Have you ever been drenched from above while about to enjoy a meal or cocktail outside a restaurant in summer? Is your neighbour annoyed because your balcony boxes are leaking and the water is dripping on his garden furniture? Reiner Hoepken from a German gardeners’ association recommends using self-watering containers or planter boxes to avoid conflict. Such flower boxes or pots come with an integrated water storage system underneath the planting area. Instead of directly watering the plant, fill up the water tank which will ensure a continuous supply of moisture. Yet, self-watering flower bo…