I am planting some fall potatoes in 2 very large pots. I have not tried this before. I have known people who used old tires to mound up around their potatoes but that was always in spring. I found this from the extension office for Kansas. Just an FYI for those interested.
Quote:
Potatoes for a fall crop definitely need to be “healed”
because seed pieces rot readily in hot summer soil. If the soil is
dry, water regularly to moisten and cool the surface, and plant
3 to 4 inches deep.
Watering is critical to ensure even emergence. In addition,
regular watering through August is important, when temperatures
are hot, winds strong, and rainfall often deficient.
Potatoes planted in June or July should be ready to harvest
in early to mid-October or can be stored in the ground until
December and dug as needed. Fall-planted potatoes are
excellent for winter storage. In addition, fall-grown potatoes
are crisper or firmer. Specific gravities are generally 10 percent
higher than those from spring-planted crops, but yields are
generally lower. Vitamin C content is usually highest after
harvest, so fall potatoes should contain more vitamin C through
the winter storage period.