Summary:Emergence ofVeronica hederifoliaseedlings began in mid‐October and continued into spring; few appeared from June to September. Ripe seeds shed in June were dormant but wben buried in soil outdoors developed a capacity for germination initially at low temperatures (constant4 C; daily alternations of 4‐10° and 4‐1 5 C) and later at somewhat higher temperatures, with peak germination in September‐November. During winter, spring and early summer thc germination capacity declined, to increase again in late summer and early autumn. Cyclic physiological changes thus occur in seeds ofV,hederifoliapresent in the soil, with which lhe consistent seasonal periodicity of seedling emergence is associated.In dry storage ihe capacity for germination progressively increased, but alter 12 months there was a sharp decline in germination at 4° C. Few seeds germinated at 20° C, but moistening with GA 4/7; brought about complete germination at this t