DibbleGrowing sweet potatoes: from seed to harvest
Plant slips 3 weeks after last frost when soil is thoroughly warm. Harvest before the first fall frost nips the vines.
Planting dates for sweet potatoes by zone
| Zone | Start seeds indoors | Sow or transplant | Harvest |
|---|---|---|---|
| Zone 3 | not needed | June 5 | September 13 |
| Zone 4 | not needed | May 31 | September 8 |
| Zone 5 | not needed | May 21 | August 29 |
| Zone 6 | not needed | May 12 | August 20 |
| Zone 7 | not needed | May 1 | August 9 |
| Zone 8 | not needed | April 18 | July 27 |
| Zone 9 | not needed | March 22 | June 30 |
| Zone 10 | not needed | February 21 | June 1 |
| Zone 11 | not needed | January 22 | May 2 |
These dates use typical frost dates for each zone. Dibble tunes them to your exact ZIP and lets you adjust frost dates for your own yard.
Companion plants
Good neighbors for Sweet Potato:
Better kept apart:
Family and rotation
Sweet Potato is in the morning-glory family family. Sweet potato. Rotate from the root slot. Learn about crop rotation.
Related crops
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When to plant
Questions
When should I plant sweet potatoes?
It depends on your zone. Sweet Potato is a tender crop, so the timing follows your last spring frost. Look up your zone in the table below for exact start, sow, and harvest dates, or open Dibble and enter your ZIP to get your own calendar.
How long does it take to grow sweet potatoes?
About 100 days from transplant to the first harvest, with a picking window of roughly 14 days after that.
What grows well with sweet potatoes?
Good companions include Bean (bush), Marigold. Keep it away from squash.
Plant at the right time this season
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