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Russian Hybrid Sunchoke Mixed Tuber Collection

currently unavailable This open pollinated grow out from USDA seed was brought from Russia many years ago as a means of developing energy and food crops for U.S. agriculture. One hybrid called 120 was considered a cross with the annual sunflower and the sunchoke. Several others like Leningrad and others were exchanged with research scientists interested in the sunchoke for reasons that have never been fully explored and implemented.  I grew many of these out over the course of 4 years. When we first grew these accession the hybrid vigor was evident in the first generation with most of the population showing twice the growth rate of Manitoba and Diversity Seedlings. Tubers tend to be smooth, blocky and white in color. They are early ripening and sprout and grow in cooler soil.  They have  smooth skins. Like White Fuseau and Shiawassee the Russian types are good culinary selections.

This selection has very good leaf retention and very different looking foliage with oblong dark green leaves. The growth rate in both the polybags and larger pots has been verry good with heavy yields. The tubers produce a lot of runners which in turn creates many tubers per plant. Many of the named varieties are low yielding in polybags with peat mix compared to field grown. Everyone of these seedlings are high yielding. I grew these from seed, weighed the first year roots and used only the highest yielding plants. None of them have been named as cultivars or varieties. They are labeled collectively as Russian Hybrids.

Early ripening. Heavy yielding. Large root mass. Fast growing. Hybrid vigor. 

Plant Specs
Genus & Species Helianthus x tuberosus crosses with other species
Hardiness minus 30 F or more
Height (ft) 10-15ft.
Pollination Requirements Variable and hard to predict, but having several seed grown and cultivars in a small area will help dramatically in full seed production. As my collection grew so did my fertile seed heads, however there were several varieties that never set seeds too but it is few comparatively.
Climate Zone 3-8 Developed overtime with northern selections. Short season types.
Ease of Cultivation Highly vigorous selections with good leaf retention. Upright strong plant and worth growing in northern climates where a short season is critical or an early harvest is needed. A good selection to produce from tubers as well as seed. Contains hybrid 120 from the USDA collection which is suppose to be a annual sunflower crossed with perennial sunchoke. When you grow these out, the genetic contribution from one species to create a composite is different in sunchokes and you may not seed a normal first generation with the normal large variation. But the leaf health is very good with this selection as well as possible yields.