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Maru Kumquat

Fortunella japonica

Risk Level 🟢 LOW

Cold Hardiness Hardy to -10°C (USDA 9)

Humidity Tolerance Moderate

Soil Fit Well-drained, slightly acidic to neutral soil (pH 5.5–6.5)

Fit with Sakarya Good

Critical Months Dec–Feb

Disease Risk Citrus leaf miner, leaf scorch, Phytophthora root rot

Needs Overwintering No

Fit with Sakarya: how well the plant suits the local climate (winter cold, humidity, summer heat). Risk Level: risk of loss from disease, pests or care. They are separate measures; a cold-sensitive but disease-resistant plant can be "Limited fit, Low risk".

Main Risk Factor

Severe winter frosts can damage young shoots; still a young tree

Priority Action

Protect the root zone with mulch for the first 2–3 winters; keep it in a sheltered spot

Note

A round, small-fruited kumquat variety. Its peel is thinner than Nagami's but still sweet; the flesh is less sour and more balanced. Ideal for eating fresh. A traditional New Year fruit in Japan. Its compact habit suits gardens and pots.

📋 A comprehensive growing guide for this plant is being prepared.

🌱 From the Garden — Personal Notes

Planted 2025

Harvest Season November – January

Pollinator Needed No

Location in Garden Garden

I planted it a year ago and it is still a young plant. It grows in the garden alongside the Nagami. (translated from Turkish)

★★★★☆

Maru Kumquat

Main Risk Factor

Priority Action

Note

🌱 From the Garden — Personal Notes

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