With the winter drawing in it also brings with it the creepy crawlies such a spiders, also the cobwebs that they leave behind. We have heard that Chestnuts (conkers) can deter the spiders from coming in to houses or greenhouses if left in doorways and window sills so we set about putting them in our display glasshouse as the amount of spiders and cobwebs that have formed in them were amazing. 4 weeks ago we wrapped some chestnuts up in netting and attached them to the glasshouse roof. I went over to the display area this morning and in this particular glasshouse there is not a spider or cobweb in sight.
So for us it seems to be working there will be no more getting a face full of cobwebs when walking into the glasshouses.