Inspect Plants Regularly
You should inspect the plants and flowers regularly since departure of your neighbors to avoid chances of them catching certain diseases or insects.
If you find dead leaves or leaves with showing signs of diseases or insects, immediately remove them. This will stop diseases from further spread, and insects cannot damage them anymore.
Weeds are also enemies of plants and are equally effective in damaging them. So, if you during your inspection tours find weeds growing beyond a certain level, remove them. Removing them immediately is the better option in plants protection and care.
You should also remove bugs and insects from leaves, as leaving them longer spreads their outreach to more leaves and more plants. You can spray insecticide to get better results.
Watering plants is the most important step in the garden care. You should water the plants on a regular basis, depending on weather conditions. If it is winter, you do not need to remove protective stuff around them to water. In that case watering deeply just before winter is enough. You can also add some fertilizers to the plants. It will keep them healthy.
Add Flower Plants
You can also add some flower plants at empty places to make the garden more colorful. In this way you will be able to even impress your neighbor, and they can grateful for your genuine efforts.