Smaller flowers and not quite as tall
While annual sunflowers can reach more than four meters with good care, perennials stay a little smaller.
- Are sunflowers hardy?
- This is how caring for a perennial sunflower is exemplary
- When is the best time to plant sunflowers?
The flowers are nowhere near that big. In particular, the tubular flowers in the middle, in which the nuclei develop, is usually quite small. Often a lot of flowers grow on one plant.
Most sunflower perennials are hardy
Perennial sunflowers grow in any garden soil that is not too compact. Just like their annual relatives, they do particularly well in a sunny spot.
The perennials are mostly hardy. However, it makes sense to spread a mulch of leaves over the cut plants in autumn.
Some varieties that are not hardy need to be digged up in autumn and overwintered in a frost-free place.
Propagation via runners and by division
Perennial sunflowers also reproduce via seeds, but propagation works better by dividing the perennials or cutting off runners.
The roots of the perennials form many runners, which sometimes even grow several meters away from the mother plant.
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
|Perennial Sunflower||Helianthus atrorubens||Yellow, brown eye||up to 180 cm||August to September||Insect pasture|
|meteor||Helianthus decapetalus||Golden yellow, yellow eye||up to 170 cm||August to October||semi-double flower|
|Soleil d'or||Helianthus decapetalus Supreme||Lemon yellow, golden yellow eye||up to 170 cm||August to October||double flower|
|Sheila's Sunshine||Helianthus giganteus||Light cream yellow, dark yellow eye||up to 300 cm||September to November||late variety|
|Lemon Queen||Helianthus microcephalus hybrid||Lemon yellow, yellow-brownish eye||up to 170 cm||August to September||abundant flowering|
|Jerusalem artichoke||Helianthus tuberosus||Yellow, brown eye||up to 250 cm||September to November||edible tubers|
Tips & Tricks
Jerusalem artichoke is valued as a winter vegetable because of its potato-like tubers. This sunflower perennial is indestructible and spreads rapidly throughout the garden.