Which types of bellflower are hardy?

Which types of bellflower are hardy?

Not all bluebells are hardy

This is especially true with regard to the winter hardiness, because the individual species of the bellflower can be found almost everywhere from the arctic to the Mediterranean climates. Accordingly, they naturally prefer a location and wintering that best suits their natural surroundings. So if you live in a rather cold area of ​​Germany and want to plant bluebells in your garden, then you better choose a species that is less sensitive to frost. These often originally come from the high mountains, especially the Alps.

also read

  • The optimal care of the bellflower
  • What care does a Carpathian bellflower need?
  • Bellflower impresses with a long flowering time

Types of bluebells and their winter hardiness

In the table below we have put together some of the most popular types of bluebells and their respective winter hardiness.

ArtLatin nameblossomStatureExpectationsWinter hardiness
Rocket-leaved bellflowerC. alliariifoliaWhite40 to 70 cmvery undemandingin zone 3 to 7
Beard bellflowerC. barbatawhite or purple10 to 40 cmprefers light forests, meadowsyes (high mountain plant)
Carpathian bellflowerC. carpaticalight purple30 to 50 cmgrows in mountain forestsmoderate (needs protection)
Dwarf bellflowerC. cochleariifoliawhite, purple or blue5 to 15 cmoccurs in the Alpsmoderate to good
Star bellflowerC. isophyllaWhite10 to 20 cmespecially as a balcony plantmoderate
Broad-leaved bellflowerC. latifolialight blue-violet60 to 120 cmneeds fresh, loamy soilmoderate
Mary's bellflowerC. mediumblue, white or pink60 to 80 cmloose, nutrient-rich soilmoderate
Meadow bellflowerC. patulalight purple20 to 70 cmthrives almost anywheregood to very good
Caucasus bellflowerC. raddeanaWhite10 to 30 cmespecially in rock gardensmoderate to good
Rapunzel BellflowerC. rapunculuslight purple30 to 100 cmRoots are ediblegood to very good

Don't just pay attention to the hardiness of frost

However, if you want to overwinter bluebells, you should not only look at the plants' sensitivity to frost. Most of the species of Campanula are perennial shrubs that, even if their shoots freeze back in winter, sprout again from the wintering rhizomes in spring. Other species, however, are only one to two-year-old bluebells that have to be sown again and again. These include the Mary's bellflower, which is particularly popular as a cut flower, which basically only has to survive a single winter.

Tips & Tricks

If you want to be on the safe side, cover your bluebells with frost protection in winter, e.g. B. spruce or pine branches. Bellflowers in pots, on the other hand, are best overwintered under cold house conditions, ie frost-free, but cool and as dark as possible.