Apple trees are deciduous fruit trees that are known for their delicious and nutritious fruits. They are typically grown in temperate regions and require a certain amount of chilling hours during winter to produce fruit.

1. Varieties: There are numerous apple varieties available, each with its own unique flavor, texture, and color. Some popular varieties include Granny Smith, Gala, Fuji, and Red Delicious.

2. Growing Conditions: Apple trees thrive in well-drained soil with a pH level between 6.0 and 7.0. They require full sun exposure (at least 6-8 hours of direct sunlight per day) to produce high-quality fruit.

3. Planting: Apple trees should be planted in early spring or fall. They need sufficient space for their roots to spread out, so make sure to provide adequate spacing between trees. It's also important to choose a suitable rootstock for your specific growing conditions.