Here is the Jaune Obtuse Du Doubs Carrot, Daucus carota subsp. sativus. They originated from France around 1894 and was named after the Doubs River. It was also used as a feed stock but is now a chef's choice! These long and stout carrots have a wonderful mild and sweet flavor an can have roots that grow from 7 to 12 inches long and are often bright yellow in color but can also be a flat dull yellow color in cooler weather. Use them just like any other carrot but we like to juice them as well as skin them with a potato peeler and add them to salads. These carrots grow well in soft loamy soil. Open pollinated 63 to 78 days.
Jaune Obtuse Du Doubs Carrot
Quantity 50 seeds50 SEEDS
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Germination temperature: 50 F to 85 F - Will germinate at temperatures as low a 40 F. Will germinate in about a week at 75 F, with adequate moisture. Days to emergence: 7 to 21
Plant in spring, 2 to 3 weeks before last frost, ½ inch deep, ½ inch apart, in rows 12 to 24 inches apart. Deeply worked soil with fine, weed-free seedbed will greatly improve chances of successful crop.
Carrots are slow to germinate (1 to 3 weeks), and often germinate unevenly over a period of several weeks. To speed germination, water lightly daily if soil is dry.
Thinning is critical to reduce competition from neighboring plants. Thin to 1- to 4-inch spacings (depending on size of root desired) before plants are 2 inches tall. Cutting rather than pulling reduces disturbance of the remaining plants.
To improve germination in dry weather: Make a small furrow, about 2 inches deep. Plant seed and cover with about ½ inch of soil. Cover furrow with a board to retain soil moisture until seeds germinate.
Tip: Sow radishes in the same row. They germinate quickly, break the soil crust, and mark the row. Thin and/or harvest radishes before they compete with carrots.
Use seed tape or pelleted seed for more even spacings and less thinning. Or mix seed in roughly equal proportions with sand, fine vermiculite, or dried coffee grounds.
Mulch to keep soil cool, conserve moisture and to keep exposed "shoulders" from turning green and bitter. Another option is to hill soil over the shoulders.
Make additional plantings every three weeks through midsummer for continuous supply and fall harvest. Sowing in very early spring is possible, but some varieties will bolt if temperatures are too cold. Plant crops for fall harvest about 10 to 12 weeks before first frost.
Root quality is best when soil temperatures are 60 F to 70 F. The shape of the root is determined within the first few weeks after germination when the new plant extends its taproot deep into the soil. If it encounters obstacles (such as rocks or high water table) or is damaged, shape and quality of the root will suffer.
To prevent diseases, don’t plant carrots in the same spot more than once every 3 years.