According to the 1956 Census, 60 per cent of the 563,052 inhabited private dwellings had a garden. Some gardens provided the following proportionate vegetable needs (other than potatoes).
| Proportion of Needs | Percentage of Total Specified |
| All | 8.73 |
| Three-quarters | 4.41 |
| One-half | 8.40 |
| One-quarter | 10.33 |
| Under one-quarter | 18.40 |
| Nil | 49.73 |
(New Zealand Official Year Book, 1964)
Co-creator
Iain Gordon McKenzie Forbes, M.AGR.SC., Horticultural Division, Department of Agriculture, Dunedin.
