Recommended language about overgrown lawn

[Tara Sonnabend]

Hi all, I have a tenant who I have allowed to do their own lawn service for reduced rent. I recently saw that they edging or trimming along the perimeter and some areas have been quite overgrown. Does anyone have recommended language to notify the tenant of requirements related to lawn maintenance? The lease didn't outline details, so I want to be mindful of how things are worded. Thanks in advance!