Colloidal silver how late in the grow.

[MicroRoy]

How late in the grow could we wait to use colloidal silver?
With still expecting at least a few viable seeds?

 

[DoubleTripleOG]

IME it takes a good 2 weeks of spraying to get the plant to reverse. Then another week for the pollen to start dropping. That's 3 weeks into flower right there . So I wouldn't wait much after week 2 of flower if your in it, to get fem seeds from that batch.

I'm sure you could wait longer. But then your gonna have to flower the plants longer to allow the seeds to finish.

 

[MicroRoy]

Thanks.