This annual cosmos grows to 6 feet tall and has gold or yellow summer to fall flowers . This particular cosmos , because of its height , tends to get weedy looking towards the end of the season . Best planted in generous drift . Starts promptly from cum sow in undefendable ground from spring to summer . Transplants maybe set out from flats as well . Self - sow in plant that attracts birds .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
Through the season , be certain to fertilize for optimal public presentation . Take special attention to issue back or altogether remove any pathological plant , as soon as you see there is a problem . At the end of the season , be sure to remove all plants and their root bollock . skim the layer well to organize it for the next season ’s planting .
Problems
Aphids can increase quickly in numbers and each female can bring forth up to 250 lively nymphs in the track of a month without pairing . Aphids often appear when the environment commute - spring & nightfall . They ’re often massed at the tips of branches feeding on lush tissue . Aphids are attract to the colour yellow and will often hitchhike on yellow clothing .
Prevention and Control : Keep weeds to an right-down minimum , specially around suitable plants . On edibles , wash off taint orbit of industrial plant . ma’am hemipteron and lacewing fly will feed on aphid in the garden . There are various products - organic and inorganic - that can be used to hold aphids . Seek the good word of a professional and follow all recording label procedures to a golf tee . Fungi : Powdery MildewPowdery Mildewis usually found on plants that do not have enough air circulation or tolerable illumination . Problems are bad where nights are coolheaded and Clarence Shepard Day Jr. are warm and humid . The powdery lily-white or gray fungus is usually incur on the upper control surface of leaves or yield . Leaves will often wrick yellow or brown , curl up , and drop off . newfangled foliation come forth crinkle and distorted . Fruit will be dwarfed and often drops early .
Prevention and Control : Plant resistant varieties and space plants properly so they receive adequate brightness level and aviation circulation . Always piss from below , keeping water off the leaf . This is paramount for roses . Go soft on the nitrogen fertilizer . put on fungicides according to label focus before job becomes terrible and play along directions just , not missing any required treatments . Sanitation is a must - cleanse up and hit all leaves , flowers , or dust in the fall and destruct .
