Answer: Tomatillos are sometimes called the Husk Tomato. They need the same culture as tomatoes, but they develop a large berry that is enclosed in a papery husk. The fruit will be hidden within this husk, rather than visible like tomatoes. When the color of the husk changes from green to light brown, the tomatillos are mature and ready to harvest. You can feel through the husk just how large the fruit is; mature fruit is 1-2 inches in diameter. If the blossoms are falling off instead of producing berries and husks, I'd suspect poor pollination due to cool temperatures. Tomatillos have been cultivated in Central and South America for centuries. They require long, warm days to set fruit. Now that it's mid-summer, your plants should begin to set fruit.
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