" Helianthus annuus"
Common sunflower

 

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Summer - Autumn.
 
 
Although it tolerates drought because of the capacity of its roots to extract water from the soil , - it is a plant that goes on better in irrigated lands than in dry farming - it is important to water abundantly during the bloom to get big flowers and seeds in good state.
  
 
For its seeds, for the production of oil, for fodder production, to produce honey and like a garden plant.
  
 
Sun, being the ideal temperature between the 21-25 Cº and that of sowing between 8 and 10 Cº
  
   
From seeds in autumn or at the end of summer. The plagues that more affect it are the mildew, the parasitic weed " Orobanche cumana" and the rust, besides the worms and the birds.
  
 
He/she prefers the loamy and deep floors that conserve the humidity ,con a pH between 6 and 8. it is convenient to pay it before the floración so that the flowers are big and produce good seeds. A rich mixture in potassium, nitrogen and phosphorous is the most appropriate.
  


 

Another species of " Helianthus"

Helianthus decapetalus----------------- Girasol de fulla fina.

Helianthus maximiliannii--------------------- .................

Helianthus x multiflorus ------------------.................

Helianthus sacilifolius ---------------------Girasol de fulla de salze.

Helianthus tuberosus --------------------- .................

 

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