Permaculture and Food Forest Nursery - Howland, Maine
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Seaberry Collection

The vitamin C concentration of sea berry fruit is 30 times higher than the amount of an orange, 25 times that of a strawberry, and 5 times that of a kiwi. Their vitamin E content exceeds wheat, corn and soybeans. Many people prefer seaberry juice to orange juice, and some enjoy eating the berries fresh off the tree. 
Regular deep watering during the hot dry spells of summer will increase seaberry yields substantially. Phosphorus and Potash, along with micro nutrients are necessary, while Nitrogen can actually hinder the plants growth and general vigor. Sea berry, Hippophae rhamnoides, are either male or female so males are needed for pollination. Males need to be planted at a rate of 1 male for every 6 females, six feet apart. Sea Berry is wind pollinated and bears approximately 3 years after planting. Sea berry is hardy to minus 40° F, grows in USDA zones 3-9, likes full sun and well-drained soil. Ideal pH is between 6.3 and 6.8. Height 8-12'. Spread 5+'