This annual has thick weak stems that form a shrubby well-branched habit. It has light green broad lanced-shaped leaves and the yellow to orange daisy-like flowers appear above the foliage from spring to summer. 

Hardiness zones 6 to 11

Calendula officinalis is naturally found in southern Europe commonly growing as a garden escape plant and appearing on disturbed soil along roadways. It grows in well drained poor to moderately fertile moist light sandy to clay soils in an open sunny position and is frost tolerant but drought tender.

Pot Marigold is grown for its flowers and is commonly used in bedding displays or grown in patio pots and planter boxes. It is also planted in cottage gardens or used as a herb in cooking and as a green manure crop. The flowers are cut for floral arrangements and it establishes in one season. ID 188
  
Note:
Late planting will produce flowers from summer to autumn.

Calendula (ka-LEN-dew-luh) officinalis (oh-fiss-ih-NAH-liss)

'Calendula': the calendar (refers to the almost continuous flowering throughout the year); 'officinalis': of the shops (ie sold by herbalists and green grocers - the petals are edible).

Asteraceae (ass-ter-AY-see-ee)	
(Compositae)
Sunflower Family