Fruit Tree
Kumquat
Citrus japonica
Varieties We Carry
Centennial VariegatedCitrus japonicaNagamiCitrus japonicaMeiwaCitrus japonica
Sizes & Pricing
3 galFrom$39.95
5 galFrom$99.95
Fresh this week. Last restocked Mar 9.
LightFull Sun, Part Sun
WaterModerate
Mature size8-15 feet × 6-10 feet
About Kumquat
Kumquat (Citrus japonica) is a compact evergreen citrus shrub or small tree native to China, producing small oval fruits with edible sweet rind and tart flesh. It is popular as an ornamental container plant and for fresh eating, preserves, and garnishes. Starting at $39.95.
Plant details
- Bloom Season
- Spring
- Flower Color
- White
- Growth Rate
- Slow
- Foliage
- Evergreen
- Soil
- Sandy, Loam, Well-drained
Best planting months
Recommended forZone 9b · St. Augustine, FL
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Seasonal care
Bloom season. Good planting window.
Bloom season.
Growth slows as temperatures cool.
Retains foliage through winter. Can be planted in mild winter periods.
Care essentials
Light
Kumquat grows best in full sun (6-8 hours) in NE Florida. It tolerates some shade but fruit production and quality decrease. Choose a warm, wind-protected location to minimize freeze risk in zone 9b.
Water
Water deeply when the top inch of soil dries out; kumquats are moderately drought-tolerant once established. Avoid waterlogging — use well-drained soil and keep mulch away from the trunk to prevent foot rot.
Soil & Fertilizer
Grow in well-drained sandy or loamy soil. Apply a citrus-specific fertilizer with micronutrients every 6 weeks from February through October. Kumquat is among the most cold-hardy citrus (tolerates 16–20°F) and is reliable throughout zone 9b; fruit ripens October through March.
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Common questions
Is Kumquat a good plant for St. Augustine?
Kumquat is a fruit tree for Zone 9b coastal Florida gardens, reaching 8-15 feet × 6-10 feet.
Care information verified from
Last reviewed March 2026. Our care guidance comes from trusted horticulture sources and decades of helping St. Augustine gardeners. Conditions here can vary dramatically from one area to the next, so come ask us and we'll tailor it to your yard.