Growing Potatoes in Boxes
I built 5, 3x3x4 potato boxes, planting a different variety in each box. I "hilled" with soil, compost and straw mixture. I coiled a soaker hose up the inside of each box and kept the plants well watered. The early maturing varieties did poorly with potatoes only in the first 12'' (7- 10 lbs/ box) The later maturing did better, (17-23 Lbs / box) the Purple Peruvian did the best with 30 lbs. But, even these were concentrated in the bottom third of the box. Any ideas how to increase my yield?