Pots & Planters

Planter Diameter and Root Depth

Diameter is the first filter because it eliminates the most products. 803 listings state a size in inches, running 2.5 to 74.5 with a median of 14 and clusters at 16, 12, 10 and 8.

Diameter is not the useful number on its own. A 12-inch pot that is 6 inches deep and a 12-inch pot that is 14 inches deep hold entirely different root volumes, and the depth figure is the one that decides whether a tomato or a shrub will sit in it.

Read both dimensions.

Planter Materials

Metal dominates at 528 listings, with 147 of those specifically galvanised. Ceramic follows at 164, wood at 165 and resin at 71. Each behaves differently outdoors and the differences are seasonal rather than cosmetic.

Ceramic cracks in a hard freeze if it is left full of wet soil. Metal heats in direct sun and can cook shallow roots on a south wall. Wood and resin sit between the two, and cedar is the wood that lasts without treatment.

Galvanised steel is the safe default outdoors, which is why the catalogue has moved that way.

Drainage Holes and Saucers

144 listings state drainage and 40 state a saucer. Neither is universal, and a decorative planter sold for indoor use frequently has no hole at all.

A pot without drainage is a reservoir.

Anything planted directly into one needs either a drilled hole or a nursery pot sitting inside it, so check the listing before assuming the hole is there.

Self-Watering and Hanging Planters

79 listings are self-watering and 77 are hanging. Self-watering planters hold a reservoir below the soil and wick upward, which suits containers that dry fast and suits nobody who overwaters.

Hanging and railing planters are sized smaller, typically 8 to 14 inches, because weight matters when the bracket takes the load.

A full 14-inch hanging basket is heavier than most people expect and is the usual reason a bracket fails.

Planters and Raised Beds

A planter is bought on diameter; a raised bed is sized by footprint and height.

The soil and mulch collection carries the mixes that go in either, sized in quarts and cubic feet rather than in inches.

Planter Types Compared

Bands cover the middle half of listings in each material. Frost behaviour assumes the pot is left outdoors with soil in it over winter.

Planter Questions

What size planter do I need?

Diameter here runs 2.5 to 74.5 inches with 16, 12 and 10 the most stocked. Check depth as well, since two pots of the same diameter can hold very different root volumes.

Do all planters have drainage holes?

No. 144 of 1,821 listings state drainage. Decorative indoor planters frequently have none, so read the listing or plan to drill.

Will a ceramic pot survive winter outdoors?

Not reliably if it is left full of wet soil, which expands as it freezes. Metal, wood and resin all handle frost better.

Are self-watering planters worth it?

For containers that dry out fast, yes. 79 listings here are self-watering. They suit nobody heavy-handed with a watering can, since the reservoir removes the feedback.

What is the most stocked planter material?

Metal at 528 listings, of which 147 are specifically galvanised. Ceramic and wood follow at 164 and 165.