Generally, no. Cool, humid conditions (38 to 45°F, and 85 percent relative humidity) are best for Irish potato storage. Leaving the potatoes in the ground with a heavy mulch to keep the soil cool will provide good temporary storage if the soil is not saturated and is free of wireworms and grubs. The potatoes would not stay dry enough in the soil to prevent second growth or sprouting. Several weeks at high temperatures can break the rest period in homegrown potatoes after which sprouts will develop on the tuber. All things considered, it is better to dig the potatoes and put them in a cool, damp area.
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