South Dakota planting calendar
Using South Dakota’s average last spring frost of May 10 and first fall frost of September 25 — about 138 frost-free days. USDA zones 3b, 4a, 4b, 5a.
For dates tuned to your exact location, use the calendar generator.
| Crop | Start indoors | Transplant / sow out | Fall sowing | First harvest |
|---|---|---|---|---|
| Celeriac | Feb 15 – Mar 1 | May 3 – May 20 | — | Aug 18 – Sep 7 |
| Onion | Feb 22 – Mar 8 | Apr 12 – Apr 29 | — | Jul 18 – Aug 17 |
| Leek | Feb 22 – Mar 8 | Apr 19 – May 6 | — | Aug 4 – Sep 23 |
| Celery | Feb 22 – Mar 8 | May 3 – May 20 | — | Aug 18 – Sep 27 |
| Rosemary | Feb 22 – Mar 8 | May 10 – May 27 | — | Aug 15 – Sep 14 |
| Eggplant | Mar 1 – Mar 15 | May 24 – Jun 10 | — | Aug 4 – Aug 24 |
| Parsley | Mar 1 – Mar 15 | Apr 19 – May 6 | Jul 7 – Jul 24 | Jul 5 – Jul 25 |
| Shallot | Mar 1 – Mar 15 | Apr 12 – Apr 29 | Sep 29 – Oct 16 | Jul 18 – Aug 17 |
| Bell Pepper | Mar 8 – Mar 22 | May 17 – Jun 3 | — | Jul 23 – Aug 22 |
| Chili Pepper | Mar 8 – Mar 22 | May 17 – Jun 3 | — | Aug 2 – Sep 1 |
| Green Onion / Scallion | Mar 8 – Mar 22 | Apr 5 – Apr 22 | Jul 21 – Aug 7 | Jun 11 – Jul 1 |
| Thyme | Mar 8 – Mar 22 | May 3 – May 20 | — | Jul 24 – Aug 8 |
| Oregano | Mar 8 – Mar 22 | May 3 – May 20 | — | Jul 29 – Aug 8 |
| Mint | Mar 8 – Mar 22 | Apr 26 – May 13 | — | Jul 12 – Aug 1 |
| Sage | Mar 8 – Mar 22 | May 3 – May 20 | — | Jul 24 – Aug 8 |
| Tarragon | Mar 8 – Mar 22 | Apr 26 – May 13 | — | Jul 2 – Aug 1 |
| Ginger | Mar 8 – Mar 22 | May 24 – Jun 10 | — | Jan 26 – Mar 27 |
| Turmeric | Mar 8 – Mar 22 | May 24 – Jun 10 | — | Jan 26 – Mar 27 |
| Tomato | Mar 15 – Mar 29 | May 10 – May 27 | — | Jul 16 – Aug 10 |
| Tomatillo | Mar 15 – Mar 29 | May 10 – May 27 | — | Jul 31 – Aug 25 |
| Ground Cherry | Mar 15 – Mar 29 | May 10 – May 27 | — | Jul 26 – Aug 15 |
| Sweet Marjoram | Mar 15 – Mar 29 | May 10 – May 27 | — | Jul 16 – Aug 5 |
| Lemon Balm | Mar 15 – Mar 29 | Apr 26 – May 13 | — | Jul 12 – Aug 1 |
| Shiso (Perilla) | Mar 15 – Mar 29 | May 10 – May 27 | — | Jul 26 – Aug 15 |
| Kale | Mar 22 – Apr 5 | Apr 12 – Apr 29 | Jun 30 – Jul 17 | Jun 8 – Jun 23 |
| Broccoli | Mar 22 – Apr 5 | Apr 19 – May 6 | Jun 16 – Jul 3 | Jun 25 – Jul 20 |
| Cauliflower | Mar 22 – Apr 5 | Apr 19 – May 6 | Jun 16 – Jul 3 | Jun 25 – Jul 25 |
| Cabbage | Mar 22 – Apr 5 | Apr 12 – Apr 29 | Jun 16 – Jul 3 | Jun 18 – Jul 28 |
| Brussels Sprouts | Mar 22 – Apr 5 | Apr 19 – May 6 | May 26 – Jun 12 | Jul 25 – Aug 24 |
| Okra | Mar 29 – Apr 12 | May 17 – Jun 3 | — | Jul 13 – Jul 28 |
| Basil | Mar 29 – Apr 12 | May 17 – Jun 3 | — | Jun 23 – Jul 23 |
| Collard Greens | Mar 29 – Apr 12 | Apr 12 – Apr 29 | Jul 7 – Jul 24 | Jun 13 – Jul 3 |
| Kohlrabi | Mar 29 – Apr 12 | Apr 12 – Apr 29 | Jul 21 – Aug 7 | Jun 3 – Jun 18 |
| Endive & Escarole | Mar 29 – Apr 12 | Apr 19 – May 6 | Jul 7 – Jul 24 | Jul 20 – Aug 4 |
| Radicchio | Mar 29 – Apr 12 | Apr 19 – May 6 | Jun 30 – Jul 17 | Jun 25 – Aug 4 |
| Chayote | Mar 29 – Apr 12 | May 17 – Jun 3 | — | Sep 21 – Oct 21 |
| Malabar Spinach | Mar 29 – Apr 12 | May 17 – Jun 3 | — | Jul 18 – Aug 2 |
| Summer Savory | Mar 29 – Apr 12 | May 10 – May 27 | — | Jul 11 – Jul 26 |
| Pea | — | Mar 31 – Apr 19 | Jul 7 – Jul 24 | May 30 – Jun 14 |
| Spinach | — | Mar 31 – Apr 19 | Jul 28 – Aug 14 | May 12 – May 20 |
| Mache (Corn Salad) | — | Mar 31 – Apr 19 | Jul 21 – Aug 7 | May 20 – Jun 4 |
| Lettuce | Apr 5 – Apr 19 | Apr 19 – May 6 | Jul 21 – Aug 7 | May 26 – Jun 25 |
| Swiss Chard | Apr 5 – Apr 19 | Apr 19 – May 6 | Jul 7 – Jul 24 | Jun 15 – Jun 25 |
| Bok Choy / Pak Choi | Apr 5 – Apr 19 | Apr 19 – May 6 | Jul 21 – Aug 7 | May 31 – Jun 15 |
| Fennel (Bulb) | Apr 5 – Apr 19 | Apr 26 – May 13 | Jun 23 – Jul 10 | Jul 7 – Aug 1 |
| Napa Cabbage | Apr 5 – Apr 19 | Apr 19 – May 6 | Jul 7 – Jul 24 | Jun 15 – Jul 10 |
| Bitter Melon | Apr 5 – Apr 19 | May 17 – Jun 3 | — | Jul 18 – Aug 7 |
| Cucamelon | Apr 5 – Apr 19 | May 17 – Jun 3 | — | Jul 28 – Aug 7 |
| New Zealand Spinach | Apr 5 – Apr 19 | May 10 – May 27 | — | Jul 6 – Jul 26 |
| Peanut | Apr 5 – Apr 19 | May 10 – May 27 | — | Aug 25 – Oct 14 |
| Watercress | Apr 5 – Apr 19 | Apr 19 – May 6 | Aug 4 – Aug 21 | Jun 15 – Jun 25 |
| Luffa (Loofah Gourd) | Apr 5 – Apr 19 | May 17 – Jun 3 | — | Aug 22 – Oct 21 |
| Beet | — | Apr 7 – Apr 26 | Jul 14 – Jul 31 | Jun 1 – Jun 21 |
| Radish | — | Apr 7 – Apr 26 | Aug 11 – Aug 28 | May 4 – May 12 |
| Arugula | — | Apr 7 – Apr 26 | Aug 4 – Aug 21 | May 12 – May 22 |
| Fava Bean (Broad Bean) | — | Apr 7 – Apr 26 | Jul 21 – Aug 7 | Jun 26 – Jul 11 |
| Tatsoi | — | Apr 7 – Apr 26 | Jul 28 – Aug 14 | May 17 – Jun 1 |
| Mizuna | — | Apr 7 – Apr 26 | Jul 21 – Aug 7 | May 17 – May 27 |
| Cucumber | Apr 12 – Apr 26 | May 17 – Jun 3 | Jun 23 – Jul 10 | Jul 13 – Aug 2 |
| Zucchini / Summer Squash | Apr 12 – Apr 26 | May 10 – May 27 | Jun 23 – Jul 10 | Jul 1 – Jul 16 |
| Winter Squash | Apr 12 – Apr 26 | May 10 – May 27 | — | Aug 5 – Sep 4 |
| Pumpkin | Apr 12 – Apr 26 | May 10 – May 27 | — | Aug 15 – Sep 14 |
| Cantaloupe / Muskmelon | Apr 12 – Apr 26 | May 17 – Jun 3 | — | Aug 2 – Aug 22 |
| Watermelon | Apr 12 – Apr 26 | May 17 – Jun 3 | — | Aug 2 – Sep 1 |
| Rhubarb | — | Apr 12 – Apr 29 | — | — |
| Horseradish | — | Apr 12 – Apr 29 | — | — |
| Sunflower | Apr 12 – Apr 26 | May 10 – May 27 | — | Jul 26 – Aug 25 |
| Carrot | — | Apr 14 – May 3 | Jun 30 – Jul 17 | Jun 18 – Jul 8 |
| Turnip | — | Apr 14 – May 3 | Jul 28 – Aug 14 | May 29 – Jun 18 |
| Mustard Greens | — | Apr 14 – May 3 | Jul 28 – Aug 14 | May 19 – Jun 3 |
| Rapini (Broccoli Raab) | — | Apr 14 – May 3 | Jul 21 – Aug 7 | May 29 – Jun 18 |
| Chervil | — | Apr 14 – May 3 | Jul 28 – Aug 14 | May 29 – Jun 18 |
| Chives | — | Apr 19 – May 6 | — | — |
| Asparagus | — | Apr 19 – May 6 | — | — |
| Sorrel | — | Apr 19 – May 6 | — | — |
| Potato | — | Apr 21 – May 10 | — | Jul 5 – Aug 24 |
| Cilantro / Coriander | — | Apr 21 – May 10 | Jul 14 – Jul 31 | Jun 10 – Jul 5 |
| Salsify | — | Apr 21 – May 10 | — | Aug 14 – Sep 23 |
| Borage | — | Apr 21 – May 10 | Jul 21 – Aug 7 | Jun 20 – Jul 10 |
| Globe Artichoke | — | Apr 26 – May 13 | — | — |
| Parsnip | — | Apr 28 – May 17 | — | Aug 11 – Sep 10 |
| Dill | — | May 5 – May 24 | Jul 21 – Aug 7 | Jun 19 – Jul 9 |
| Bush Bean | — | May 12 – May 31 | Jun 30 – Jul 17 | Jul 6 – Jul 16 |
| Pole Bean | — | May 12 – May 31 | — | Jul 16 – Jul 26 |
| Sweet Corn | — | May 12 – May 31 | — | Jul 16 – Aug 25 |
| Edamame (Soybean) | — | May 12 – May 31 | — | Jul 31 – Aug 25 |
| Amaranth (Leaf) | — | May 12 – May 31 | — | Jun 16 – Jul 6 |
| Lima Bean | — | May 19 – Jun 7 | — | Jul 28 – Aug 27 |
| Southern Pea (Cowpea) | — | May 19 – Jun 7 | — | Jul 23 – Aug 22 |
| Sweet Potato | — | May 24 – Jun 10 | — | Aug 29 – Sep 28 |
| Rutabaga | — | — | Jun 9 – Jun 26 | — |
| Garlic | — | — | Oct 6 – Oct 23 | — |
Windows are ~1–2 week bands around each date. Frost dates are a statewide average from NOAA/NCEI normals; your town may differ by two weeks or more. Calendar year 2026.