Hardy or sensitive to the cold?

Sun rose are frost hardy down to -20 ° C

Most common Sun rose are hardy and perennial. Many specimens even survive frost down to -20 ° C °! The following well-known sun rose flowers are well tolerated by frost and generally do not need winter protection:

• Common sun rose
• Yellow sun rose
• Apennine sun rose
• Mountain sunflower
• Hybrid 'yellow pearl'
• Hybrid 'Roseum'
• Hybrid 'Firedragon'

Protect sensitive varieties from severe frost

But there are also varieties that are more sensitive and sometimes get frostbitten without protection. This includes, for example, the moon-spotted sun rose. It needs light winter protection. Many hybrid varieties that have double flowers are also sensitive to frost.

Basically, you should protect your sun rose flowers in winter, when they are in rough locations, or were freshly planted in autumn, or when they are fresh increased were for example cuttings and stand outside.

The right winter protection

But what should be done to protect the sensitive under the sun rose from severe frost? Fir and spruce branches, brushwood from deciduous trees and straw are well suited. The material is simply placed loosely on the plant.

Alternatively, there is also a layer of mulch in the form of gravel or Grit,(€ 49.99 at Amazon *) which was laid in spring, helpful to protect the plants from frost. Apply the winter protection before the first frosty nights in autumn.

Prepare for winter - cut back

Before winter arrives, you should grab scissors. Cut back the sun rose. This means they are better protected in winter and in spring they can start the new season with a compact growth.

Beware of winter sun and moisture!

In addition to strong frost, there are two other points that sun rose do not like and tolerate at all. On the one hand, this includes winter sun. The warmth of the sun stimulates the shoot. Then when night comes the fresh shoots freeze to death. On the other hand, sun roses are quickly damaged if they stand in wet soil in winter for days. Keep them from that!