Abstract:In order to understand the water-saving irrigation quantity in Shenzhen, the growth and photosynthetic characters of four Liliaceae ground cover plants, such as Ophiopogon japonicas, Dianella ensifolia ‘Silvery Stripe’, Aspidistra elatior and Asparagus cochcinchinensis, were studied under different relative soil water contents by potted water control method. The results showed that all of four ground cover plants grown strongly under relative soil water content of 60% to 65%. Ophiopogon japonicas, Dianella ensifolia cv. ‘Silvery Stripe’ and Asparagus cochcinchinensis grow well with good ornamental value under relative soil water content from 40% to 45%. Aspidistra elatior grows normally under relative soil water content from 20% to 25%. Therefore, it was instructive for water management of Liliaceae ground cover plants.