How to Choose Planters for Indoor and Outdoor Spaces

Quick answer

Choose the planter-afb79a46b9ab2cddd6b2ffc7-2580804">planter by location first. Indoors, pick a pot 1–2 inches wider than the root ball with a saucer or cachepot to catch water. Outdoors, match the material to your climate and weight limits, and never skip drainage. For herbs, a pot at least 8–10 inches wide with drainage holes is the practical minimum.

Most planter mistakes happen before you ever touch soil. A pot that looks right in the store can be too small for the root ball, too heavy for a balcony rail, or too thirsty for a windowsill that only gets watered on Sundays.

This guide walks through the decisions in the order they actually matter: size, material, drainage, and placement. You will also see how stoneware pieces from the dinnerware collection can work as cachepots and herb planters, and where they should stay out of the weather.

Start with size, not style

Measure the nursery pot your plant came in, then go up 1–2 inches in diameter for most houseplants. Going much larger leaves a wide ring of wet soil around the roots, which is a common cause of rot. For herbs, an 8–10 inch pot supports a single bushy plant like basil or mint; a 12-inch pot handles a mixed herb trio.

Height matters as much as width. Tall plants in shallow pots tip over, and deep pots waste soil for shallow-rooted plants. Check the root ball depth, then choose a planter that leaves 1–2 inches of headroom for watering.

• If you are between two sizes, size up only when the plant is actively growing.
• For a windowsill, measure the sill depth before buying; a 10-inch pot plus saucer often overhangs.

Match material to the space

Ceramic and stoneware hold moisture longer, stay put in wind, and look finished indoors. They are heavier and can crack if water freezes inside them, so outdoor use in cold climates needs care. Plastic and resin are light, cheap, and easy to move, but they dry out faster and can blow over on a balcony.

Terracotta breathes and dries quickly, which suits herbs and succulents but means more frequent watering. Glazed ceramic sits in the middle: slower to dry than terracotta, more weather-resistant than unglazed clay, still heavy enough to stay put.

• On a windy balcony, weight is a feature, not a flaw.
• If you move pots often, plastic or a lightweight composite saves your back.

Drainage decides how forgiving the pot is

A drainage hole lets excess water escape so roots are not sitting in a puddle. If your planter has no hole, use it as a cachepot: keep the plant in its nursery pot, water at the sink, let it drain, then set it back. That routine works well for stoneware bowls and other decorative pieces that were not designed as planters.

For outdoor planters, one clear hole is better than several tiny ones that clog with soil. Add a layer of mesh or a coffee filter over the hole to keep soil in and let water out. A saucer indoors protects the surface; outdoors, raise the pot on feet so it does not sit in standing water.

• If water pools on the surface for more than a few minutes, the soil or the hole is blocked.
• Never seal a drainage hole to make a pot waterproof; use a liner instead.

Indoor placement: light, humidity, and surfaces

Indoor planters sit near furniture, so plan for water. A saucer or a waterproof liner protects wood and fabric. In low-light rooms, choose a pot that fits the plant's mature size rather than its current size, because repotting in a dim room is slow work. In bright, dry rooms, glazed ceramic slows evaporation and reduces how often you water.

Grouping plants raises local humidity, which helps ferns and tropicals. If you group them, keep pots similar in height so the arrangement reads as one display rather than a collection of mismatched sizes.

• Rotate pots a quarter turn each week so growth stays even.
• Empty saucers after watering to prevent gnats and rot.

Outdoor placement: weather, weight, and winter

Outdoors, the planter has to survive wind, sun, and temperature swings. Glazed ceramic and stoneware handle sun and rain well in mild climates, but freeze-thaw cycles can crack them if water sits in the soil. In cold regions, empty and store ceramic pots before the first hard freeze, or choose frost-resistant materials.

Weight is a safety issue on balconies and roof decks. A large ceramic pot plus wet soil can exceed a railing's limit. Check your building's rules, and place heavy pots against the wall rather than at the edge. For herbs near a kitchen door, a lighter pot you can move into shade during a heat wave is more practical.

• Dark pots in full sun heat up fast and can cook shallow roots.
• If you cannot lift the pot when wet, it is too heavy for a high shelf or rail.

The best planter for herbs is the one you will water

Herbs want drainage, sun, and consistent moisture. A glazed ceramic or stoneware pot with a drainage hole and a saucer covers all three indoors. Outdoors, terracotta or a weather-safe ceramic works if you water more often in summer. Avoid narrow-necked decorative pots for herbs; they are hard to plant, hard to prune, and hard to repot.

If you keep herbs on a kitchen counter, a set of stoneware bowls can double as planters when you keep the nursery pot inside and empty the water after each soak. That keeps the bowl clean and the roots healthy.

• One herb per 8–10 inch pot beats cramming three into a 6-inch pot.
• Pinch herbs often; it keeps plants bushy and usable.

Decision rules for choosing a planter

• If the plant stays indoors: Choose a glazed ceramic or stoneware planter 1–2 inches wider than the root ball, and always use a saucer or liner. If the pot has no drainage hole, treat it as a cachepot and keep the plant in its nursery pot. Indoor rule: drainage plus a saucer, or no direct planting.
• If the plant stays outdoors: Match material to climate. In mild climates, glazed ceramic and stoneware work well. In freeze-thaw regions, choose frost-resistant materials or store ceramic pots before winter. Weight matters on balconies and roof decks. Outdoor rule: weather first, weight second, style third.
• If you are growing herbs: Use a pot at least 8–10 inches wide with a drainage hole and a saucer. Terracotta dries fast and suits sunny kitchens; glazed ceramic holds moisture longer for forgetful waterers. Herb rule: one plant per pot, drainage always.
• If the pot has no drainage hole: Do not drill it unless the material is designed for it. Use it as a cachepot with the plant in a nursery pot, water at the sink, let it drain fully, then return it. No hole means no direct planting.
• If you are unsure between two sizes: Buy the smaller size for slow growers and the larger size for fast, active growers. Oversized pots hold excess wet soil and slow root growth. When in doubt, size to the root ball, not the room.

Stoneware pieces that work as planters or cachepots

• Pasta Bowls: Organically shaped and one-of-a-kind, hand-finished in Portugal, sold in a set of 4; stoneware contains natural flecks that may show through lighter glazes, and slight variations may occur. The wide, low shape holds a nursery pot for herbs or small houseplants, and the hand-finished stoneware looks intentional on a counter or shelf. Keep a saucer underneath and empty it after watering.
• Dessert Plates: Petite plates, organically shaped and one of a kind, hand-finished in Portugal, sold in a set of 4; stoneware contains natural flecks that may show through lighter glazes. Use one as a base under a small pot to catch drips and protect a sill or table. The low profile keeps the pot stable without hiding it.
• Salad Plates: Flat with a low rim and easily stackable, organically shaped and one-of-a-kind, hand-finished in Portugal, sold in a set of 4; stoneware contains natural flecks that may show through lighter glazes. A stackable plate works as a movable drip tray when you water several small pots in one session, then stack them away when not in use.
• Dinner Plates: Simple and elegant, organically shaped and one-of-a-kind, flat with a low rim and easily stackable, hand-finished in Portugal, sold in a set of 4; stoneware contains natural flecks that may show through lighter glazes. A larger plate under a bigger pot keeps water off wood surfaces and is easy to wipe dry. Stackable means it stores flat when not in use.

Who this planter approach fits

Best for

• Renters and apartment dwellers who need movable, drainage-safe pots for balconies and windowsills
• Home cooks growing basil, mint, and parsley in a kitchen with a sunny counter
• Anyone using stoneware bowls or plates as cachepots and drip trays instead of buying new planters

Not for

• Gardeners planting directly into the ground, who need in-ground soil amendments rather than containers
• Anyone wanting a fully self-watering system, which requires a reservoir planter not covered here
• Cold-climate outdoor use of unglazed or thin ceramic pots that may crack in freeze-thaw cycles

Pick the pot for the spot, not the shelf. Measure the root ball, choose a material that suits your climate and watering habits, and make sure water can escape. If you want a stoneware piece that earns its place twice, a set of Pasta Bowls or Dessert Plates can hold a nursery pot and a saucer while looking at home on the counter.