The Fukushu kumquat tree, scientifically known as Fortunella obovata 'Fukushu,' is a small evergreen citrus tree that belongs to the Rutaceae family. It is a popular cultivar of kumquat that is known for its attractive appearance and delicious fruit.
 
The Fukushu kumquat tree typically grows to a height of around 6 to 10 feet (1.8 to 3 meters) when mature. It has a compact and rounded growth habit, making it suitable for small gardens or container planting.
 
The leaves of the Fukushu kumquat tree are small, oval-shaped, and glossy green. They provide an ornamental backdrop to the tree and emit a delightful citrus fragrance when touched or brushed against.
 
The fruit of the Fukushu kumquat tree is small and oblong in shape, resembling an olive or a small lime. The thin, smooth skin is bright orange when fully ripe. The unique characteristic of the Fukushu kumquat is its flavor profile. It has a sweet, aromatic taste with a slightly tart undertone. The flesh is juicy and typically contains several small seeds.
 
Fukushu kumquats are often harvested when fully ripe and can be enjoyed in various ways. They can be eaten fresh, including the entire fruit, as the skin is sweet and edible. They can also be used in cooking and baking, added to salads, used in cocktails, or turned into marmalades and preserves.
The Fukushu kumquat tree is well-suited to subtropical and Mediterranean climates. It thrives in full sun exposure and well-drained soil. With proper care, it can produce an abundance of fruit, typically ripening in winter, adding a vibrant splash of color to the tree.
 
In summary, the Fukushu kumquat tree is cherished for its compact size, attractive appearance, and deliciously sweet fruit. It is a popular choice for both ornamental and culinary purposes, bringing beauty and delightful flavors to gardens, landscapes, and containers.