Yellow Gem is a high yielding variety with round to oval, off-white tubers. The tubers are firm and juicy, with a very smooth texture after cooking. Flavor is neutral in fall with just a hint of sweetness and floral aftertaste. By spring, the tubers are very sweet. Small, yellow “pom pom” type flowers. Grows to about 3 feet. An older variety, dating to 1914. Tolerates overwintering in wet soil better than most varieties, which helps to sweeten it.
We had a hard time tracking down a source for this variety. It appears that many ornamental growers have dropped it in favor of more showy varieties. Perhaps we can help it to gain some popularity and live on as an edible.