Growing sweet potatoes in zone 5
Sweet potatoes grow from slips (rooted cuttings), not seed — order them or sprout your own from a store tuber. Plant well after frost into warm soil, then dig before soil temps drop in fall and cure for sweetness.
Zone 5 covers southern New England, Great Lakes, Iowa, Nebraska, Colorado Front Range — a classic four-season garden climate with room for spring and fall plantings. Zone dates are medians: frost timing varies within a zone with elevation and terrain, so treat these windows as a solid default and refine them with your own city’s dates below.
Make it local
These windows use zone 5's typical frost dates (last frost ~Apr 22, first frost ~Oct 12). For windows computed from your frost dates, run the ZIP code frost lookup and open the planting calendar — it remembers your city. The seed starting scheduler turns the whole seed rack into one printable, date-sorted list.
Frequently asked questions
When do I plant sweet potatoes in zone 5?
Transplant May 6 – May 20, counted from zone 5's typical last frost around Apr 22. It has no frost tolerance — a late frost after planting means covering it or replanting.
Can I direct sow sweet potatoes in zone 5?
Not usefully in zone 5 — sweet potatoes needs more growing time than direct sowing allows, which is why it's raised from transplants .