I've read some places that you should continue to give veg nutrients during the stretch phase of flowering so they have adequate nitrogen but others say to switch to flowering nutes when you switch the light schedule.
I'm growing purple haze by ilgm in FFOF soil and using the fox farm nutrient trio (big bloom, grow big, & tiger bloom).
Thanks!
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Different phenos will act differently when it comes to the uptaking nutrients around the flip. IMO it's a guessing game; some of the plants can take the new ratio of nutrients right away while others will act hungry for nitrogen if you switch right away. I look at the color of my plants leaves when making that determination. If they are dark green then I switch nutrients right away, if they are on the lighter side then I may continue veg nutrients for a week or two.
Yes, switch. I personally do a week or two extra of cal-mag after flipping, depending on the strain/pheno.