Theres no semi-trailing viola on the market that flowers earlier than Endurio in the spring. Endurio is less day-length sensitive than other series, so its a great choice for fall or spring production, flowering earlier and longer even in low light. Endurio is extremely well branched and free flowering, filling containers quickly for efficient production and stunning shelf appeal. Count on Endurio for excellent overwintering ability. In areas with mild winter climates, the series even continues to bloom through light snow cover!