Pruning questions

Delps8 said:

If they started flower on 7/7, you're about 2 weeks in so my thinking is that you'll be fine but use a light touch. And there's no reason to not continue to keep things tidy underneath. The big win is that you've got a great looking set of leaves - lots of leaves and branches. Those are signs of a plant that's been fed well (lots of light).

Re. hospital - glad you "walked out". I had quite casts and stitches along the way (US Army) and had my hips replaced as well as an MI (three cheers for stents!). I'll be 68 a couple of months and I run half marathons, with my first full marathon planned for December 2025. You can't keep a good dog down.

Click to expand...

Delps8 said:

Jacks 3-2-1 at full strength is pretty strong. I get to 700 or 800 (500 scale) and then back down.

It does look like a mag def. Jacks is a well balanced fert and, if you've had this issue before, it makes me think that it's something in your environment.

Are you familiar with VPD?

VPD can be a big influence on nutrient uptake. If your VPD is high (high temps and/or really low RH), the transpiration rate increases and that can cause an imbalance. My opinion, with the biggest influence coming in the last year or so, is that a lot of growers get hit with nute issues because of VPD being too high. Bugbee and others have commented that they see that a lot when they're called in for consultation.

The key point is that a nutrient imbalance may well not be because of how your mixing nutrients but it is a symptom of something out of whack in the grow environment. Temp and RH (which can be expressed as VPD) are big factors in the grow environment.

What are your temps and RH values? While we're at it, what about water temp and wind speed/fans?

Click to expand...