Success of hardy micro-propagated ornamental shrubs in Northern Finland

In vitro propagation was used to study the succee of micropropagated plants in northern areas. Experiments were done on the most valuable origins of the Viburnum and Syringa genuses, primarily for winter hardiness and growth. Of the species studied, Viburnum opulus 'Pohjan Neito' (Tornio), Syringa x josiflexa 'Veera' and S. x henryi 'Paulus' were most optimal for ornamental use in northern areas. In vitro propagation is an effective method to produce successful plant material for northern areas.