Stellaria media Common Chickweed CCC D N
This is a hugely successful annual weed which you find in gardens and on countryside verges. It is also one of the first to colonise partly rotted compost heaps, not in the least deterred by over- rich nitrate laden humus. It is a winter plant as well as summer and continues to produce flowers and stay bright green throughout the seasons. The flowers won't open though unless the ambient temperature is around 10 Celsius and is so consistent with this that you can use it as a thermometer.
Stellaria media is found everywhere in the British Isles and Ireland including the outer islands of Shetland and St. Kilda.
LHS: Helsby, Cheshire 24th September 2004 RHS: Helsby Cheshire 4th October 2004
Added on November 19th 2004, updated 11th February 2012