Daucus carota (72 days) Open-pollinated. Yellowstone boasts a crisp clean flavor that has shown up well in our recent taste tests. Big-shouldered roots with large greenish-yellow cores grow up to 8" long, averaging 7". Productive in a wide variety of soils. Research shows that yellow carrots contain xanthophylls, pigments similar to beta carotene, that help develop healthy eyes and may help prevent lung and other cancers. Seed may have an organically certifiable coating. ④
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⅛ oz packet sows 35 ft; 1 oz, 280 ft. 1 gram packet has more than 400 seeds and sows about 10 ft.
Carrots average 18,000 seeds/oz with significant variations among varieties.
Days to maturity are from seedling emergence after direct sowing.
Culture: Very hardy. Early carrots can be sown by late April. For fall crop or winter storage, seed in early summer. Minimal germination temperature 40°, optimal range 75–85°. Can take up to 3 weeks to germinate; keep rows from drying out for faster emergence. Thinning is critical: At 3" high thin to ½" apart, at 6" thin again to 1-2" apart.
ALTS: Alternaria Leaf Spot
PM: Powdery Mildew
BR: Black Rot
TLS: Target Leaf Spot
LR: Licorice Rot
ALTS shows up first on the oldest foliage as brown-black spots edged with yellow. Foliage blackens and shrivels as it develops and spreads. Maintaining a good crop rotation is the best preventive.
For the latest results of our germination tests, please see the germination page.