A few clematis are fully hardy. The vast majority will require winter protection, at least for the first few years. Get to know hardy species and varieties of clematis here. If in doubt, use our tips for a successful hibernation.

These clematis stand up to the freezing cold

Keep an eye out for the hardy wild species in search of a hardy clematis. In the harsh climate of forested mountains, these have learned to arm themselves against frosty temperatures. The following selection presents perennial clematis that are as beautiful as they are hardy:

  • Clematis alpina bloom again in April and sometimes in August; absolutely indestructible and winterproof
  • As descendants of Clematis alpina, Clematis atragene have a stable winter hardiness
  • Clematis viticella, the Italian clematis with a summer flowering season, is not upset by frost and snow

Not forgetting the yellow Clematis orientalis, which bloom from July to October, followed by decorative infructescences in autumn and winter. There is no trace of frost sensitivity here far and wide.

Perennial clematis score with robust winter hardiness

They have a special status within the multi-faceted Clematis family. Perennial clematis do not climb, but still reach a height of 100 centimeters with a support. They present their profuse flowering in almost any location, only to retire completely during the winter. They will reliably sprout again the following spring. The following types and varieties are particularly recommended:

  • Clematis integrifolia 'Pastel Blue' has pretty, nodding bell-shaped flowers and a flowering period from June to September
  • Clematis jouiniana 'Mrs. Robert Brydon' captivates with numerous white flowers from July to October
  • Clematis aromatica exudes an intoxicating scent from its dark purple flowers

All perennial clematis are not only extremely hardy, but have also established themselves as excellent companions to roses.

Tips for wintering

Do you have any doubts about which clematis is growing in your garden? Then take the following precautions so that the beautiful flowers get through the cold season well:

  • Protect a young or non-hardy clematis from the cold and snow with garden fleece
  • Mound up the root area with leaf soil, bark mulch or straw
  • Cover tendrils on the climbing aid with jute or fleece

If a clematis is considered hardy, this property does not apply to a container plant. In this case, moving to a frost-free winter quarters should be considered. Alternatively, pack the planter thickly in bubble wrap and place it on an insulating base made of wood or plastic so that the root ball does not freeze through.

tips and tricks

Don't be alarmed if your clematis freezes back to near the ground for sunny locations, like Clematis texensis or viorna. At first glance, these summer bloomers appear to be perennials, but they thrive as a woody climber and are winter-hardy. If you cut this clematis back to 20 centimeters after flowering or in late winter, they will happily sprout again next year.

Category:

Indoor plants