Biennial plants are those whose full development cycle, ie from the germination of seeds to the release of flowers and fruit, takes two growing seasons.In the first season, they only form a rosette of leaves, in the second season, shoots, flowers and seeds.
These include both typically biennial species, i.e. those that die in the second year of cultivation, after seed release, e.g. garden pansy, garden bell, purple foxglove, forest forget-me-not, as well as the most profusely flowering perennials in the second year, and already in the following years, due to weaker flowering, they lose their decorative value, e.g.marshmallow pink, bearded carnation, mullein.
Propagation of biennial plants
Biennial plants are propagated from seeds that are sown in May, June or July in boxes filled with peat substrate or directly into the ground.Seedlings after 2-3 weeks are dived into multi-cell pallets , pots or to the ground in the beds.
Broadcast, row or point sowing is used infrequently to avoid pinching, especially when pelleted seeds are used. The ready-made seedling is usually planted in the fall or after wintering in the spring of the following year.
Seeds of garden mallow, purple foxglove, forest forget-me-not and garden bell can be sown directly into the ground in the place planned for them.While the seeds of garden pansy, common daisy and bearded carnation are sown boxes, and a ready-made seedling is planted in a permanent place.
