Calendula is a genus of about 25 species of one-year and repeated herbaceous plant in the daisy family , Asteraceae that are often known as marigolds . They are aboriginal to Europe , North Africa , Macaronesia and West Asia , and have their centre of diverseness in the Mediterranean Region .

Typically bright icteric to bass orange , sometimes with two - toned petals . The flowers are daisy - like with a central platter surrounded by ray florets . They can be individual or double , depend on the cultivar . Lanceolate to ovate , often with a slightly hairy or mucilaginous texture due to glandular trichomes . They are arrange alternately on the bow . vertical , branching , and can be hairy . The plants maturate up to 30 - 60 cm in height , depend on the salmagundi and produce conditions .

The plant has a bushy ontogeny , which can be quite robust in rich ground . heyday profusely from late springiness through the first rime in autumn , making it a long - season flower . The flowers have a distinctive , somewhat musky or medicinal scent , which can be quite strong , specially in sure cultivars .

well grown from seminal fluid , which can be directly inseminate in the garden or started indoors for early blooms . ego - seed freely if not deadheaded , contributing to its mien in wilder or cottage garden setting . While calendula is an annual in temperate climate , it can sometimes winter in warmer zones or in protected locations , acting as a short - lived perennial .

Calendula Varieties

Calendula officinalis

This is the most common type of calendula , often just referred to as pot marigold . It ’s wide used for its medicative dimension , peculiarly in skin charge due to its anti - inflammatory and healing effect .

Calendula arvensis

have it away as theatre marigold , this species is less vulgar in gardens but can be come up in Thornton Wilder preferences . It has smaller bloom liken to C. officinalis and is not as extensively used for medicinal determination .

Calendula arvensis var . arvensis

A kind of the field marigold , it ’s distinguish by its somewhat different foliage contour or flower size , often specific to certain geographical regions .

Calendula suffruticosa

Also known as Sicilian marigold , this variety is a perennial from the Mediterranean area . It has woody stems and can grow up to 50 cm tall , with efflorescence that are less double than those of C. officinalis .

Calendula stellata

This type feature star - form blossom , hence the name “ stellata . ” It ’s less known in finish but interesting for its unique flower structure .

Calendula alata

This species has wing stems , which is where it get its name ‘ alata ’ ( fly ) . It ’s not usually found in gardens but can be part of botanic ingathering .

Calendula maderensis

aboriginal to Madeira , this calendula is adapt to produce in rough , somewhat arid conditions . It has distinctive , often nonsocial , large flower .

Calendula fulgida

This species is known for its hopeful , shining ( fulgida think glisten ) yellow - orange flower , which are lone and larger than those of many other species .

Calendula denticulata

With exquisitely toothed leaves ( hence ‘ denticulata ’ ) , this species is less common but appreciated for its ornamental value . It ’s not typically used for medicative purposes .

Calendula eckerleinii

A rare mintage named after Eckerlein , an Austrian botanist . It ’s not widely grown but can be found in specialised plant collections , often noted for its home ground in the Balkan Peninsula .

Calendula tripterocarpa

This specie features flowers with three - winged fruits , which is reflected in its name . It ’s less common in cultivation but interesting for botanic work .

Calendula pachysperma

This type has thickset - seeded fruits . It ’s conform to harsh surround , often found in the easterly Mediterranean .

Calendula incana

love for its muddled or hairy leaf , this calendula add texture to any garden . It ’s not commonly used for medicinal purpose but is still ornamental .

Calendula maroccana

aboriginal to Morocco , this sort has been selectively bred for garden purpose , offering vibrant color and larger flowers than some crazy types .

Calendula palaestina

establish in Palestine , this coinage might be of interest for those studying regional plant , with adaptations for the local climate and soil precondition .

Calendula persica

A metal money from Iran , it ’s not widely sleep with outside of botanic band . It has a distinct ontogeny wont , often with a more sprawling nature .

Calendula suffruticosa var . lusitanica

A variant of the Sicilian marigold , this one is from Portugal , establish regional variant in a species already noted for its variance .

Calendula stellata var . integrifolia

A variety of the star marigold with entire , not toothed , leaves . This variation might have different bionomical preferences .

Calendula bicolor

While not officially recognized by some taxonomical classifications , this terminus might refer to varieties or cultivars of calendula with two - strengthen flowers , often a solution of selective breeding .

Calendula officinalis ‘ Lemon Cream ’

Although technically a cultivar of the common calendula , it ’s worth mentioning for its unique lemon - yellow flowers , showcasing how breeding can conduct to new types with clear-cut appearance .

Calendula suffruticosa var . aurantiaca

This potpourri of the Sicilian marigold has vibrant orange flowers . It ’s notable for its somewhat dissimilar peak people of color compared to the typical yellow - orange of many calendula .

Calendula suffruticosa var . tomentosa

Another edition of the Sicilian marigold , this one is characterized by its tomentose ( obtusely hairy ) leaves , giving it a classifiable texture .

Calendula incana var . microcephala

A variation of the woolly calendula with little flower heads . This type might be adapted to specific microclimates or ecological niches .

Calendula officinalis ‘ Kablouna ’

A cultivar of the vulgar pot marigold known for its large , fully twofold flowers . It ’s bred for ornamental purposes , showcasing the breadth of variation that can be achieved through selective fosterage within the species .