" 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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