Avocados are tropical plants (they're native to southern Mexico), so you can also plant avocado trees in the ground outside in USDA Zones 10-12, a.k.a., regions with no frost.

Additionally, staking may be necessary to support the tree in its early years. All you need to propagate your own avocado Avocado Starter Glass Price: $21.99 Bamboo Toothpicks Price: $5.99 ...

Q: I planted two new four-foot avocado trees in the last two weeks. Some of the leaves are turning brown and falling off. I am in zone 9.