The Complete Guide to Orchid Pots, Potting Mix and Repotting

If you've ever wondered why your orchid came in a see-through flimsy plastic pot full of holes, sitting inside a much nicer ceramic one — that's not an accident, and it's the key to almost everything in this guide. Orchids have completely different needs from typical houseplants when it comes to pots, mix, and repotting, and getting these three things right solves more orchid problems than anything else you can do.

Orchids need pots with excellent drainage and airflow — never ordinary compost — and a bark-based potting mix that mimics the loose, open conditions their roots evolved in. Repot every one to two years, ideally just after flowering, using a pot only slightly larger than the last. Here's exactly how to do each part properly.

Why Orchids Need Special Pots and Mix

Most houseplants grow in soil, with roots that expect to be surrounded by moisture-retaining material. Orchids are different: the majority sold as houseplants (Phalaenopsis, Oncidium, Cambria and others) are epiphytes, meaning in the wild they grow attached to tree bark, with roots exposed to open air rather than buried underground.

That single fact explains almost every orchid-specific product on the market. Ordinary potting soil or compost holds water tightly around the roots, which suffocates them — orchid roots need to dry out and breathe between waterings, not sit in permanently damp material. Use normal compost, and you're not giving an orchid a boost; you're setting up root rot within weeks.

This is also why orchid pots look so different from standard plant pots, which brings us to the first decision you'll actually need to make.

Types of Orchid Pots: Which One to Choose

Plastic Pots (Slotted or Clear)

The pot most orchids arrive in from a nursery. Slotted or perforated plastic pots maximise airflow to the roots, while clear plastic pots go a step further, letting light reach the roots directly — orchid roots contain chlorophyll and photosynthesise, so some growers find clear pots genuinely help vigour, not just visibility.

Pros: Cheap, lightweight, excellent drainage, easy to check root health at a glance (clear pots)
Cons: Not attractive enough for most living rooms on their own

Ceramic and Decorative Planters

Ceramic orchid planters are usually a display layer, not the actual growing pot — the orchid stays in its plastic inner pot, which then sits inside the decorative outer one. This is worth knowing before you buy: a solid ceramic pot with no drainage holes, used as the sole pot, will trap water and kill an orchid fast.

Pros: Looks good, protects furniture, hides the working pot
Cons: Needs drainage holes (or use as an outer cover only) — never pot an orchid directly into a solid ceramic pot with no way for water to escape

Terracotta Pots

Porous and breathable, terracotta wicks moisture away from the mix, which suits orchids that dislike sitting wet — Cattleya and Vanda in particular. Less commonly used for Phalaenopsis, which prefer to stay slightly more evenly moist.

Pros: Naturally helps prevent overwatering, sturdy
Cons: Heavier, can dry out mix too fast for some genera, less common in slotted orchid-specific designs

Slatted Wooden Baskets

Used almost exclusively for Vanda orchids and other orchids grown bare-root or with minimal mix — the open slats let roots hang freely and dry quickly, matching how Vandas naturally grow in the wild.

Pros: Ideal for high-light, high-humidity growers like Vanda
Cons: Not suitable for most other orchid types; needs daily watering/misting in warm weather

Bottom line: for most orchids sold as houseplants (Phalaenopsis, Oncidium, Cambria, Dendrobium), a slotted or clear plastic pot as the growing pot, inside a decorative outer planter with no drainage needed, is the easiest and most reliable setup.

What's Actually in Orchid Potting Mix

Orchid "compost" bears almost no resemblance to compost for other plants. Dependant on brand, a typical bag may contain a combination of:

Bark chips — the base of most mixes, providing structure and airflow while holding a moderate amount of moisture

Sphagnum moss — holds more water than bark alone; often used for orchids that dislike drying out fully, like Paphiopedilum

Perlite — small white volcanic granules that improve drainage and prevent the mix from compacting

Charcoal — helps keep the mix fresh and absorbs impurities, preventing the mix from turning sour over timeDifferent genera want different ratios. A coarse, mostly-bark mix suits Phalaenopsis and Cattleya, which prefer to dry out between waterings. A finer mix with more moss suits Paphiopedilum and young seedlings, which need more consistent moisture. If you're growing several types, it's worth checking our type-by-type care guide rather than assuming one mix suits everything.

Can I Use Normal Potting Soil or Compost for Orchids?

No — this is one of the most common and most damaging orchid mistakes. Ordinary multi-purpose compost is far denser than orchid mix and holds moisture right against the roots, cutting off the airflow they depend on. Roots that stay wet for too long stop functioning properly and begin to rot, often within just a few weeks of repotting into the wrong material.

If you've already potted an orchid into regular compost, the fix isn't to water less and hope — it's to repot into proper orchid mix as soon as possible, checking the roots for early rot while you're at it.

How to Repot an Orchid, Step by Step

The best time to repot is just after flowering ends, when the plant is entering a new growth cycle, though a plant with rotting roots or a completely broken-down mix should be repotted immediately regardless of season.

🪏 Remove the orchid from its old pot. Gently squeeze a plastic pot to loosen it, or carefully break away old mix if it's compacted. Don't yank the plant out by the stem.
🪏 Inspect and trim the roots. Healthy roots are firm and silvery-white or green. Using clean, sharp scissors, trim away any roots that are brown, hollow, or mushy — these won't recover and can spread rot to healthy roots if left on.
🪏 Choose the right pot size. Pick a pot only slightly larger than the old one — orchids generally flower better a little pot-bound, and an oversized pot holds excess moisture the roots don't need.
🪏 Add fresh mix. Always use new orchid mix rather than reusing old material, which breaks down and loses its structure over time. Old, compacted mix is one of the most common repotting mistakes.
🪏 Position the plant and fill around the roots. Hold the orchid so the base sits just at the surface of the mix, then work fresh mix gently around the roots, tapping the pot to settle it without compacting it too tightly.
🪏 Hold off on watering immediately. Wait a few days before the first watering to let any damaged roots begin to heal — watering straight into fresh cuts increases the risk of rot setting in.

An orchid repotting kit (mix, a suitably sized pot, and clean cutting tools) makes this whole process easier if you don't already have the materials on hand.

How Often Should You Repot an Orchid?

As a general rule, every one to two years — but the mix itself is a better guide than the calendar. Repot sooner if you notice any of the following:

🌱 The mix looks broken down, dark, and soil-like rather than loose and chunky

🌱 Water runs straight through without the mix absorbing any, meaning it's lost its structure

🌱 The plant has become unstable or top-heavy in its current pot

Repotting too rarely is far more common — and more damaging — than repotting too often, since old mix breaking down is one of the leading causes of root rot in otherwise well-cared-for orchids.

Frequently Asked Questions

Do orchids need special pots?

Yes — orchids need pots with strong drainage and airflow, typically slotted or clear plastic, because their roots need to dry out between waterings and can't tolerate sitting in trapped moisture the way most houseplants can.

Can I use normal potting soil for orchids?

No. Regular compost holds far too much moisture around orchid roots and is one of the most common causes of root rot. Always use a bark-based orchid potting mix instead.

How do I know what size pot my orchid needs?

Choose a pot only slightly larger than the current one — as a guide, one that leaves about 2–3cm of space around the existing root mass. Orchids generally flower better when a little pot-bound rather than given a lot of extra room.

How often should I repot my orchid?

Every one to two years for most orchids, or sooner if the potting mix has broken down, roots are growing out over the pot's edge, or water is running straight through without being absorbed.

What's the difference between orchid mix and orchid compost?

They're generally the same thing, sold under different names — a loose blend of bark, and often sphagnum moss, perlite, or charcoal, designed for drainage and airflow rather than moisture retention like traditional compost.

Final Thoughts

Pots and potting mix aren't a cosmetic afterthought with orchids — they're one of the two or three things that determine whether a plant thrives or slowly rots. Get the pot type, mix, and repotting timing right, and you remove the single biggest cause of orchid problems before it starts.

Browse our full range of orchid pots, potting mix, and repotting kits to get everything you need in one place.