Kumquat

Shrub

Kumquat

Citrus japonica

Also known as: Fortunella japonica, Fortunella margarita

Shrub Rutaceae EdibleMedicinalPollinatorWildlife AttractorBorder Plant
Hardiness Zone
8-11
Ideal Temp
60°F–85°F°F
Survives Down To
18°F°F
Life Cycle
Perennial

The Kumquat is a small, evergreen tree or shrub, typically reaching heights of 2.4 to 3.6 meters (8 to 12 feet). It features glossy, dark green leaves and bears fragrant white flowers, either singly or in clusters. The bright orange-yellow fruits are oval or round, measuring about 2.5 centimeters (1 inch) in diameter. Unique among citrus, the sweet, edible peel contrasts with the tart flesh, and the fruit is often consumed whole. Kumquats thrive in well-drained, sandy soils with a slightly acidic to neutral pH. 🌞💧 Sun and Water Requirements: Kumquats require full sun exposure, needing at least 6 to 8 hours of direct sunlight daily. They prefer consistent moisture but are sensitive to waterlogged conditions. Regular watering is essential, especially during dry periods, to maintain soil moisture without oversaturation. ✂️🫘 Methods to Propagate: Propagation is commonly achieved through grafting onto compatible rootstocks to ensure desired fruit characteristics and disease resistance. Seed propagation is possible but may not produce true-to-type plants and can result in variable fruit quality. 🧑‍🌾👩‍🌾 When to Harvest: Harvesting typically occurs from late fall to early spring, depending on the variety and local climate. Fruits are ready to pick when they have developed full coloration and detach easily from the branch with a gentle twist.

Good Neighbors
  • Marigold
  • Nasturtium
  • Basil
Cautions
  • Walnut
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Asian Citrus Psyllid
Diaphorina citri
Broad Mite
Polyphagotarsonemus latus
Brown Citrus Aphid
Toxoptera citricida
Citrus Canker
Xanthomonas citri subsp. citri
Citrus Greening
Candidatus Liberibacter asiaticus
Citrus Leafminer
Phyllocnistis citrella
Citrus Mealybug
Planococcus citri
Citrus Red Mite
Panonychus citri
Citrus Root Weevil
Pachnaeus litus
Citrus Rust Mite
Phyllocoptruta oleivora
Citrus Whitefly
Dialeurodes citri
Leaf Curl
Taphrina deformans
Oriental Fruit Fly
Bactrocera dorsalis
Rust Mite
Eriophyidae
Scale Insects
Coccoidea
Swallowtail Caterpillar
Papilio polyxenes
Texas Citrus Mite
Eutetranychus banksi