Vegetables » Vegetable Seeds » Rhubarb Seeds 

Rhubarb leaves are poisonous. If planting from seed, sow in early spring in rows 18 inches apart. Transplant roots the second year to their permanent location, 3 to 4 feet apart. 16 plants are needed for the average family of four. A packet of seed will produce about 20 roots, an ounce 100 roots.

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