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The round kumquat (Marumi kumquat)

 Marumi kumquat is Citrus japonica; it is indigenous to Japan and has orangelike fruits that are about 2.5 cm in diameter.

Marumi is the Mame or Hime kinkan of Japan.  In comparison with the Nagami kumquat, which it closely resembles, the fruit of this kumquat is round or slightly oblate, oblate, sometimes obovate, and smaller. The rind is thinner and somewhat sweeter, golden-yellow smooth with a wider range in the number of segments (four to seven) and 1 to 3 seeds, which are smaller than those of Nagami. The tree is less vigorous and somewhat thorny, with smaller, less sharply pointed leaves.  It is considerably more cold tolerant than Nagami and bears at the same season, from October to January.

The Round kumquat was fully described for the first time in 1784. It was introduced to Florida from Japan by Glen St. Mary and Royal Palm nurseries in 1885.

  • Category Citrus
  • Genus Citrus
  • Species kumquat (= japonica)
  • Families Rutaceae
  • Habit Shrub
  • Climatic Zones Sub-tropical, USDA 10 b (Southern Italy and islands)
  • Leaves Evergreen
  • Flower Corymb
  • Geographical Area of Origin Eastern Asia / Far East
  • Flowering and Fruiting Period December November October September August March February January
  • Form Espalier Pyramid Flower pot Tree Grown as shrub / bush
  • Color Flower / Leaves / Fruits Green White
  • Parfumed yes
  • Favorite soil Sub-acid / medium acid Middle-Dough / Medium soil
  • Water needs Medium
  • Light Exposure Full light / Full sun Medium shade / Half shade
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