Helianthus decapetalus - Sunflower

Pests Helianthus decapetalus : The treatments are applied only in case there is an effective presence of parasites on the plant, using specific products. We suggest to avoid any treatment during bloom, which can injure pollinating insects.

continental : These plants shall be watered frequently to keep a constantly humid substrate. However avoid the water stagnation and decrease waterings in case of low temperatures.

alpine : Water The Helianthus decapetalus very regularly, to maintain the soil always humid, but not soaked. During the coldest months water only if the soil dries out completely.

mediterranean : Waterings will be very regular, giving a good amount of water, to allow the soil to be constantly humid, avoiding to drench it completely. Decrease waterings in the cost season.

continental : It is advisable to grow this plant in a very sunny place.
This is a very rustic garden plant, that should not have problems even in case of very intense frosts.

alpine : It is advisable to grow this plant to direct sunlight all year long.
The Helianthus decapetalus is very rustic and can be grown in the garden all year long; it does not suffer from even intense frosts.

mediterranean : It is advisable to grow these plants in a very sunny location.
The Helianthus decapetalus does not suffer from cold and frost; this is a plant that can be grown in the garden all year long.

Fertilize Helianthus decapetalus : It is advisable to mix with annual plants soil some slow-release fertilizer, to ensure the plants a constant source of mineral salts.