Cosmos bipinnatus and Cosmos sulphureus are both beautiful efflorescence plants that go to the Asteraceae syndicate . While they may have some similarities , they also have distinct characteristics that determine them apart .

1 . Leaf social organisation : – Cosmos bipinnatus : The leaves of C. bipinnatus are exquisitely cut into threadlike segments , fall in them a delicate and feathery appearance . – Cosmos sulphureus : On the other hand , C. sulphureus has foresightful parting with narrow lobes and hairy gross profit . These leaves have a slightly different texture compare to C. bipinnatus .

2 . Flower colour : – Cosmos bipinnatus : This species typically exhibit a blanket range of flower colouration . you could find variety with shades of pinkish , snowy , and even bicolor prime . However , the colours are not trammel to these options . – Cosmos sulphureus : In contrast , C. sulphureus flowers are always sunglasses of jaundiced , orange , or red . The vibrant and warm hues of these flowers produce a sensational ocular impact in any garden .

3 . Plant Height : – Cosmos bipinnatus : C. bipinnatus plants can grow quite tall , reaching altitude of 3 to 6 feet ( 0.9 to 1.8 meters ) . Their tall and refined height bestow vertical stake to garden seam and borders . – Cosmos sulphureus : On the other hand , C. sulphureus tends to be somewhat shorter , ordinarily reaching height of 2 to 4 feet ( 0.6 to 1.2 meters ) . This hold them a majuscule selection for modest gardens or container .

4 . Growth Habit : – Cosmos bipinnatus : C. bipinnatus plants have a more bushy and branching development habit . They produce legion flowers on each stem , creating a dim and lush exhibit . – Cosmos sulphureus : In contrast , C. sulphureus plants have a more upright and erect ontogeny drug abuse . While they still produce plenty of flowers , the overall appearance is slightly more undetermined and airy .

5 . Cultivation Preferences : – Cosmos bipinnatus : C. bipinnatus is native to Mexico , and it thrives in full sunshine and well - drain grime . It is generally more tolerant of cooler temperatures and can withstand a unaccented Robert Frost . – Cosmos sulphureus : C. sulphureus is native to North America and prefers exchangeable growing condition . It also enjoys full Lord’s Day and well - drained soil but necessitate slightly warmer temperature to flourish .

Personal Experience : In my own garden , I have develop both Cosmos bipinnatus and Cosmos sulphureus , and each has brought its own alone dish . The delicate and intricate foliage of C. bipinnatus adds a skin senses of elegance to my bloom bed , while the vibrant and fiery colors of C. sulphureus create a bold command . I have find that both species are relatively easy to get and require minimal maintenance . They pull pollinator like bee and butterfly , bestow extra living and move to the garden .

The main deviation between Cosmos bipinnatus and Cosmos sulphureus consist in their leaf social organisation , flower colors , plant height , growth habit , and cultivation preferences . While C. bipinnatus has delicately cut leaf and a wider range of flower colouration , C. sulphureus has retentive farewell with narrow-minded lobes and flowers that are limited to spectre of yellowish , orangish , or red . Each metal money bring its own unique charm to the garden , and both are deserving considering for any flowered display .

Caroline Bates