Home»Flowering»Cosmos
member of the Asteraceae family have always been popular with gardener , andcosmoshave become a hallmark flower in late year .
One of the most beloved members of this young trend isCosmos sulphureus(KAHS - mos sul - FER - ee - us ) , whose often firelike show has earned it the rough-cut name of sulfur cosmos .
Other common name let in :
The attractive Cosmos sulphureus annual hail from Mexico and other part of Central America , but its broad temperature permissiveness allows it to be imbed throughout most of the United States .
Popular cultivars of sulfur cosmea admit :
Sulfur Cosmos Care
Size & Growth
These popular easy to farm flowers usually progress to a height of 2 to 3 ’ pes with a 1 to 3 ’ pes diameter , but heights up to 6 ’ human foot have been register .
The green lanceolate leaves develop alternately and can grow up to 12 ” inches long .
Each leaf has 2 to 3 deeply cleft leaflets .
The stems are haired and blooms arrive on peduncle measuring 4 to 8 ” inch long .
Flowering and Fragrance
The principal magnet for Cosmos sulphureus begins in summertime and continues until the first icing , with daisy - like flush measuring up to 2.5 ” inches across .
These ray bloom roll in colour from yellow , orange - yellowed , red , or bass orange ; with cultivar producing blooms with a wider orbit include scarlet and variegate petals .
Light & Temperature
Cosmos love full sun . You ’ll want to plant them somewhere that receives full sun at least 6 hours per day .
you could plant these semi - hardy plants outdoors in USDA hardiness zones 2A to 11b , as well as keep them as indoor container plant .
Watering and Feeding
Cosmos sulphureus is drought - kind once the roots are established , and only require minor to restrained amounts of water .
stave off using fertilizer as cosmos is adapted for poor soil and will overgrow if overfed .
Soil & Transplanting
The cosmos is adaptable to many soil types , with a well - enfeeble clay , sandy , or loamy grease being preferable .
Avoid rich soils , as the industrial plant will grow too tall and become precarious .
Grooming And Maintenance
You may take to shorten back grandiloquent plant life as needed .
Cutting back to a height of 12″ to 18 ” inches as flowers dry out out can exsert the plant ’s bloom time .
Deadheading spent flower will also encourage additional peak .
grandiloquent plants will involve support , preferably being tied with a idle string to a bamboo pole embedded 3 to 4 ” column inch out from the fore .
How To Propagate Orange Cosmos
Cosmos Sulphureus Pests or Diseases
This semi - hardy plant life has few wellness risks , with the chief plague beingaphidsandJapanese beetles .
Other pesterer admit : ascendant - international nautical mile nematode
It is also susceptible to bacterial wilt disease and canker .
Other disease include :
The plant is pretty drouth tolerant once established .
Cosmos can spread aggressively if tolerate to ego - semen unregulated and was declared incursive in the Southeastern US in 1996 .
Suggested Sulfur Cosmos Uses
The flowers have traditionally been used for dyes in the Americas and presently used to dye wool in South Africa .
The Cosmos sulphureus plant is somewhat edible , with young shoot being consume naked or cooked in Indonesia , the flower being used in Thailand for teas and salads , and dry excerption being used in Ukrainian baking .
There is some evidence of medicinal benefits to consuming component part of the industrial plant .
