Meyer lemon trees are a hybrid citrus tree that is a cross between a lemon and a mandarin orange. Meyer lemon trees are smaller and rounder than regular lemons, with smoother, thinner skin and a sweeter, less acidic flavor. They are also more cold-sensitive than regular lemons, so they are best grown in warm climates. Meyer lemon trees are relatively easy to care for and can produce fruit for many years. They are a great addition to any home garden and provide fresh, delicious lemons all year round.