wither on the vine

wither on the vine AND die on the vine (fail because of neglect or absence of action) ≈ (так и) не осуществиться; зачахнуть; ≈ сойти на нет || остаться на бумаге

Example: The idea nearly withered on the vine.

Example 2: The state program, once a nationwide model, is now withering on the vine.

If there's too little moisture, the crop withers on the vine.