Self-sterile A plant not capable of reproducing with its own pollen.
Semi-double A flower with only a few stamens converted to petals; a flower with less than twice the normal number of petals.
Muscadines come in self-fertile and self-sterile lines. The best fruits are from the self-sterile vines; to assure pollination you have to grow a pollinizing vine, too.
Others are self-sterile, meaning they require pollen from another tree. Apples, pears, plums and cherries are a few species that generally require a pollenizer.
Tomatillos are self-sterile, meaning the flowers of an individual plant cannot pollinate themselves. You will need at least 2 tomatillo plants, for pollination and fruit production. The plants are bushy and about 2--3 ft. tall.
Though I admire the straight species, I love the cultivar 'Winterthur', which has brighter red leaves and more abundant fruit. However, since the cultivar is probably self-sterile, it is wise to plant another V.
 See also: Plant, Sterile, Growing, Produce, Spring
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