Tarunarukkhasutta 2.2

2.2

Tassa puriso kālena kālaṃ mūlāni palimajjeyya kālena kālaṃ paṃsuṃ dadeyya, kālena kālaṃ udakaṃ dadeyya.

And from time to time someone would clear around the roots, supply soil, and water it.