Swiss chard
In season here from June through October.
In season in SW Michigan
In season
Months from the MSU Extension seasonal availability guide. Weather shifts dates a little each year.
Key nutrients
Per 1 cup chopped, boiled · 175 g
| Nutrient | Amount | %DV | |
|---|---|---|---|
| Calories | 35 | ||
| Carbohydrate | 7.2 g | 3% | |
| Fiber | 3.7 g | 13% | |
| Vitamin A | 536 mcg | 60% | |
| Vitamin C | 32 mg | 35% | |
| Potassium | 961 mg | 20% | |
| Vitamin K | 572 mcg | 477% | |
| Magnesium | 150 mg | 36% |
FDC ID 170401 · Chard, swiss, cooked, boiled, drained, without salt (SR Legacy)
%DV uses FDA Daily Values for adults and children 4+. Values are USDA lab averages scaled to the serving; your harvest may differ.
Wellness
A cup of cooked Swiss chard has about 35 calories, 572 mcg of vitamin K (477% DV) and 536 mcg of vitamin A (60% DV). (USDA) The NIH Office of Dietary Supplements says vitamin K is important for blood clotting and healthy bones, and that people who take the blood thinner warfarin (Coumadin) should get about the same amount of vitamin K each day. (NIH ODS) In large long-term studies cited by Harvard's Nutrition Source, green leafy vegetables such as lettuce, spinach and Swiss chard were among those most strongly linked with lower risk of cardiovascular disease. (Harvard)
Pick, store and use
- Use
Small leaves and stems can be eaten raw, but larger leaves should be cooked. Cook greens 1–3 minutes, until they wilt. (MSU Extension)
- Store
Wrap unwashed greens in moist paper towels and keep them in a sealed plastic bag in the crisper. They keep about 3–4 days. (MSU Extension)
- Freeze
Pick young, tender leaves, cut off woody stems, blanch 2 minutes, then cool and pack. (MSU Extension)
Where to get it nearby
No farm in our directory lists Swiss chard by name yet. Many farm markets carry more than their listing says, so it's worth asking.
Sources: USDA FoodData Central, FDC ID 170401 · FDA Daily Values · NIH ODS: Vitamin K · Harvard Nutrition Source: Vegetables and fruits · MSU Extension: How to Grow Greens · MSU Extension Michigan Fresh: Greens · MSU Extension seasonal availability guide · Farm list: Farm to Table Growers research (2026).