Hi, im on my second grow but first try with white widow and am having the same problem. I am two weeks and one day into flowering. Yellowing started at the bottom inner and is working upwards inner and have also got the stem colours. A growery diagnostic website led me to a lack of nitrogen so i upped the feed. Plant magic (organic) Bloom N-P-K 3-5-4. 2 to 5 ml per litre of water. I was feeding at 2ml per litre of water with bio silicon and root stimulant also at lowest dilution. I upped the feed to 4ml per litre and kept additives the same. A few days later (today) she is a lot worse and has developed other problems which i hope to upload photos to this post but are localised in the same places. Ive always been worried about the PH as i dont quite trust the hydro shop im buying from so a test kit.
Long story short... Tap water PH 8 Tap water filtered and left to stand for 24hrs (chlorine evaporation) PH 7.5 Flower Solution PH 6.5 Run off PH 6.5 - 7.0 (These are my best judgements from the PH test kit Colour chart) My soil is Gold Label Special Mix Substrates which my best guess is near 7.5. The hydro shop said enough nutrients for 2-6 weeks dependant on pot size just water until plant begins to yellow (which means PH 7.5-8.0) Into flower and first week looked very good except some temperature issues(now resolved) and a progressive worsening to today. Im worried its nutrient lockout as 6 weeks PH 7.5-8.0 down to 6.5 and different climate sounds like one big shock. Good news is shes definately female :thumbsup: and flowers so far look fantastic. Propogation so far so good took 4 from the lowest part with a tiny flower and am hoping they start to veg again.
d0ct0r
d0ct0r Reviewed by d0ct0r on . yellowing leaves and red stems hey my girls have had stems turning red for some time now, never seemed to effect anything. but now leaves are turning yellow and on my whit widow the top leaves have some holes....chacked for pests, didnt see anything, seemed to happen over night....im about three to four weeks into flowering...any sugesstions? this is my first grow Rating: 5