About Allium sphaerocephalon L.
Allium sphaerocephalon, scientifically named Allium sphaerocephalon L., produces egg-shaped bulbs. Small bulblets form under the outer layer of its stem, which means the species can become potentially invasive when grown in gardens. Its flowers grow on a scape that reaches up to 50 centimeters tall, arranged in a spherical to egg-shaped umbel 1 to 6 centimeters in diameter. This umbel is tightly packed with many densely crowded flowers. Because the umbel is relatively small compared to the height of the stem, this species is counted among the plants known as "drumstick alliums". Individual flowers are reddish-purple, and are occasionally replaced by bulbils; this trait again makes Allium sphaerocephalon a potentially invasive species.
