After what
@Aussieaceae said in a previous post I have thought about spraying potassium silicate some more. While I do think it is effective at preventing PM, I think it should be stopped at least 3 - 4 weeks prior to harvest. I did some research on potassium silicate residue and combustion. There is very little information available on the topic but I do know that the silca forms a thin layer on the plant material. Like most things, that residue will degrade and break down over time so 3 - 4 weeks should be sufficient time for it to dissipate and with a final washing of the bud there should not be any remaining residue on the bud.
I wanted to make this post to amend my "Spray up until harvest comment" I made previously. I do not think that is a good idea and I will not be doing that. One of the good thing about sites like this is that when questioned it allows you to rethink what you're doing and after further consideration I do not feel that spraying potassium silicate up until harvest is a good idea.
But I have found a solution for my 8 ft outdoor plant. I forgot that my living room has a vaulted ceiling so I'm just going to bring it inside at night and when it rains. My main concern hasn't necessarily been the rain but the cold humid nights. Fortunately the plant is in just a 3 gallon pot so it's easy to move.
Anyway, good luck to everyone else trying to keep their outdoor plants from rotting away. I shouldn't be dealing with this issue but I thought I had planted a quick flowering Ruderalis Indica but instead planted a Ruderalis Indica + Panama cross I made. I will not be growing this strain outdoors in Northwest Oregon again. It takes too long to finish and makes absolutely no sense growing it outdoors as it takes too long to flower.
Strain selection when growing outdoors should be based mainly on finishing time. It makes absolutely no sense to grow a strain that won't finish before the weather becomes a problem. Which is why I've been working on a few crosses that finish in September. A friend that grew a cross I made harvested his outdoor a few weeks ago without any bud rot and now is sitting on a couple pounds of sticky bud. I made a bunch of feminized seeds of that strain and will be growing one myself outdoors next summer along with some auto's that I know with finish by the end of August. I'm not a big auto fan but they are good for outdoor grows. I'd never grow them indoors but they do have their place. I'm also thinking about working on my own auto as I have some landrace auto/semi auto genetics to work with.
Good luck to all with your harvest.
