Greenhouses
Here are the companies and businesses listed under the Greenhouses category.
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C H WHITEHOUSE LTD
CH Whitehouse manufacturers of all cedar wood greenhouses. Cedar greenhouses built to order, from a hexalight to a large bespoke greenhouse. Specia...
www.greenhouse.uk.netDOVETAIL BUILDING DEVELOPMENTS LTD
UK based bespoke and lean-to greenhouses manufacturers, offering a wide range of designs for home garden and commercial use.
www.dovetailgreenhouses.co.ukHALLS GARDEN PRODUCTS LTD
hallsgreenhouses.com. Is this your domain? Add hosting, email and more. ... Register domain names – up to 70% less with the world's #1 registr...
www.hallsgreenhouses.comGRIFFIN GLASS HOUSES LTD
Griffin Glasshouses, beautiful bespoke Glasshouses of quality and distinction
www.griffinglasshouses.comMORRIS POLYTHENE GREENHOUSES
Manufactures standard and vertical single span polythene tunnels and glasshouses.
www.morrispolytunnels.co.ukLocal Greenhouses
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Confused about the greenhouse effect and greenhouses in general for plants?
So, I understand that the greenhouse gases are harmful to the environment, but I'm confused on why greenhouses in which plants are grown are okay for the environment. Do they have any comparison/relationship? I don't know the difference, haha :) Thank you!
Melissa
Question answered by Jeff M
Sagebrush, You learn that the greenhouse effect does not act like a greenhouse in highschool. One wonders why then you are unaware of this. Anyone who studies the greenhouse effect is aware that the greenhouse effect does not act like a greenhouse. You seem to be unaware of this and are instead, once again, stating the things you are unaware of are just part of the vast conspiracy. The greenhouse effect does not occur in a greenhouse and it does not involve passing through glass. It involves greenhouse gases such as CO2, water vapour, methane, CFCs, HFCs, and so on. http://www.youtube.com/watch?v=SeYfl45X1wo The greenhouse effect is a badly named natural effect of the environment and people like Sagebrush use their confusion of the matter to sew doubt because they do not ask questions, as ou seem to be doing, but instead come to their own conclusions based on their ignorance.Do paper greenhouses work on plants too?
How do you make paper greenhouses or cloches? How does the plants grow? Can you use newspaper to make a cloche and put it over the plant?
L0ri3
Question answered by Mary G
I don't know what ELSE a greenhouse works for BESIDES plants.Where are some nice greenhouses to visit in the Boston area?
Does Harvard or any of the other schools have any greenhouses open to the public? Thanks!
Lazyrus
Question answered by bluepotato2
Harvard's greenhouses are strictly for plant biology experiments and are located in the Harvard Forest in Petersham. The do, however have the Arnold Arboretum in the Jamaica Plain section of Boston. see: http://www.arboretum.harvard.edu/ In addition to art, the Isabella Stewart Gardner Museum has a wonderful garden. see: http://www.gardnermuseum.org/Are there any greenhouses that are warmed entirely by geothermal means?
I am curious as to the viability of greenhouses in colder climates producing food year round that are heated entirely by geothermal. My understanding is that geothermal can provide heat to about 54 degrees f. So, a follow-up question would be, are there food crops that will produce at those temperatures?
mark
Question answered by snorkweezl
Good question. I don't know of any, but there's no reason why there couldn't be. That said, I'm not sure it would be all that cost effective to install a geothermal system just to run a greenhouse, even if you use that energy to grow all your food. If you heat your house that way as well, that'd be a different story. I'm also not sure it'd be all that necessary to heat a greenhouse that much unless you live somewhere really frigid. Personally I think the cheaper way to go would be to lay a radiant subfloor in the greenhouse, and run it with a solar water heater. Cheaper yet would be a solar powered space heater. As far as your question about plants growing at 54 degrees, yes, just about anything would grow at that temperature (although much more slowly than at say 84 degrees). As long as they don't freeze, most edibles are pretty happy. Bear in mind though that a greenhouse is designed to heat itself when the sun is out, so it would likely heat up to above 54 degrees on a sunny day without too much trouble.Why they build greenhouses with opaque white plastic cover?
Why they build greenhouses with opaque white plastic cover? Isn't supposed that the more day light, the better for the plants? White color plastic cover on the top of the greenhouses create a shadow all day long. Why don't they put transparent plastic covers on the top?
Alien Alien
Question answered by cbsteh
It depends on your location's climate and the purpose for your greenhouse. Clear plastic allows not only more light but more direct (beam) light into the greenhouse. Opaque plastic lets in lesser light but more diffuse light into the greenhouse. More direct light in the greenhouse could mean "hot spots" in your greenhouse where one area of your greenhouse is much warmer than the other parts (i.e., uneven warming). Diffuse light, because it comes from all directions, results in more even warming in your greenhouse. Compared to direct light, diffuse light also provides more even lighting to your plant's foliage and could bring increased photosynthesis rate and increased growth and yields. You generally opt for clear plastics if you are planning to use your greenhouse to germinate and grow sun-loving plants before they are transplanted outside. Use opaque plastics for germinating and growing plants fully inside the greenhouse. Unless you have access to a computer model, there would be some degree of trial-and-error involved because the best choice ultimately depends on the light intensity and temperature achieved when your greenhouse is complete. You can choose a mix of clear and opaque plastics to get the balance right, depending on how sensitive your plants.Why they build greenhouses with opaque white plastic cover?
Why they build greenhouses with opaque white plastic cover? Why they build greenhouses with opaque white plastic cover? Isn't supposed that the more day light, the better for the plants? White color plastic cover on the top of the greenhouses create a shadow all day long. Why don't they put transparent plastic covers on the top?
Alien Alien
Question answered by cyswxman
The cover allows the shortwave radiation from the Sun to pass through and into the greenhouse. That radiation is absorbed by the interior and ground which in turn warms. The heat (longwave radiation) is trapped by the same covering, thus allowing the greenhouse to remain warm.Why they build greenhouses with opaque white plastic cover?
Why they build greenhouses with opaque white plastic cover? Why they build greenhouses with opaque white plastic cover? Isn't supposed that the more day light, the better for the plants? White color plastic cover on the top of the greenhouses create a shadow all day long. Why don't they put transparent plastic covers on the top?
Alien Alien
Question answered by bravozulu
"Polyethylene Film Polyethylene film is a thick, flexible material that comes in sheets of various thickness (measured in mil) that can be used in single or double layers (for better insulation). A quick and inexpensive option for growers, FarmTek's high quality greenhouse film has ultraviolet (UV) protection and offers excellent tensile strength durability. Polyethylene plastic greenhouse film translucency diffuses light well, bouncing the available sunlight and reducing shadows, both of which aid plant growth. Poly film is also easy to install with homeowner tools and modest building skills. " http://www.farmtek.com/farm/supplies/cat1;;ft1_greenhouse_covering_2.htmlWhat cam I grow on the lower shelves of my greenhouse?
I live in England now and bought a plastic greenhouse to grow my peppers and tomatoes. There are shelves built into the frame and I'm trying to decide what to grow there. I worry that anything grown on the lower level will have sun blocked from the higher levels. Then again, I see lots of multi-tier mini-greenhouses, so maybe I'm worried about nothing. Any advice? I have though about growing lettuces, spinach or even bush beans, but worried they would get too warm.
Stephanie
Question answered by whiteraven.1964
most lettuces spinach and greens like the outside cold temps best.if its too warm for them your just asking for trouble.alot of tiers in greenhouses are mechanized to get all plants same amount of light.some benches are made in a way that lower tier is made farther away than the others.you can get some part shade plants maybe here is a list if it helps http://www.thegardenhelper.com/ps~perennials.htmlHow early can you start growing seed in an outdoor greenhouse in Pennsylvania?
Was considering buying one of those Portable Miniature greenhouses (5 shelf rack covered with the thick plastic covering) on wheels. Would like to use it for starting flower/vegetable seeds but wasn't sure when to put it outside (how cold is too cold?)
joeflaherty
Question answered by fluffy the wonderdog
if you place the greenhouse along the south wall of a house so that it has protection you could probably place it out there in march. but if you have a cold frame with ground heat cables you could start up in February. also it depends on the type of seeds you are starting peas are very cold hardy as are some perennials. all in all you don't gain much with a little greenhouse as far as seedling production because of the variable temperatures that you will have in the small space.Can I itemize a greenhouse when I file my taxes?
My husband has a full time job as an operator with a construction company. I have been a homemaker. We bought a greenhouse in 2008, and we are planning to market organic vegetables. My question is, can I use my greenhouse as a tax deduction, even though it hasn't really made us any money yet, or will that put up a red flag because my husband's job isn't related to greenhouses?
Marj
Question answered by Ed Atun
It is a red flag because you are not really operating as an Organic Produce Marketer. Don't itemize the greenhouse yet..
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