Content
- Hardy and long-lived: sunflower perennials
- Smaller flowers and not quite as tall
- Most sunflower perennials are hardy
- Propagation over foothills and by division
- Well-known perennial sunflowers at a glance
- Tips & Tricks
Sunflower perennials are usually slightly smaller than their annual relatives
Hardy and long-lived: sunflower perennials
If you want to save the annual sowing of annual sunflowers (Helianthus annuus), you can plant sunflower perennials in the garden. They are perennial and usually hardy. However, the seeds of these varieties are not suitable for consumption.
Smaller flowers and not quite as tall
While annual sunflowers can reach more than four meters with good care, perennials remain slightly smaller.
The flowers are not that big. Especially the wreath tubular flowers in the middle, in which the nuclei develop, is usually quite small. For this often grow a lot of flowers on a plant.
Most sunflower perennials are hardy
Perennial sunflowers grow on any garden soil that is not too compacted. Just like their one-year relatives, they thrive especially well in a sunny spot.
The perennials are usually hardy. But it makes sense to spread a mulch over the cut plants in the fall.
Some non-hardy varieties must be dug up in the fall and wintered in a frost-free place.
Propagation over foothills and by division
Perennial sunflowers also multiply via seeds, but the propagation works better by dividing the perennials or by cutting off foothills.
The roots of the perennials form many foothills, sometimes even several meters from the parent plant grow.
If you want to prevent the uncontrolled spread of perennial sunflowers, you should create a root barrier before you plant them.
Well-known perennial sunflowers at a glance
Tips & Tricks
Jerusalem artichoke is valued for its potato-like tubers as a winter vegetable. This sunflower perennial is indestructible and is spreading rapidly throughout the garden.