Greenhouse Shading - What do you use?

[annacruachan]

I have a huge white tarpaulin right over the roof of mine. It's firmly attached to sandbags and was first put up to prevent the gales from moving the greenhouse across the garden and breaking most of the glass! However, it works very well as shading too!

[mrscorpio]

Hi every one.
Right after all of your comments I thought I would firstly try Fleece, This is very thin poundland stuff, which I already had. I am a bit of a scrooge so cheepest option first.
Please look at my piccy and see if you think its ok. This is full 1:30pm sun coming in from the top right. I have only shaded the top right.

[womble]

You need a thermometer to see if you have shaded enough, if it gets too hot, try damping down and maybe some more protection.

[binley100]

Sorry to butt in with a quickie but how hot is too hot please?

[womble]

I've always thought anything over 35c is too hot and if plants start showing signs of stress of course. Tbh I like to keep it as low as possible. I tend to look more at the plants than the thermo, although I am around alot to notice things, for nights and days when I am away, I look at the thermometer.

[mrscorpio]

I've always thought anything over 35c is too hot and if plants start showing signs of stress of course. Tbh I like to keep it as low as possible. I tend to look more at the plants than the thermo, although I am around alot to notice things, for nights and days when I am away, I look at the thermometer.

Hi Womble
I have a Min/Max thermometer and it was showing 31 after the shading went up.
The max prior to the shading was over 35 but, I cant remeber how high exactly. I will keep an eye on it to make sure it doesnt go over 35.

[womble]

Mine went up to 40 yesterday, despite damping down a few times.

[FionaH]

I use windolene works a treat and wipes off easily

[Helgalush]

Sorry if this is a silly question but does the same apply to a blowaway?

[Steve Valentine]

I'm new to all this greenhouse malarky and thought I wouldn't need shading, that was untill thursday when it hit 52 inside the greenhouse

A quick rummage around the garage produced two 12x9 dust sheets, I attached some canes to one end to hold them rigid and hooked them over the ridge of the greenhouse.

Brought the temperature down to around 30, I was ever so slightly chuffed as it cost me nothing

I'm half tempted to make a proper job of it and dye them green to blend in with the garden.

[SarzWix]

Even if the plants appear to be coping with the heat, if it gets too hot the pollen/flowers will get damaged and so the fruit set will be affected. As Womble says, if shading isn't enough, damping down (ie watering the floor of the greenhouse) will help too. Also opening all doors/windows to get a through draft. Better to be slightly chilly than too hot I think, so if you go out and it's cloudy, still lave doors etc open and shading on in case it gets suny later.

[plymouthred]

Even if the plants appear to be coping with the heat, if it gets too hot the pollen/flowers will get damaged and so the fruit set will be affected. As Womble says, if shading isn't enough, damping down (ie watering the floor of the greenhouse) will help too. Also opening all doors/windows to get a through draft. Better to be slightly chilly than too hot I think, so if you go out and it's cloudy, still lave doors etc open and shading on in case it gets suny later.

Thank you for the information.

I have just had my greenhouse installed (12' x 8') and is East-West facing but one corner shaded by Cornish Palm and a small cherry tree (Potting table in this corner).

I have 4 x roof autovents and 2 x manual side vents. I have been checking the temps since it was erected and the max temp has ranged from 14-28 degrees.

Do you think I should consider purchasing shading now or for this year just see how things pan out as I have already forked out a fortune on 'garden accessories'

[Potstubsdustbins]

I use fleece taped to the glazing as shading works well and adds a little insulation at this time of year.

Colin

[bearded bloke]

I use debris netting on mine (got far too much when building the fruit cage)

[lottie dolly]

debris netting is great,is also very durable in use,i use pegs where i can to hold it in place,have tried the white chalky stuff you paint on,it works,but you cannot see out the glass,and it looks a mess,where as the netting can be lifted out the way when the weather changes it's mood,so a lot more practical