Eating locally grown foods comes with a bounty of benefits, from fresher foods to saving both money and the environment. One 2007 study from the University of Alberta, Canada, determined that the transportation alone of organic produce actually causes an environmental impact large enough to cancel out many of its benefits.1

If you look, you’ll find that most of the organic fruit and vegetables in your local grocery store come from much farther away than your conventional produce. Fresh produce in most regions of the U.S. actually travel between 1,500 to 2,000 miles on the road. That’s even higher than processed foods, which are shipped an average of 1,346 miles.2 Eating locally grown foods helps eliminate a substantial amount of the carbon footprint associated with food transportation.

Eating locally automatically means eating what’s in season. This spring, consider adding some of the following superfoods,3 many of which you may never have heard of before. Most of these are only available for a short amount of time, and now’s the time to start looking for them.

No. 1: Morel Mushrooms

Morel mushrooms, the tops of which resemble small shower loofahs, are packed with immune-boosting, disease-preventing vitamin D. Its taste has been described as umami, or savory. Rarely cultivated, morel mushrooms are typically wild-harvested and picking the mushrooms is a popular tradition for many.

That said, avoid picking mushrooms in the wild unless you are absolutely sure you know what you’re picking. There are a number of toxic mushrooms, including a species called “false morels,” and it’s easy to get them confused unless you have a lot of experience and know what to look for.

As noted in a recent study,4 “Morels have been in use in traditional medicine for centuries, due to their health-related benefits, and current research demonstrated their anti-oxidative and anti-inflammatory bioactivities, in addition to immunostimulatory and antitumor properties.”

Most of the health benefits have been attributed to polysaccharides, along with a number of phytochemicals, primarily phenolic compounds, tocopherols, ascorbic acid and vitamin D. Morel mushrooms are an excellent addition cooked with any side dish and go great with all kinds of meat and fish. Many people enjoy eating them as a side dish on their own, gently sautéed for five to 10 minutes with a pat of butter. Never eat morel mushrooms raw, as they contain trace amounts of a toxin that make some people ill.

No. 2: Fiddlehead Ferns

Chances are you’ve never heard of fiddlehead ferns5,6 unless you’re a frequent visitor of farmers markets and specialty health food stores. As the name implies, the small curly discs are picked from immature, uncoiled ostrich ferns. The taste has been likened to that of asparagus, but with bit more crunch and bitterness. Others say they taste like a mix of asparagus, spinach and broccoli all in one.

High in antioxidants (twice the amount of blueberries) and plant-based omega-3, fiddlehead ferns are a potent anti-inflammatory food.7They also contain vitamins A and C, both of which are important for healthy vision and immune function. Iron and phosphorous aid red blood cell production and are important for healthy formation of cell membranes and bone, while potassium supports heart health and electrolyte and muscle functions.

Fiddleheads are commonly picked in Maine and Canada, but can often be found in health food stores. Their season is quite brief — two to three weeks at the most. To ensure quality, look for specimens that have tightly coiled heads with stems about 2 inches in length. If picking your own, make sure you know how to identify ostrich ferns, as they are commonly confused with bracken fern — a species known to cause cancer in lab animals.

Also, fiddleheads may cause gastrointestinal upset when consumed raw, so light cooking, just as you would asparagus, is recommended. They can also be pickled for longer shelf life. For instructions, see this spicy pickled fiddleheads’ recipe by The Spruce.8