You can have flowers, herbs, veggies, etc. anywhere!
You don't have to contend with poor soil.
You don't have to contend with tree roots.
Pots can add height and textural interest compared to planting plants in a flat flower bed.
Pots can be moved or grouped differently to accommodate changing moods or need for instant color for an event.
Pots can be moved to compensate for poor siting (such as the plant needs more light or shade).
Plants can be easily changed out for change of season.
Plants in pots usually require more frequent watering than established beds.
Perennials in pots may not (usually will not) over-winter in an unprotected pot. (But this is easily remedied: Bringing the pot into a cold inside location (like a garage) or sinking the pot into the ground is enough protection for most perennials.)
Not all plants are suited to pot culture (unless you have a big pot).
Make sure that the pot you use has a hole or holes in the bottom (or on the side at the bottom) for drainage. Rocks in the bottom of a hole-less pot is not enough drainage.
Select a pot to complement the plants used and create the desired look; consider size, style, and color among other things. Remember that anything with a hole on the top (for the plants) and a hole on the bottom (for water to run out) can be used as a container.
Fill entire pot with a good light-weight potting soil (We recommend Metro Mix 902 – it is what we use!) Do not use garden dirt in a pot. More soil = more root room = better plant growth. More soil = more moisture retention = less watering. Filling the bottom of the pot with rocks will not give the plants the benefit of more soil.
Do not reuse last year's potting soil in the pot. (Till it into your garden.) Used soil can harbor fungus and bacteria harmful to plants.
We recommend the use of "water crystals" in pots to help retain moisture. Do not use crystals on succulents.
We also recommend the use of Osmocote timed-release fertilizer to feed your plants all season.
Place pots on feet (especially larger pots) to ensure drainage from bottom hole. Bricks make great pot feet.
Plant in odd numbers. Two plants in a pot makes the planting look linear; 4 plants in a pot makes it look square.
Plant combinations in one (larger) pot or plant (smaller) pots with one plant in each and group the pots.