- Glenora is a vigorous, highly productive, disease-resistant grape that looks as good as it tastes. Easy to grow and eager to fruit, it is the perfect variety for beginners and experienced gardeners alike to grow and enjoy! The fruit is blue-black, extra-large, and entirely seedless, with an abundance of sweet juice and a unique spicy undertone. The skin is quite thin, giving you more real grape flavor, and the flesh is firm but tender and juicy-sweet. Until you've tasted this grape straight from your own garden, you won't believe such a combination of flavors could exist in such a small, perfect package!