Spinacia oleracea (25-30 days to baby leaf, 45 days mature) F-1 hybrid. Like the amazing smooth surfing waves in Oceanside, California, the leaves of this spinach just keep on coming. Thick but tender, very dark green smooth round oval leaves are upright, perfect for the baby cut. At full maturity, large broad leaves still give excellent silky texture and mild sweet flavor. With our erratic Maine summers, we prize bolt tolerance above all else, and Oceanside delivers in style. Oceanside held leaf quality, strong color and great taste for more than a month, barely showing signs of going by in early August. We have a winter trial crop in with hopes for “over head” harvests. High resistance to DM 1-9, 11, 13, 15, 16, 17 and isolate UA201621A. Intermediate resistance to DM races 12, 14. Cold-hardy. ⑤
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1,500–2,800 seeds/oz. ¼ oz packet sows 30–50 ft; 1 oz plants 120–200 ft.
Days to maturity are from date of direct seeding.
Culture: Very hardy, spinach prefers cool temperatures. Planted as soon as the ground can be worked in spring to avoid early bolting. Minimum germination temperature 35°, optimal range 45–65°. Spinach seed will not germinate in soil temperatures above 85°. For fall crop try late July–Aug. sowing; to overwinter, sow late Aug.–Sept. Heavy nitrogen requirements, but avoid applying high-nitrogen fertilizers shortly before harvest to prevent high nitrate levels in the leaves.
Pick large leaves often for heavier production. Smooth-leaved spinach is easier to wash than the semi-savoyed type and is increasingly preferred. Heat, crowding and long day-length (over 14 hours) trigger premature bolting. To retard bolting, avoid hot-weather planting, use wider spacing and irrigate or use shade cloth.
The use of disease-resistant and hardy varieties, cold frames, row covers and hoophouses has made spinach into a nearly year-round crop. Growers should rely on Space or Oceanside for winter production.
Downy Mildew (DM) is caused in spinach by Peronospora farinosa f. sp. spinaciae. This pathogen evolves new races at a fast clip, challenging breeders and growers worldwide to keep up. Resistant varieties are the main management tool. While formerly considered Somebody Else’s Problem, spinach DM has popped up here and there in the Northeast on a seemingly random cross section of spinach varieties. Most cases have been in protected winter crops. Researchers such as Dr. Meg McGrath of Cornell, along with regional seed companies, are tracking these occurrences with hopes of more knowledge before it becomes a major problem. Stay tuned! Until then, good info and visual spinach-disease primers can be found here.
For the latest results of our germination tests, please see the germination page.