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7 votes

Plastic sheet for greenhouse

With greenhouse plastic there are some issues to keep in mind. First, if you are considering a longer term installation then UV light will quickly shatter regular plastic. UV resistant plastics are ...
Colin Beckingham's user avatar
5 votes
Accepted

How do you grow a plant not in your hardiness zone?

Growing plants in different climate zones can be a challenge. For people in warm climates. The first thing you need to do is make a plan. And research the climate your plant grows in likes. At our ...
David Wisniewski's user avatar
5 votes

What color should a greenhouse be?

While looking for an answer to this question myself, I came across this article which talks about actual studies that have been done regarding the colour of plastic greenhouse covers. In particular it ...
DuncanKinnear's user avatar
5 votes

What color should a greenhouse be?

Several of the answers here are incorrect. Green plastic absorbs green light or reflects it which is why it appears green. Green is chosen because if you want to reduce the light intensity to the ...
Graham Chiu's user avatar
  • 23.4k
5 votes
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How can I tell if my greenhouse plastic film is facing the right direction

It depends somewhat on "WHAT" the inside/outside properties are. If they include an "anti-drip" or AD coating, that should be on the inside, and you might be able to see that water beads up less and ...
Ecnerwal's user avatar
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5 votes
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Big cactus identification and how long does it take?

The two plants on the left are either Carnegiea gigantea or Saguaro or Pachycereus pringlei or Mexican/Sonoran Saguaro. They look very similar at this stage. They look to be 10-15 years old. My ...
Tim Nevins's user avatar
  • 3,268
4 votes

What chemicals react with greenhouse plastic and cause it to turn white?

I know this is an old post but I want to thank you Brian for bringing this very important and potentially costly topic to our attention. I am going through this same experience setting up 2 low ...
toesmcfoot 's user avatar
4 votes
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Should rain water be allowed to flow directly into greenhouse?

One of the cool features of greenhouses is that you have more control. Storing water makes more sense rather than hit or miss by rain...to include over watering. Our gardens are always going to be ...
stormy's user avatar
  • 40.5k
4 votes
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How to setup a green house that loses heat but not humidity

One solution I've seen to balance the temperature in a green house without requiring you to vent is using an earth-air recirculating system or geothermal heat pump. A very simple DIY version if you ...
greggles's user avatar
  • 1,479
4 votes
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Is 90% - 95% humidity too much for mint / basil / tomatoes?

A greenhouse should have roughly 50-70% humidity depending on what you are growing. Yes your humidity is far too high. As far as throwing the thing away I would say no. It is still perfectly usable ...
Rob's user avatar
  • 1,670
3 votes
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Building Gothic High Tunnel (Elliot Coleman style) in Alaska

There is 28 pages of guidance with many images at Building the Gothic Modular Moveable Tunnel Designed By Eliot Coleman at Four Season Farm courtesy of Johnny’s Selected Seeds. It is both copyrighted ...
pnuts's user avatar
  • 96
3 votes

How to setup a green house that loses heat but not humidity

Humidity is NOT a necessity for most plants. In fact, humidity causes huge fungus among us in green houses! Blowing fans 24/7 is critical. It is no big deal in electricity but humidity will not at ...
stormy's user avatar
  • 40.5k
3 votes

Should rain water be allowed to flow directly into greenhouse?

Two things: Most rainwater collection systems have a diverter to allow the first few minutes of rain to NOT go into the collection barrel, or what have you. This first water tends to have a lot of ...
Tim Nevins's user avatar
  • 3,268
3 votes

What color should a greenhouse be?

There are other questions to ask. Where are these Green covers coming from and which market were they designed for? Perhaps for example these green plastic greenhouses were made in China. Now since ...
Izzzzzz6's user avatar
3 votes

What are colors other than clear suitable for avoiding the heat inside a greenhouse?

I've used a product called Aluminet here in Phoenix, AZ. It's a shade cloth available in a variety of shade levels. It reflects some light and diffuses the light passing through, so it' different than ...
Tim Nevins's user avatar
  • 3,268
3 votes
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Are green plastic bottles suitable for making a cold frame/greenhouse?

A clear film will transmit the most amount of light. Blue and green coloured plastics will transmit a lot of the light in the blue to blue-green wavelengths, but cut out much of the light in the red ...
Graham Chiu's user avatar
  • 23.4k
3 votes
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Greenhouse positioning

In my opinion you should determine which position has the longest photo period throughout the year. The variations between the morning and evening positions are affected by the shape, location and ...
Tim Nevins's user avatar
  • 3,268
3 votes

Should I make a mini-greenhouse for my temperature-sensitive bonsai?

Fukien Tea is a tropical plant and is one of the few species that can be successfully grown indoor as a bonsai. However, keep in mind indoor bonsai is much more difficult than growing outdoor bonsai. ...
benn's user avatar
  • 13.2k
3 votes

Recommendations for how to equip a small home greenhouse?

I would put in electricity , water, and at least one window that opens so it can cross ventilate with the door. I made a floor of leftover house brick , no mortar, so any water just runs through it. I ...
blacksmith37's user avatar
  • 8,784
3 votes

Recommendations for how to equip a small home greenhouse?

There are actually 3 types of 'extending the season' type structures to consider. You must already have the out of doors garden with raised or fluffed up 'permanent' beds with walkways that contain ...
stormy's user avatar
  • 40.5k
3 votes

How to safely keep plants in greenhouse at low temperatures

I have gardened for years,too many to count. The most success I have had has been to keep the greenhouse area above 10 celcius at night, water your plants so they do not take up all the moisture when ...
Helene's user avatar
  • 31
3 votes

Plastic sheet for greenhouse

I used clear plastic, but it became translucent in one or two years. On many climate, clear plastic (and clear glass) is too much in summer. Translucent is often a good compromise for winter and ...
Giacomo Catenazzi's user avatar
3 votes

Floor for greenhouse

I used bricks set on a sand bed. It has worked well for 15 years. Any water spills just disappear, and I drain few gallons at a time from aquariums. You can "sweep" in sand to fill joints if desired. ...
blacksmith37's user avatar
  • 8,784
3 votes

Growing celosia outside in the UK

Celosia are half hardy annuals in the UK; they can be planted outdoors as part of a summer bedding scheme, but they are frost sensitive and need hardening off prior to planting out; they need a warm ...
Bamboo's user avatar
  • 135k
3 votes
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Growing Piel de Sapo melons stalled

To answer my own question, the melon was not growing anymore because the stem to it had died. However, as I mentioned it had matured even at that size and I decided to cut it open and have a look. I ...
Alan Spark's user avatar
3 votes
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Why are my indoor grown Loquat saplings, grown from seeds, getting wilted and blackened leaves and dying?

You don't say what part of the world you are in, although you must be in the northern hemisphere since you mention ice and cold weather arriving. Loquat trees are not deciduous, so leaf loss should ...
Bamboo's user avatar
  • 135k
2 votes

What color should a greenhouse be?

Caveat: This answer assumes that the green plastic shown is pigmented green and thus transmits green light into the greenhouse. Certain metal coatings could reflect green light but transmit blue and ...
Dean Earlix's user avatar
2 votes

What color should a greenhouse be?

Chinese-made greenhouses use green plastic to communicate to uneducated consumers that they are greenhouses. It is mostly a marketing tool by people who don't know physics. Green filters do not ...
Jason Arthur Taylor's user avatar
2 votes

What color should a greenhouse be?

You are not likely to find a clear PVC cover (as in the OP second photo) that will survive sunlight for more than one season. The green one (as in the OP first photo) looks like a polyethylene mesh ...
Bulli's user avatar
  • 21
2 votes

For a Greenhouse, would PE plastic cloth be suitable for a cheap sollution?

Ive found the 303 formula from walmart has plastic protection and have looked into pe cloth also formidable to pp cloth. It is tear resistant and sun resistant for a good hope of 4 years. But its ...
brandon's user avatar
  • 259

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