Fritillaria meleagris

I learned that the name of the plant comes from the Latin word fritillus - a chessboard; it is given due to the variegated coloring of some varieties of flower resembling a chessboard. According to another version, the name comes from the Latin name for a cup or vessel for playing dice and is associated with the shape of the flower.

 The wiki said the plant has many common names in different countries, they are: snake's head, chess flower, frog-cup, guinea flower, leper lily, Lazarus bell, chequered lily or daffodil, drooping tulip, etc.

What do you call this plant?

Over time, eyes get tired of the brightness and pretentiousness of many garden flowers. And fritillaria has a calm color of bell-shaped flowers: white, brown, yellow, green, purple, besides it is remarkably complemented by the elegance of the whole plant. I grow two species of Fritillaria: meleagris (chequered) and involucrata (white specie)

Under the ground fritillaria has a bulb where nutrients accumulate. They support plants during dormancy and at the beginning of the growing season. The shape of the bulbs is very diverse, most often elliptical. 

I love to wait for the start of plant growth that begins in spring with an abundance of moisture in the soil. In a short time, the plant forms a stem, leaves, blooms, forms a new bulb. In June it freezes until the next season.
At this time the bulbs can be dug, transplanted, stored, forwarded. In late summer or early fall fritillaria begins underground stem growth and root formation.
What is your experience in Fritillaria growth?