Assertion: lilac's flower | /r/HasProperty | spent
Facets:
Source sentences:
text: Annual pruning is not required, but you can help the lilac prepare for newer flower buds by cutting off blooms at the main stem after the flowers are spent.
text: Shaping ought to be done no later than June as this will result in the removal of next year’s flower buds, and rather than a harsh prune when the flowers are spent it is better to remove the heads as they expire.