Rosa Korjoslio Alaska Climbing Rose

Rosa Korjoslio is a new variety of white climbing rose from well-respected rose breeder W. Kordes. It’s a good choice for arbours, wall and arches.

Rosa Korjoslio was introduced in 2014 as Rose Alaska or Alaska Climbing Rose after winning awards in international rose competitions.
Note – Rosa Alaska is synonymous with Rosa Korjoslio. 

In spring shiny mid-green foliage emerges from a strong arching framework of purple stems with purple-red thorns. As the sun warms up in April large clusters of fat buds open into double creamy-white flowers with blushed pink outer petals. The flowers are particularly large, measuring over eight cms across, and cover the stems in a flush of snowy white. Alaska repeat blooms throughout the summer if it’s kept well-watered and fed. Rose Alaska has a light spicy scent that’s attractive to pollinators but isn’t overpowering. It’s a lovely choice for a bright archway above a garden bench.  

Height and Spread of Rosa Korjoslio
Rosa Korjoslio has a moderate growth habit at approximately two metres tall and one metre wide so it won’t grow out of deadheading reach.

How Hardy Is Rosa Korjoslio
Rose Alaska is very hardy and will withstand UK winters and sub-zero temperatures if the roots are well-drained.

It enjoys full sun and as this is a new variety of rose it has excellent resistance to diseases including black spot and mildew.

How To Use Rosa Korjoslio
Alaska climbing rose is an excellent choice od climber for arches and arbours as its flowers repeat bloom across the whole shrub without leaving a leggy stem. The shiny foliage holds its own during the summer and makes a strong framework for other flowering plants such as clematis.

This is a good choice for low maintenance wildlife gardens as it doesn’t need pruning and has large scented flowers.

Try pairing yours with another of W. Kordes’s modern climbers such as red Rosa Amadeus.

To Care For Rosa Korjoslio
Alaska Rose will grow in the majority of well-drained soils and enjoys plenty of sunshine. Be sure to plant yours with the graft line below the soil and tie its long stems to a trellis or wire support for protection against wind breakage.

This climbing rose is bred to resist black spot and mildew but you can help it with regular feeding and watering. Roses are hungry plants and the best flower displays come from well-fed, regularly dead-headed roses. Apply a thick layer of mulch to its roots twice yearly and water it well during dry spells. There is no need to prune this climbing rose unless you want to restrict its height.