Speaking as a tenant here - if your property has a garden, I can highly recommend charging a little extra for the rent and paying a gardener. At least that way you know it's going to get done and not be left up to a clueless black thumb like me

Also, definitely make sure you do your homework on property managers and their practices as they vary widely. Some will recommend having a maintenance allowance that they can authorise straight away for minor repairs, which is also a good idea - they'll then clear any of the bigger stuff with you first before getting it done. Be aware though, stuff like hot water systems are considered urgent repairs and have to be completed within certain timeframes in most states.