North African populations mate from April to May, and again in autumn, but this varies greatly according to locality and altitude. Nesting occurs in May and June and more than one clutch may be produced each season. Eurasian and Middle Eastern tortoises generally nest in May or June, but nesting has been observed from April to July. Clutches typically contain between one and seven eggs (average three to four), but large Algerian tortoises (T. g. whitei) lay clutches of as many as 12 to 14 eggs. Depending on their location, this species may hibernate during winter, and aestivate throughout summer (2).
The Greek tortoise is herbivorous, feeding on a variety of herbaceous plants and grasses across its range (2).