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Main Banana Discussion This is where we discuss our banana collections; tips on growing bananas, tips on harvesting bananas, sharing our banana photos and stories.


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Old 02-21-2013, 07:58 PM   #1 (permalink)
 
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Default Green House Question.

Hello Gang ;

After Getting hit hard with 2 Frost , I was thinking of buying one of these Green Houses .
Greenhouse Outdoor 12'x7'x7' Green House w Shelves | eBay

Question is , if the weather outside drops to 30f , what would be the approx temp inside the GH without a heater .

Thank You !
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Old 02-21-2013, 09:01 PM   #2 (permalink)
 
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Default Re: Green House Question.

That probably depends on if it's day or night, cloudy or sunny, how long it stays under 30 and so on.
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Old 02-21-2013, 10:42 PM   #3 (permalink)
 
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Default Re: Green House Question.

I don't know about the difference in temperature but it looks good for the price. At least it'll provide protection from some frost, excess rain and cooling/drying wind.
As it's plastic rather than glass, it'll cut out uv rays so plants are less likely to burn, but ventilation will be more difficult to control compared to a conventional glass greenhouse as the vents are only in the sides rather than in the roof as well. The frame looks as though it might be quite light so you'd have to be careful in high winds unless it's sighted in a sheltered place.
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Old 02-22-2013, 01:11 AM   #4 (permalink)
 
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Default Re: Green House Question.

Quote:
Originally Posted by edzone9 View Post
Hello Gang ;

After Getting hit hard with 2 Frost , I was thinking of buying one of these Green Houses .
Greenhouse Outdoor 12'x7'x7' Green House w Shelves | eBay

Question is , if the weather outside drops to 30f , what would be the approx temp inside the GH without a heater .

Thank You !
I really don't suggest getting this type of frame. If you do buy this one, I would suggest reinforcing it with more metal because this type of greenhouse is very prone to getting destroyed by 55+mph winds unless you plan on putting your greenhouse against the side of your house.

The reason is because its pipes are simply too thin to support the size, and I have used this greenhouse before. I would suggest going to your local hardware store and purchasing PVC pipes along with greenhouse plastic to construct your own since the PVC pipes are much stronger. It may require more time, planning and some work, but I think building your own will pay off in the long run. You can also buy a greenhouse, but I would suggest getting one with a much better frame than the one that you posted.
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Old 02-22-2013, 08:08 AM   #5 (permalink)
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Default Re: Green House Question.

Ed -- don't waste your money on that. Ebay ---- arrrrgh!!!

The best way to get a decent structure is to get a few quotes from local contractors that do this kind of job. And you have to have heating!!! And ventilation!!!

If you use the thing just for the cold blasts you can can move the pots in and out right away. Tall stuff can rest propped up on an angle. The rest of the time the GH will allow you to start and replenish a garden from seeds. Also an orchid collection will thrive in there with ventilation. And to store bags of potting materials stacked.

Or move to WPB or further south. I use my garage for our infrequent freezes.

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Old 02-22-2013, 05:25 PM   #6 (permalink)
 
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Default Re: Green House Question.

Thanks for your help fellas! I think I will build the green house
Bananamal I am considering moving down to Naples or cape coral in a few years , house with at least 1 acre. I have to research both cities.
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Old 02-23-2013, 12:12 PM   #7 (permalink)
 
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Default Re: Green House Question.

Thanks For The Info !

What is used to fasten the Green House Plastic to the PVC piping ?

Thank You !
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Old 02-24-2013, 10:45 AM   #8 (permalink)
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Default Re: Green House Question.

I find it all depends on the type of material the greenhouse if made of.
My first greenhouse if a single-walled poly and keeps the inside only a couple of degrees warmer than the outside temperature.
My newest greenhouse is a double-walled poly and without a heater keeps the inside temperature about 6C warmer than the outside temperature....at 0C (32F) outside it is 6C (44F) inside. With a heater inside I can maintain the inside temperature at a balmy 15C (62F) even when the outside is below well zero.
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Old 02-24-2013, 10:46 AM   #9 (permalink)
 
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Default Re: Green House Question.

Thank You..
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Old 02-24-2013, 01:05 PM   #10 (permalink)
 
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Default Re: Green House Question.

If you decide to build a rigid greenhouse with square sections, you could use twin or triple wall polycarbonate, although it can be relatively expensive to buy.
If you're making a polytunnel similar to the one you were thinking of buying, you could line the interior with plastic bubble-wrap over the winter.
Sometimes one can buy second-hand greenhouse and polytunnel frames from nurseries or market gardens that are closing down or moving.
Depends what's around in your area.
There are a lot of video's on Youtube about building polytunnels along with information on the best materials and types of plastics and accessories etc. to use.
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Old 02-24-2013, 04:03 PM   #11 (permalink)
 
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Default Re: Green House Question.

Take a look here:

Mango in central Italy: an experiment.

(shamelessy self promoting ).

If you carefully plan everything you can get about 18F higher (during night) inside your structure, just with sun heating everything (no bills, no blackout).
But of course, the perfetct greenhouse is the one that suits your needs.
(also keep in mind that my structure has to stay up for several months, and so it isn't very quickly to put on and down).
Hope this can be useful.
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Old 02-24-2013, 10:25 PM   #12 (permalink)
 
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Default Re: Green House Question.

I bought a cheap greenhouse that was on sale at a local discount store. It has clear plastic. In the daytime here, on a clear day, it's gotten up to almost 95 degrees, but in the morning when I go to check, it's ambient. During the day here it's been between 40-50 degrees since I bought it. I have been putting my new small bananas out there and bringing them in at night and putting them by the door in case I forget to bring them out.

My take on a greenhouse is that they don't seem to hold the heat in unless you do something to help with the insulation, maybe build another larger greenhouse over it?

Anyway, I put a bunch of 5-gallon buckets full of water on the inside to act as a thermal battery, that seems to make a bit of difference for the plants next to them, but it doesn't do much for the air.
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Old 02-25-2013, 07:00 PM   #13 (permalink)
 
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Default Re: Green House Question.

Chester post a pic,where in NC do you live?
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Old 02-25-2013, 07:20 PM   #14 (permalink)
 
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Default Re: Green House Question.

Thank You !

This one looks abit more heavy duty ..
12'x7'x7' Galvanised Steel Tube Greenhouse Large Walk in Garden Hot Green House | eBay

Last edited by edzone9 : 02-25-2013 at 07:32 PM.
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Old 02-25-2013, 07:42 PM   #15 (permalink)
 
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Default Re: Green House Question.

[quote=bananimal;214994]Ed -- don't waste your money on that. Ebay ---- arrrrgh!!!

Dan what do you think about this one ? looks sturdy better support that the 1st one i posted .

I travel alot and dont have lots of time to build a GH .
Please view ..

12'x7'x7' Galvanised Steel Tube Greenhouse Large Walk in Garden Hot Green House | eBay


Also what would be the best floor material for this GH ?
Thank You !
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Old 02-25-2013, 08:43 PM   #16 (permalink)
 
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Default Re: Green House Question.

Quote:
Chester post a pic,where in NC do you live?
I live in Carteret County and I am going to attempt to post a gallery picture here:
[IMG][/IMG]

I don't imagine I did that correctly. It is now covered with condensation on the inside. Since I got that, the potatoes in the garden box have sprouted leaves. I have five, 5-gal buckets in there in the hopes that the thermal inertia will keep it warmish in the evening. When I go out in the morning, it's ambient. So, I imagine that insulation would be an issue. I am intrigued by these geodesic greenhouse plans online that look like they can hold an insulating air pocket. In case it matters to anyone, the supports for this are powder-goated steel and thick plastic connectors. It's reasonably sturdy and when tied to the buckets, it hasn't moved in the last few windy days.

For now, I am transferring my little banana plants out there during the sunny days and moving them in at night. I'll put them in the ground in April or something.
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Old 02-25-2013, 11:04 PM   #17 (permalink)
 
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Default Re: Green House Question.

After Loosing all My Fruit Trees Last week to the Cold Miezer , I went & Bought a good Green House To Start All Over Again !
Lost Lots Of Money On My Fruit Trees

Lets see That lil Prick try to Mess with my Plants This Time !

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Old 02-26-2013, 01:18 AM   #18 (permalink)
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Default Re: Green House Question.

[quote=edzone9;215232]
Quote:
Originally Posted by bananimal View Post
Ed -- don't waste your money on that. Ebay ---- arrrrgh!!!

Dan what do you think about this one ? looks sturdy better support that the 1st one i posted .

I travel alot and dont have lots of time to build a GH .
Please view ..

12'x7'x7' Galvanised Steel Tube Greenhouse Large Walk in Garden Hot Green House | eBay


Also what would be the best floor material for this GH ?
Thank You !
For the money looks great. For the floor use paver blocks --- 16" square.
Then a small electric heater can sit in there for the freezes.
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Old 02-26-2013, 08:26 AM   #19 (permalink)
 
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Thank You !
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Old 02-26-2013, 09:38 AM   #20 (permalink)
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Default Re: Green House Question.

I sure hope you all don't get any wind! At least put some tie downs over the top of it. Take some rebar or really long tent stakes, tie some strapping material or in a pinch you could use rope or twine or something and throw it over the top and stake it down on the other side. Do that at least 3-4 times so it doesn't blow away so easy. The yellow things over the top are some pieces of strapping material my hubby scrounged from work and we hooked those into dog tie out stakes, the ones that twist in the ground. This thing from farmek I used for a little while had built in loops to tie it down to some super long tent type stakes that came with it on the four corners and even with the over the top tie downs in our wind it still wasn't enough.
And even then if you hear you're going to get some wind, clean it out overnight and put your plants inside a real building overnight. Unless you just love to pick up plants! I found that out the hard way. I was using this (picture below) had it tied down and still lost it to wind, thankfully when it was already near empty. I found it in the morning after an overnight thunderstorm up against the fence all mangled. We also had cement blocks on the hold-down flaps (they are the things on the ground wrapped in green and green striped cloth). I wrapped them in old blankets and sheet so they wouldn't rough up the cover and that didn't even work to hold it down. I got this thing from farmtek in 2005, and used it for a season, and I know it's built a lot more sturdy than those ones you all have, and it didn't make it here...Not trying to rain on your parade, but just been there done that...
.[IMG][/IMG]



These are a couple of the three greenhouses I've upgraded to now, and still I worry when we've been getting 55-60 mph wind gusts. I have a friend about 25 miles away that lost one of his greenhouses in a storm with 55 mph winds. So far so good, but you still worry...
[IMG][/IMG]

[IMG][/IMG]
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