The sunflower ( Helianthus annuus ) is a well fuck and celebrated genus of flower plants aboriginal to the Americas . relish for their eatable seeds and large , showy flower heads , which pose atop tall stalks , sunflower are cultivated in gay locations across the globe . Information about helianthus plants is plentiful thanks to the plant ’s widespread popularity .

Appearance

Sunflowers cast in show from one cultivar to the next , but in general helianthus grow to be between five to eight feet grandiloquent , produce all-embracing , green foliation that is jolly coarse and haired . The bright jaundiced and brown flower heads are often quite gravid and showy , sometimes reaching an integral foot in diam . potpourri like the swamp sunflower ( Helianthus angustifolius ) make much small flowers that resemble daisies , while some fork sunflowers like the Helianthus debilis ' Key Lime Pie ' have blooms that cast a greenish tone .

Location

helianthus are native to the Americas from Central Canada down through the United States and into Northern Mexico . Wild sunflowers , from which democratic garden hybrids rise , live in prairies throughout these area . Despite this , Russia is the identification number one commercial-grade produce of helianthus germ oil , while Argentina is 2nd and the works ’s native United States is third .

Uses

helianthus fulfil a potpourri of purposes in the garden , such as masses serving as a temporary screen or as a bed or border plant . The flower are excellent as cut flowers for fresh bouquet thanks to their stiff , durable stems and hardy salad days . The seeds are harvested by cutting the flowerhead off the bow when it begins to brown , and then dry the flowerhead and removing the seed . Sunflower seeds are eat as they are or roasted and sprinkled with salt .

Cultivation

helianthus are easy to cultivate so long as they get full sunlight and a grime that is inert or alkaline . nurseryman who have acidic soil and want to grow sunflowers can simply unify in a slight lime with the soil . Though reasonably drought tolerant , it ’s good to water sunflowers regularly if you want them to grow prominent and tall . Especially improbable mixed bag may take staking or some other form of support to keep them from falling over .

Problems

Like any other plant , sunflowers are susceptible to a few job . These let in various types of mold as well as fungal leafage smirch and pests such as cut worm and caterpillars . When tearing , endeavor to ward off getting the foliation wet . This will serve keep the works from suffer from fungus . Sunflowers may cause problems for individuals with tender skin , as the leafage may be a skin irritant to and cause uncomfortable rashes or redness .

References

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