I fed most plants with a light round of Jack’s 20-20-20. A few potato plants in the south-side grow bags are showing some wilting and brown leaf edges, which surprised me given the cool weather and daily watering. I usually water grow bags lightly each day, not deeply, but the low humidity and wind over the last week might be drying them faster than I thought.
My plan is to add more compost and mulch and switch to watering every other day to encourage deeper roots. I’ll stretch the interval more if the plants handle it. I’m also going to start adding vermiculite to future grow-bag mixes to help retain moisture; until now I’ve mostly relied on perlite and pumice with coir or peat.