Let's see those homemade greenhouses.

[wireme]

Not a green house but it would be with a different cover, poly plastic is cheap too. Makes a good tree recovery room.
The structure was pretty much free, small beetlekill lodgepole pine is everywhere here.

 

[jeremy_norbury]

I buy these small €50/$56 things at the cheap supermarket. They last 2-3 years. I use a small heater in there if necessary.
DSC02622 by Jerry Norbury, on Flickr

I get over 150 trees in there during winter
DSC01752 by Jerry Norbury, on Flickr

Lined the roof with bubble wrap
DSC00055 by Jerry Norbury, on Flickr

 

[Redwood Ryan]

Hey Joe,

How many tropicals do you have? Do you really need a greenhouse? Is it possible to just winter them indoors?

 

[CWTurner]

I'm not sure if acer griseum is that cold hardy due to its thin barks.

Micro, Paperbark maple will certainly grow here in Philly. Might be a different story if the tree comes from one of those SC nurseries maybe.
I have a couple (not in pots though). Chase Rosade has a big one up in New Hope at Rosade Bonsai.
CW

 

[abqjoe]

Hey Joe,

How many tropicals do you have? Do you really need a greenhouse? Is it possible to just winter them indoors?

I only have 6 and my garage is heated because of the boiler for my heated floors. But, there's not enough light in there. I have few small square windows in garage with window on the garage doors too but it's still not real bright. I think I have a greenhouse on the way though

 

[Redwood Ryan]

I only have 6 and my garage is heated because of the boiler for my heated floors. But, there's not enough light in there. I have few small square windows in garage with window on the garage doors too but it's still not real bright. I think I have a greenhouse on the way though

But what about the house house? A whole greenhouse for just 6 tropicals seems a tad unnecessary, lol.

 

[_#1_]

Micro, Paperbark maple will certainly grow here in Philly. Might be a different story if the tree comes from one of those SC nurseries maybe.
I have a couple (not in pots though). Chase Rosade has a big one up in New Hope at Rosade Bonsai.
CW

Thanks for the input CW! Come to think of it, the mother tree is right on premise of the nursery. Proving they can thrive here duh! This upcoming winter will be the first for this newb. A bit anxious actually.
Ah yes Rosade Bonsai. Heard of them but I cannot afford the class at 150 a pop

I assume you been there?

 

[abqjoe]

But what about the house house? A whole greenhouse for just 6 tropicals seems a tad unnecessary, lol.

I more than likely will have more coming before winter lol. Plus, the one's I have are good size, some at 25-35 inches tall. I'm just needing a small greenhouse, nothing big.

 

[Don Blackmond]

Maybe consider indoor lighting too? I happen to have 2 indoor lights for tropicals....

 

[vicn]

The structure was pretty much free,

@wireme Were the mushrooms free too? Those are edible, I think

 

[eferguson1974]

I have two greenhouses in Costa Rica. To avoid heat I use shadecloth on top with the plastic. My sides are shadecloth without plastic. It gets warm but everything grows well. Without them I couldnt grow whatever , whenever. Six or more months of rain kill lots of things. Then outside growing in dry season wastes water and has its own problems, like bugs.
I will take pics tomorrow to show my design.