Citrumelo (× Citroncirus spp.) is also called Swingle citrumelo trifoliate hybrid, because it is cold hardy and is a hybrid between a 'Duncan' grapefruit and a trifoliate orange (Poncirus trifoliata Raf.), developed by Walter Tennyson Swingle.

Citrumelo Hardy Grapefruit will grow to around 6 ft. and is very hardy for citrus, surviving temperature into the low teens or below. The fruit taste like a cross between a lemon and a grapefruit, is smooth skinned, and as large as 4 inches across.

Hardy Grapefruit (Citrumelo hybrid) A citrus tree for the north! This hybrid between Poncirus trifoliata the "Hardy Orange" and the Pummello grapefruit takes periods of subfreezing temperatures with ease.

Fruit tastes like a cross between a lemon and a grapefruit with smooth yellow skin. Very resistant to citrus virus, root rot, blight, cold, and citrus nematode. We sell all Citrus, orange trees, lemon trees, lime trees, and grapefruit trees.

Read More After that, with a little research I found the "Dunstan" variety and replaced the dead citrumelo with one the following summer. The small plant was only a few inches tall and wasn't planted until August. Due to space limitations it also is completely exposed to the west winds.

To Heinz Wutscher must go much of the credit for developing 'Swingle' into the widely used rootstock that it is today. The early development work is summarized in the Release Notice, Hutchison (1974), Anonymous (1974), Wutscher (1979), Castle (1987), and Castle et …

Oct 13, 2023 · The citrumelo is an old hybrid that crossed the Trifoliate orange with grapefruit in an early attempt to produce cold-hardy, edible citrus after disastrous freezes in Florida in the late 1890s. The first citrumelos were produced by Dr. Walter T. Swingle of the United States Department of Agriculture.

The citrumelo is an intergeneric cross between a ‘Duncan’ grapefruit (Citrus) and the trifoliate orange (Poncirus trifoliata) whose proper Latin name is xCitroncirus. It forms large grapefruit-sized fruits that are yellow to light orange with thin skin and a …

Jan 15, 2023 · There are several varieties of citrumelo. They differ in taste, hardiness and so on. By and large, the rootstock is not very important for the taste. On closer look, there are some differences, but with citrumelos it's mostly a matter of whether they're edible at all....and this also depends on individual preferencies

Citrumelo is a broadleaf deciduous, evergreen or semi-evergreen fruit / vegetable or shrub with green foliage. In spring cream and white flowers emerge followed by green, orange and yellow fruit. Attracts bees making it an excellent addition to pollinator gardens.