring water flows into a creek, so I would just re-route the existing drainage from the creek to go through the greenhouse and then into the creek.

I've looked into using barrels for thermal mass, but since I already have the constant flowing spring water it may be a better choice.

Do you think this will work? My goal is to be able to keep it warm enough to keep some citrus alive, grow a little over the winter, and extend my growing season.

Thanks for any help or direction you can provide.

https://a.co/d/gRPnBwX

Is this one from Amazon worth the money?

Hey everyone, any advice on my best sub 300 greenhouse options? Wanting to grow vegetables through the winter, on coastal georgia. Thanks for any advice!

I am thinking of an airtight greenhouse that doesn't use windows but instead fans. Once the air density is precisely where I need it, I could just use a 1:1 ratio of air in and air out or maybe a .7:1 not sure if I need to account for the difference of air density within the greenhouse vs outside. I am not sure this is just a guess which is why I am asking here. If no one knows I will figure out some math and run tests once I build a greenhouse.

Hey, new to the sub and new to greenhouses. Just bought a home in the northeast US that came with this greenhouse and I intend on not letting it go to waste. It has (had) a working natural gas furnace inside, sadly, the gas lines were recently damaged from other work and would be costly to repair as they’d have to run new gas line.

Question: is it worth it to replace the lines? I could also convert it from natural gas to propane for cheaper but not sure if there’s a downside to that? Am I making much-ado about nothing and will never use the furnace much?

Another cold season is upon us. Harbor Freight 6x8 heated to 42F (5C). Zone 6b, 4300ft, high desert. Happy growing, all. 🌵❄️✌️

I’m new to gardening and greenhouses. I have plants that really should be in a warmer climate so I bought a pop up greenhouse to put them in over the winter. I read to put a heater in it to keep it warm. I bought one specifically for outside greenhouses but it gets hot to the touch and it says not to leave it unattended. In order to be near the hose and the outdoor plug-ins the greenhouse is near our house. If it were to go up in flames so would our house! The greenhouse also says to take it down in windy or snowy weather. I thought that was the point of having a greenhouse — to protect the plants from weather!!! Will someone please shed some light on how to correctly use a pop up (8x10) greenhouse? Thank you!

I'm looking for a fan controller that in addition to sending the power to my fans at a certain upper temperature to keep the greenhouse from over heating, would also add an interval timer to provide fresh air periodically through the day.  But I also want it to stop the interval timer once the temperature gets below a certain degree so that I don't over-cool the greenhouse on cold days or in the evenings. 

Here's an example,  The exact temperatures and intervals aren't critical for the example, but I'm having a difficult time finding something that does this:

• Temperatures greater than 90 degrees, provide constant power until temperature gets below 90 degrees again.
• Temperatures from 60-90 degrees, provide power in cycles for 5 minutes every hour to provide fresh air.
• Temperatures below 60, turn off completely.

I haven't found anything that looks like it can do this. Is there a simple way of doing this? If not simple, is there a more complex way of doing this? :-D

I’ve wanted a greenhouse for years and I keep coming across those DIY angled brackets that use 2x2 lumber. Has anyone successfully put one of these together? What did you use for paneling when finished? How strong are they?

Edit: here is a link for one: greenhouse