Tomatillos benefit from companion planting with basil, marigolds, and nasturtiums, which can help deter common pests while attracting beneficial pollinators.
Gardeners should be aware that tomatillos belong to the nightshade family, and as such, they should not be planted near fennel or other nightshades like potatoes and eggplants to reduce competition for nutrients and minimize disease pressure5.
Tomatillos are ready for harvest when the papery husk turns from green to tan or brown and the fruit fills the husk completely.
The fruits can be stored in their husks in a cool, dry location for several weeks or refrigerated for extended freshness.
Culinary applications are diverse, with tomatillos being essential for salsa verde and other traditional Mexican sauces4. These fruits have a light, citrus flavor that makes them excellent for both raw and cooked preparations, including smoothies, soups, and baked dishes4.
The Solanaceae family contains cholinesterase-inhibiting glycoalkaloids that can affect sensitive individuals, though these compounds are generally concentrated in the foliage rather than the fruit6.
Tomatillos are low in calories yet rich in dietary fiber, vitamin C, and potassium, which support immune function and electrolyte balance4. Remarkably, research has identified that wild tomatillo (Physalis longifolia) contains at least 14 unique anti-cancer compounds known as withanolides2. Laboratory analysis has demonstrated that these compounds target multiple cancer types including melanomas, breast cancer, pancreatic cancer, and glioblastoma brain tumors, with animal trials showing significant tumor reduction without toxicity2.
While edible nightshades like tomatillos offer substantial nutritional benefits, individuals with autoimmune conditions or nightshade sensitivity may wish to monitor their consumption, as some researchers have noted potential inflammatory responses in sensitive populations6,7. For those without sensitivities, incorporating tomatillos into a balanced diet provides valuable phytonutrients and antioxidants that support overall wellness7.
