Common on chalky soils. Reproduction Perennial herb, reproduces by seeds and creeping rhizomes. Extensive, creeping rhizomes. Production from shoots can be large, and may begin at seedling stage. Plant is self-incompatible and insect pollinated.
Vegetative reproduction is important because of low seed viability.
Vegetative reproduction may begin as soon as 2-3 weeks after germination, and is possible from root fragments as short as 1 cm. Seeds may also be dispersed by water and ants. Competition In North America, Linaria vulgaris is generally considered a strong competitor, but is considered a weak to moderate competitor in Europe. Linaria vulgaris is able to quickly colonize open habitats, and is capable of adapting growth form to a wide range of conditions. Generally does well in moist areas with high fertility but will be displaced by other species when growing in less favorable conditions.