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They're also low-maintenance trees, he says. Check your geographical region hardiness zone to know whether you can plant directly in the ground or if you need to grow them in containers, says Trejo.

After about 15 years, it can be five metres for a grapefruit, down to 2 to 3 metres for a mandarin on ... planting a general lime tree, just remember it has thorns so plant it somewhere that ...