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This is for AJ who wanted a better picture of the boom I cobbled together to help with building my barn.  This is the best shot I have.

Boom 2

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I’ve found that the hardest thing about my small greenhouse is keeping it from getting too hot inside.  Even with the end door open, it is often 80 – 90 F inside on a sunny day, which is way too hot for the seedlings I am trying to raise in there.  I made a simple vent out of a couple of scrap 3/4 inch pine boards that I sawed into narrow strips and screwed together along with a spare piece of greenhouse film.

Basically, it is made of just two rectangular frames, one frame an inch bigger on both sides so it can fit around the smaller one.  The bigger frame is covered in plastic.

Frame has been screwed down.

Frame has been screwed down.

The small frame was screwed down to the greenhouse frames on top of the plastic film.  The film was then cut, wrapped around the sides of the frame and stapled.

Vent2Vent3

The bigger frame just sits on top of the smaller one.  There are no hinges.  I just lift it off and slide it in through the opening on sunny days.  I will probably need to hold it down somehow, maybe with a bungee, but that hasn’t happened yet.

The top frame with plastic

The top frame with plastic

Finished

Finished

Now, two weeks later, there really is some green to look at.  You can see spinach in the bucket along with digitalis camelot, knautia, blue bedder salvia, and dianthus amazon in the trays.

greenhouse331

I have to confess that I’m really growing these under lights inside, except for the spinach, and just bringing them out in the greenhouse for short periods of time.  We are still having nights in the 20s and I can’t trust my water buckets to keep it from freezing in there.  According to the maximum/minimum thermometer I have in the greenhouse, it has gone down to 30 right on top of the buckets a couple of times.  I believe that the water in the buckets is just not getting very warm during the day.  I could add a little heater at night.  I’ll have to do something soon, since, as of today, I have twelve flats of plants started, which uses all the room I have under the lights.