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The color of the vine also indicates when to harvest Concord grapes. Throughout the growing season, the vine and stems are a light to medium green. When the vine and stems begin to turn to a light then medium brown, it means the grapes are ripening and ready to harvest.
Mangoes flower in spring, and the fruit matures from October through to April, depending on the variety and the location. The fruit is ready to pick when the skin turns from green to yellow, orange or red (depending on the variety). Itâs also a good idea to pick a sample mango and cut it open. If the flesh next to the seed is yellow, the crop should be ripe in one week and can then be harvested.