plant issues!! (outdoors)

week 3 of flowering, since she was a small plant been feeding her dutchfest a&b once every couple of months, these effects began just before flowering so i gave her a good drink of superthrive solution (my answer for most of my plant troubles and has worked for me until now) as you can see in the photos dead leaves and branches at the bottom around stem, mid-way yellowing leaves, and at the top still healthy but it is worsening, what does everyone think? and what is a good answer to my problem? thanks for taking the time to have a look!
 

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