Is my butterfly lilac frozen? - Tips for frost damage

Content

• Is my butterfly lilac frozen? - Tips for frost damage
• Frozen or not? - This is how the vitality test works
• Pruning brings the butterfly shrub back on track
• Care after pruning
• Tips

Well-rooted butterfly lilac do not mind snow and frost

Is my butterfly lilac frozen? - Tips for frost damage

Its assignment to the winter hardiness zone Z6b with frost tolerance up to - 20.4 degrees Celsius weighs us to safety. Nevertheless, a butterfly shrub is not immune to frost damage. For this reason Budvedia davidii or its glorious varieties do not need to be frozen for life. How a vitality test works and what measures are now useful, you can find out here.

Frozen or not? - This is how the vitality test works

If a butterfly shrub has become well rooted in the bed, even freezing frost will not cause any problems for it. Threatening frost damage usually occurs when, after a mild weather period in the late winter, Govatter Frost hits again mercilessly. This exhausting back and forth does not endure the ornamental shrub and freezes back drastically. With a vitality test you can determine if there is still life in your Buddleja davidii. That is how it goes:

If green tissue appears under the bark, life still pulsates in the shoot. Wherever there is brown tissue beneath the surface, the branch is frozen.

Pruning brings the butterfly shrub back on track

If the vitality test has proven that a butterfly shrub is only partially frozen, there is justifiable hope for a summer bloom. Now you benefit from its property that this summer lilac species always blooms on this year's wood. Cut all shoots back to 30 or 50 cm. Completely dead shoots are illuminated at the base.

Care after pruning

The hard winter and consistent pruning have demanded a lot from your butterfly shrub. So that he now has enough energy reserves for a fresh shoot, he gets a generous helping of compost with horn shavings. Just rake in the fertilizer on the root disc and pour. Treat a shrub in the tub with liquid fertilizer for flowering shrubs.

Tips

A butterfly lilac in the tub is threatened by frost damage even in advanced age. Unlike his companions in the bed, he can not work out a winter hardiness down to - 20 degrees Celsius. Ideally, the shrubs therefore winter in a frost-free room.