Red Cardinal is a mid-late variety of onion, characterized by high yield and stable fruiting. The bulbs have a round or flat-round shape, weighing from 60 to 80 grams, with a dense skin of saturated purple color. The fruits have a sharp, rich taste and contain a significant amount of ascorbic acid, making them useful and tasty to consume.
This variety is suitable for growing in both one-year and two-year cultures, which allows obtaining a yield of onions. Red Cardinal is recommended for producing onions for sets, as well as for preparing various dishes. Onions store well for a short time, which makes them convenient for market realization and home consumption.
For successful growing of Red Cardinal onions, one should choose fertile, well-processed, light soils with a neutral reaction. It is recommended to observe crop rotation and not grow onions in one place more often than once every six years. Sowing is carried out early in spring at a depth of 1-3 cm, with a sowing rate of about 6-7 grams per 10 square meters, with the distance between rows being about 40 cm, and between plants in a row — 4-6 cm. Good predecessors for this variety are tomatoes, cauliflower, and cucumbers.