Search for common chickweed on Google and several sites pop up to tell you how to rid your lawn of this invasive plant. Although common chickweed is technically an annual plant, it overwinters in milder climates so well that it often stays green all winter. This plant is found over our entire planet, even blooming within the artic circle. The flowers only open for a single sunny day, but they are plentiful. Common chickweed blooms early and often between March and November, so it makes a good spring source of nectar for the bees and other pollinators. It also wreaks havoc on gardens and fields, often establishing itself before the ground is dry enough for weed control measures in the spring.