The spider flower is one of the annual summer flowers and is therefore not considered hardy. Occasionally, however, one reads of hardy varieties, which may be a related genus from the Cleomaceae family.
The "true" spider flower, Cleome spinosa, is an annual
The Cleome spinosa, the "real" spider flower, dies with the first frost. But since it forms plenty of seeds and scatters them generously, that's not a big deal. The seeds overwinter on the bed, are not damaged by the frost and germinate without any problems in the following spring. Of course, you can also collect the seeds, sow them indoors during the winter and thus grow young plants in good time.
Key points about the spider flower:
- Plant not hardy
- Seeds frost hardy
- self-seeding
tips
In contrast to the plant, the seeds are hardy, so many young plants will grow in the place of the old plant next year without your intervention - as long as you let the seeds mature on the plant.