As an important part of world cultural heritage, waterscapes in Chinese classical gardens are renowned for their unique design, rich cultural connotations, and distinctive esthetic value. However, objective studies of their impact on mental health are lacking. This paper focuses on Xishu Garden, a Chinese classical garden, and examines four types of waterscapes (for a total of twelve) using eye-tracking technology and the Perceived Restorativeness Scale (PRS). The aim of this study is to explore the restorative effects of different types of waterscapes with visual and audiovisual conditions, with particular attention paid to their mechanisms of action. The research results indicate that (1) waterscapes with an audiovisual interaction have a greater restorative value; (2) dynamic waterscapes have greater visual appeal than still landscapes do, but the latter have stronger environmentally restorative effects; and (3) the visual behavioral characteristics of waterscapes change during audiovisual interactions. This study contributes theoretical support for the maintenance and enhancement of Chinese classical gardens and the planning and design of modern urban green spaces, and it enriches our understanding of the role of waterscapes in restorative environments.

Amid growing “nature deficit” associated with urbanization and indoor living, flowering plants are increasingly used to support psychological restoration. Yet evidence on how floral color and structural morphology jointly shape restorative outcomes remains limited. This study employed a within-subjects, repeated-measures design, utilizing physiological instruments and psychological questionnaires to investigate the physiological and psychological restorative benefits of Hydrangea macrophylla and to quantify the differences in restorative effects across five colors (blue, pink, white, mauve, red), two inflorescence types (mophead, lacecap), and two petal structures (single, double). Twenty-eight healthy young adults viewed 15 live hydrangea stimuli under controlled laboratory conditions. Multimodal outcomes combined objective measures—eye-tracking and single-channel EEG—with subjective measures (SD; POMS). Hydrangea exposure significantly reduced negative mood, and color and structure exerted distinct and interactive effects on visual attention and arousal. Red and mauve elicited larger pupil diameters than white and pink, while lacecap inflorescences were associated with lower cognitive load and improved attentional recovery relative to mophead. Double-petaled forms showed greater attentional dispersion than single-petaled forms. Interactions indicated that morphology modulated color effects. The mauve lacecap double-flowered cultivar (M02) showed the strongest observed restorative potential within this sample. These findings highlight the importance of integrating color and structural cues when selecting flowering plants for restorative environments and horticultural therapy, and they motivate field-based replications with broader samples and higher-density physiology.