Currently, there are an estimated 47 million people with dementia worldwide, with approximately 10 million new cases diagnosed each year. This figure is expected to triple to 130 million in 2050.

In France, the number of dementia cases is estimated at 754,000 and could reach 1,813,000 in 2050.

In a recent literature review, researchers highlighted the many benefits of horticultural therapy and garden environments for people with Alzheimer's or cognitive disorders. They include: alleviating pain, improving attention, decreasing stress, relieving agitation, decreasing the use of medications, such as antipsychotics, as well as reducing falls.

Gardening offers a non-pharmacological approach to achieving these goals and could improve the quality of life for people with Alzheimer's disease or another dementia. As part of a care solution, support services that include social activities, such as gardening, reduce the need for more intrusive and expensive care solutions.

The objective of this research is to evaluate the impact of horticultural

This research is an interventional study involving the human person of category 2 involving only minimal risks and constraints, it is prospective, multicenter and non-randomized.

The study will take place with users of the Lépine Versailles day care centre, the La Porte Verte hospital and the Les Magnolias Geriatric Center, living with cognitive disorders. For the purposes of this study, understanding the instructions is required.

The people welcomed will participate in their usual day supervised by the day reception team.

Part of the group having agreed to participate in the study will carry out the horticultural workshop while the other group will benefit from the workshop usually offered. The study will be done with 52 users with the participation of a supervisor to animate the workshops of the different groups.

Each site will have a workshop that will take place in the morning from 11 a.m. to 12 p.m. and one in the afternoon from 2:30 p.m. to 3:30 p.m. This will make it possible to compare the well-being of users according to the time of the workshop.

Inclusion Criteria:

• Patient having signed an informed and written consent,
• Patient aged over 60,
• Patient with Alzheimer's or related disease,
• Patient benefiting from day care,
• Patient under guardianship or curatorship.

Exclusion Criteria:

• Patient in period of adaptation in day care,
• Patient in temporary care at day care,
• Patient having participated in less than 4 horticultural workshops during the cycle,
• Patient with severe asthma and/or an allergy that does not allow workshops to be carried out,
• Patient with major behavioral problems that make it impossible to carry out the workshops.