Cut flowers

Swamp Sunflower

Cut flowers

Swamp Sunflower

Product code : 68-5040-010

5.00$

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The Helenium autumnale is a hardy perennial that tolerates heavy, clayey soils. Its petals, of a brilliant yellow, end in three points which give the plant a unique appearance.

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Sun

Hardiness zone

4

Blooming

July to September

Height (cm)

30-100

Spreading (cm)

30

Sol

Cool, moist

Formulation

Untreated

Cultivation mode

Plantation : Mix seeds with an equal amount of damp sand or vermiculite. Place the mixture in a sealed plastic bag. Store the bag in a refrigerator or cool storage room for 30 to 90 days. Sow seeds when there is no risk of ground frost.

Soil : cool, moist

Culturals practices : Or plant the seeds outdoors during the fall. Germination will occur the following spring or later on.

Consult our technical sheet

Latin name

Helenium autumnale

Sowing guide

PDF