ArticleFrontiers in psychology2026
Timing for green prescription: comparing the immediate and cumulative effects of different duration horticultural therapy programs on college students' mental health.
Article in Frontiers in psychology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Although the mental health benefits of horticultural therapy (HT) are well-established, the influence of intervention duration and the temporal dynamics of effects remain insufficiently explored, lacking evidence for optimal protocol design. Methods: This study employed a comparative experimental design with a short-duration HT program (4 sessions, Results: For immediate effects, all psychological and physiological indicators showed significant improvement after each single session (| Conclusion: HT activities provide stable and significant immediate mental restoration, unaffected by the overall program duration. While shorter programs are effective for transiently alleviating anxiety and depression, longer durations are crucial for fostering a stable and enduring sense of meaning in life. This study reveals a differentiated "dose-response" relationship for HT, providing refined evidence for designing time-sensitive intervention strategies tailored to specific mental health objectives.
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