Fig1. The diagram of the benefits of community garden (self-drawn by author)

Fig2. The diagram of the effects of epidemic on the elderly (self-drawn by author)

Fig3. The summary of the literature review (self-drawn by author)

Fig4. Food system map in Nanjing (Source: GIS self-drawn by author)

Fig5. Locations of three cases (Source: Satellite map)

Fig6. Typology of growing vegetables (Source: site investigation video)

Fig7. Age differences in three cases (self-drawn by author)

Fig8. Sources of daily shopping in three cases (self-drawn by author)

Fig9. The convenience of offline shopping in three cases (self-drawn by author)

Fig10. Frequency of online shopping with apps in three cases (self-drawn by author)

Fig11. Impact of epidemic on the psychology in three cases (self-drawn by author)

Fig12. Impact of epidemic on daily shopping in three cases (self-drawn by author)

Fig13. Current status and willingness of the elderly to community gardens in three cases (self-drawn by author)

Fig14. The expected functions of edible community garden (self-drawn by author)

Fig15. People’s expectation for the output of edible community garden (self-drawn by author)

Fig16. People’s wishes for the kinds of vegetables in the edible community garden(self-drawn by author)

Table1. The contents of research methods (self-drawn by author)

Table 2. The definition of community garden (self-drawn by author)

Table3. The vegetable planting schedule in Nanjing (self-drawn by author)

Table4. The criteria of three cases (self-drawn by author)

Table5. The table of multivariable summary (self-drawn by author)