5 - 6 weeks
||Bennett MD. Nuclear DNA content and minimum generation time in herbaceous plants. Proc R Soc Lond B Biol Sci. 1972 Jun 6 181(1063):109-35. p.109 4th paraagraphPubMed ID4403285
||Salisbury, E. J. 1961 Weeds and Aliens. London: Collins.
||P.109 4th paragraph: "There is a considerable variation in life-cycle time between species of herbaceous higher plants. While some annual species like Senecio vulgaris or Stellaria media can complete a life cycle in just 5 or 6 weeks (primary source), some perennial species have life cycles of several years duration. For example, Fritillaria species cannot flower until about 5 or 6 years after germination (BNID 114311)."