Your name is misleading us. In fact, the Japanese miracle flower comes from the sun-drenched regions of South America. It is therefore obvious that a Mirabilis jalapa is not hardy. You can find out how to overwinter the fragrant and flowering plant here.
How do you overwinter the Japanese miracle flower?
To overwinter the Japanese miracle flower, dig up the tubers before the first frost, cut back the roots and shoots, remove excess soil and store them in the dark at 5-10 degrees Celsius in sand, sawdust or peat. Plant the tubers again next year from mid-May.
In its tuber there is the life force for several years
In its habitat, the Japanese miracle flower thrives perennially by retreating into its robust tuber. In order for the flower-rich beauty to achieve this masterpiece in the Central European climate, it is wintered like this:
- Dig up the tubers before the first frost
- Cut off all roots and shorten the shoots to 5 cm
- Just knock off the remaining soil and do not wash it off
In the dark winter quarters, the Japanese miracle flower survives at a cool 5 to 10 degrees Celsius. Place the tubers on an airy shelf or wrap them in sand, sawdust or peat. Next year, plant the overwintered tubers again from mid-May at the earliest.