You can find a miniature or dwarf version of almost any type of fruit tree, but dwarf citrus trees are the most common. Dwarf fruit trees can be grown in containers since they're smaller than standard-sized fruit trees; they can also be planted directly in your garden.
Depending on your location and the type of dwarf fruit tree you've planted, you may have to move the tree indoors for the winter to avoid frost damage. Heartier fruits like apples can tolerate winter frost, while citrus trees cannot.
To properly fruit, your dwarf tree needs regular sunlight or an indoor grow light. If you are going to plant your dwarf fruit tree outside, choose an area that receives full sun. If you plant your dwarf fruit tree in a container, keep it in a sunny location such as a patio, porch or a southern-facing window to maximise sunlight.
According to the Gardening Know How website, dwarf fruit trees perform well in sandy soil and benefit from seasonal fertilisation. Fertilise every 4 to 6 weeks during the growing season. To prevent root rot, your trees need a well-draining soil and a container with drainage holes.
To prevent limbs from breaking due to heavy fruit, you'll need to thin fruit clusters to one or two pieces of fruit. This is typically done when the fruit grows to the size of a grape or a golf ball.
Dwarf trees need regular pruning to prevent suckers from growing and to thin out the canopy to allow light and air circulation. Indoor dwarf trees can be pruned at any time of year; outdoor trees should not be pruned in winter.
The website Gardening Know How recommends watering your dwarf citrus tree whenever the soil has dried out. Watering too frequently can cause root rot if you don't have a well-draining soil.