In the future you might consider planting several plants together in larger pots together. Combination pots can look nice for longer. You might even combine plants like Echinacea with low growing annuals such as Sunpatiens or Vinca for the summer. Dahlias do well in combination pots. Mints can be used as fillers in combined pots. You would learn which combinations work for you. Watering one larger pot is easier than caring for many small pots.