The size of hosta plant varies not only with age, but also with soil and climatic conditions. The following generally agreed classification groups hostas according to the size of their mature leaves when grown in good soil and in good conditions.

	Height in inches	Height in cm	Leaf size sq inches	Leaf size sq cm
Miniature	< 6	15	2 - 6	13 - 40
Small	6 - 10	15 - 25	6 - 25	40 - 160
Medium	10 - 18	25 - 46	25 - 81	160 - 530
Large	18 - 28	46 - 71	81 - 144	530 - 900
Giant	> 28	> 71	>145	> 900

Please bear in mind this is a guide only and the size of your hosta will depend on growing conditions.