doublejj
Well-Known Member
Heay bro, the actual greenhouse plastic films are treated but I don't think it blocks UVB or they wouldn't use it for greenhouses. All flowering plants use UVB, no one growing flowers would use it, if it blocked all UVB.
The plastic from HD works well, it just falls apart about 1/2 way thru the season.
peace
doublejj
The plastic from HD works well, it just falls apart about 1/2 way thru the season.
peace
doublejj