Feeding My Baby

Same issue with a small plant in a big pot as always.... You'll have to be careful of how you fertilize areas that don't have roots, yet... if the plant isn't absorbing it from that area, you are adding more each time you irritage, even with runoff. So, It's difficult to water evenly with an oversized pot for the plant. As it grows you can simply do as anyone else does... water throughoughly when top 1" is dry... maybe 2" in a pot that large? So irrigate with runoff upto 20% to ensure entire substrate is saturated and no dry spots repelling water, because that provides the same benefits as it does in a smaller pot as far as avoiding buildup of nutes and maintaining pH/saturation etc etc.. Just becareful of how much nutes you put in wher ethe plant is yet to grow roots. If you see the plant all of a sudden get dark or show other signs of initial toxicity, stick to pH'd only irrigation for a while. It's roots have grown into an area with too much built up. Concentration of your fertilizer should not change due to pot size. You will feed more gallons, but concentration should remain in an optimal range -- hopefully your brand gives that in its instructions, some like to suggest overfeeding, like FF brands. Those are inferior products that do that. I'd irrigate/feed as you normally would in a smaller pot, but only near the plant -- slowly widen that circumfrence around plant that you care about over time and as it grows. Re-hydrate edges of pot wiht ph-only irrigation, no nutes. See a fade? feed bit more and wider circle around plant... any darkness and you know it's getting too much.