shiranui sumo citrus

[Unicyclemike]

Has anyone grown a shiranui sumo citrus? Is it very cold hardy?  If so where did you purchase it?

Mike Adams

[Millet]

I have a large in ground tree growing inside a heated greenhouse in Colorado.  Probably as cold hardy as a mandarin.

[Unicyclemike]

Do you like the taste of the  fruit?

[Nick C]

Shiranui mandarins are def a high quality fruit for flavor. I posted some pics of the fruits i got this year in the general citrus threads. I would say citrus as a whole is pretty cold hardy with most types being able to take into the low 30s.

[Zitrusgaertner]

Shiranui (Dekopon) is said to be hardy down to -10°C. I have a tiny plant in a pot and cannot tell from my own experience

[Citradia]

My in ground shiranui lost 70% of its height last winter when we went to 14 degrees one night in March and I think my heaters l’un cold frames didn’t come on. It came back to three feet high this year but again, I went to 8 degrees for two hours with no electricity so no heaters, then next day 2 degrees and below freezing temps for almost a week while I was on vacation in Fl for a week. The shiranui looks bad again but trunk still green above graft line. The fruit doesn’t ripen until January commercially. I have one in a pot that I brought inside my house during the single- digit nightmare week, and it has one large green fruit on it now. Stuff ripens late for me here.

[tedburn]

Very interesting and beneficial Citradia, to know of such Cold hardiness, still on search for Shiranui for taste but very good ad on the cold hardiness also for my climate 

[brian]

My dekopan/shiranui/sumo tree continues to be fantastic.  Good crop sizes, always 100% seedless, excellent fruit every year, easy peeling.  I think I have 4 this many fruit left on the 7ft tree in my greenhouse.  This year's crop of fruits are a little smaller than last year, I had gotten some gigantic ones, taste is same as always.

[akimbo]

For those here who are growing them, did you grow them from seed or purchase as seedlings or cuttings?

[bramblefig]

I do not personally grow them, but I did purchase some in South GA this past weekend. The grower had 3 acres of the trees and the fruit was quite tasty.  In 2024, our temps got into the teens for a day and in the 20s a few days later and his trees survived.

[brian]

All of my citrus trees are grafted

[70Malibu]

Nice fruits, your neck on those fruits are long.

[tedburn]

My in ground shiranui lost 70% of its height last winter when we went to 14 degrees one night in March and I think my heaters l’un cold frames didn’t come on. It came back to three feet high this year but again, I went to 8 degrees for two hours with no electricity so no heaters, then next day 2 degrees and below freezing temps for almost a week while I was on vacation in Fl for a week. The shiranui looks bad again but trunk still green above graft line. The fruit doesn’t ripen until January commercially. I have one in a pot that I brought inside my house during the single- digit nightmare week, and it has one large green fruit on it now. Stuff ripens late for me here.

Hi Citradia, did your Shiranui came back after the 8 degrees low ?

[quinoah]

brian, at which temps did your shiranui ripen in your greenhouse?
I'm asking because my miyagawa which is ripening under cold temps doesn't get much sweetness
thanks!

[brian]

brian, at which temps did your shiranui ripen in your greenhouse?
I'm asking because my miyagawa which is ripening under cold temps doesn't get much sweetness
thanks!

My greenhouse minimum temperature is 55F / 13C.   When the sun is shining with no clouds it gets up to 90F / 33C, but only for up to 6hrs or so because the days are short in winter here.

[Desertcitrus]

My dekopan/shiranui/sumo tree continues to be fantastic.  Good crop sizes, always 100% seedless, excellent fruit every year, easy peeling.  I think I have 4 this many fruit left on the 7ft tree in my greenhouse.  This year's crop of fruits are a little smaller than last year, I had gotten some gigantic ones, taste is same as always.

Is your tree in a pot? If so what size of pot?

[brian]

No, this one is planted directly in the ground in my greenhouse