Sometimes I get more herbs.

I notice that when I am on my homestead picking herbs I will occasionally hit a sweet spot where I get eight herbs instead of the usual five. I have no props beside my plants (if I did then I'd get six normally or when I'm in the sweet spot I'll get nine.) Can anyone explain to me why this happens? I thought it might be something to do with the time of day but I've gotten eight herbs at different times as well as on friends homesteads. I really can't explain it and I can't find any information on it either. Thanks

'When entering a homestead, hidden Weather effects may be present. These provide a bonus to production skill success rate and may cause homestead herb patches to yield more herbs.'

https://wiki.mabinogiworld.com/view/Homestead#Accessing