@Jch783 there are too many variables involved to give you more than just a guess mate
best option is to check out similar diaries and see what they did and how much they got and try to
emulate their effort
if you want a ballpark figure then I would say an average of 2-3 ounces per plant
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Cheers,
Guessing before harvest is extremely difficult as you loose so much mosture from the buds when drying. Unless you're familiar with the strain. Once you've weighed straight after the chop you can kind of do a guess by working out a quarter to a fifth of that weight
Max 70 from biggest, 40-50 from rest if you sort your issues, pistils going brown too early, top leaves loosing green ... Lights too close ???
All the best !!!