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PlantFiles: Sour Orange, Sanbokan Grapefruit
Citrus grandis var. sulcata

Family: Rutaceae (roo-TAY-see-ee) (Info)
Genus: Citrus (SIT-rus) (Info)
Species: grandis var. sulcata

Synonym:Citrus sulcata

One member has or wants this plant for trade.

Edible Fruits and Nuts

15-20 ft. (4.7-6 m)

10-12 ft. (3-3.6 m)

USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun


Bloom Color:
White/Near White

Bloom Time:
Mid Spring


Other details:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:

Propagation Methods:
From semi-hardwood cuttings
By grafting

Seed Collecting:
Allow unblemished fruit to ripen; clean and dry seeds
Seed does not store well; sow as soon as possible
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Click thumbnail
to view:

By CoreHHI
Thumbnail #1 of Citrus grandis var. sulcata by CoreHHI

By mgarr
Thumbnail #2 of Citrus grandis var. sulcata by mgarr

By mgarr
Thumbnail #3 of Citrus grandis var. sulcata by mgarr


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive CoreHHI On Nov 7, 2009, CoreHHI from Bluffton, SC (Zone 9a) wrote:

This is a medium sized evergreen citrus tree with typical fragrant white flowers and flavorful yellow, nippled grapefruit-like fruits. Cold hardy for citrus, its' supposed to be able to take 15 degrees F. I know it has no problems with 25 but I never get down in the teens.

Thick skinned, fair amount of seeds and a sweet lemon taste. Not exactly a lemon but a unique favor.


This plant has been said to grow in the following regions:

Hampton, Florida
Odessa, Florida
Orlando, Florida
Bluffton, South Carolina
Saint Helena Island, South Carolina

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