Repotting guide

When & how to repot Pygmy Sundew (Drosera scorpioides)

Also called pygmy sundew, scorpion sundew.

More about pygmy sundew

About Pygmy Sundew

Drosera scorpioides · also called pygmy sundew, scorpion sundew · houseplant

Drosera scorpioides is a tiny Western Australian pygmy sundew forming a stalked rosette of dew-tipped tentacled leaves that glisten and catch small insects. It thrives in bright light, pure water, and lean acidic soil, and is famous for propagating from gemmae, tiny clonal buds it produces in cooler months. Compact and rewarding, it is pet-safe.

Mature size: Very small: rosettes roughly 2-5 cm across on short stems up to a few centimetres tall.

Watch for — Etiolated, stretched rosettes: Pale, elongated growth signals insufficient light. Move to a brighter window or add grow lights for compact, red, dewy rosettes.

How to tell pygmy sundew needs repotting

Repotting on a calendar is less reliable than reading the plant. For pygmy sundew, watch for these signs:

Roots spiralling thickly out of the drainage holes or pushing the whole plant up out of the pot.
The pot is so packed that water runs straight through in seconds and barely wets the soil.
It has split a plastic pot, or the rootball is a solid mass with almost no soil left when you slide it out.
Growth and (for pygmy sundew) flowering have clearly stalled despite good light and feeding — but remember this plant likes being snug, so a little crowding alone is not a reason to repot.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot pygmy sundew

Only every 2–4 years, when genuinely crowded. Pygmy Sundew is one of the plants that genuinely prefers a snug pot — it grows and flowers better with its roots a little restricted, so resist the urge to repot it on schedule. A small, stalked rosette-forming perennial pygmy sundew. Unlike flat rosette types, D. scorpioides builds a short upright stem topped by a rosette of tentacled, dew-covered leaves, giving a miniature shrub-like look. In cooler months it produces gemmae (clonal buds) at the rosette centre for reproduction..

What size pot to step pygmy sundew up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. Pygmy Sundew positively prefers a snug pot: it flowers and grows better when the roots are a little restricted. The single biggest repotting mistake here is over-potting — dropping pygmy sundew into a pot two or three sizes up. All that surplus soil holds water the small root system cannot use, stays cold and wet, and rots the roots within weeks. When in doubt, choose the smaller pot.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot pygmy sundew

Early spring, just as new growth restarts, is the ideal window for pygmy sundew. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Step-by-step: repotting pygmy sundew

Confirm it actually needs it. Slide pygmy sundew out and check the roots. Only continue if it is genuinely packed — this plant prefers a snug pot, so if there is still soil and room, put it straight back.
Pick a pot only one size up. Choose a pot just 2–3 cm wider with good drainage. Resist anything bigger; over-potting is the main killer here.
Ease it out gently. Water lightly the day before, then tip pygmy sundew out, supporting the base. Tease the outer roots free only enough to stop them circling.
Repot at the same depth. Add a layer of fresh lean, sandy acidic carnivorous mix, set the plant so the soil line sits exactly where it did before, and backfill around the sides, firming lightly.
Settle it in. Water once to settle the soil, then let it sit. Hold off on more water until the top of the soil dries — fresh soil around a small root system stays wet for a while.

Aftercare

Because the new soil holds more water than the old crammed rootball did, ease right back on watering — let the top of the soil dry before you water pygmy sundew again, or you will rot the roots in the very pot you just moved it to. Keep it out of harsh direct sun for a fortnight. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for pygmy sundew

Pygmy Sundew wants lean, sandy acidic carnivorous mix. Plant in a free-draining, nutrient-free blend leaning sandy: peat (or coir) with a high proportion of lime-free sand and perlite suits the long, fine roots of pygmy sundews. No fertiliser, lime, or standard compost. A deep pot accommodates the surprisingly long taproot relative to the tiny rosette. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting pygmy sundew — frequently asked questions

How often should you repot pygmy sundew?

Only every 2–4 years, when genuinely crowded for pygmy sundew. Only repot pygmy sundew every 2–4 years, and only when it is genuinely root-bound — it flowers and grows best slightly crowded. Step up just one pot size in spring using lean, sandy acidic carnivorous mix. The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does pygmy sundew need?

When is the best time of year to repot pygmy sundew?

Does pygmy sundew like to be root-bound?

Yes — pygmy sundew genuinely flowers and grows best when slightly pot-bound, so do not rush to repot it. The mistake to avoid is over-potting into a much larger pot: the excess soil stays wet, the roots cannot use it, and the plant rots. Only repot every few years and only one snug size up.

Should you fertilise pygmy sundew after repotting?

Not immediately. Wait about 4 weeks after repotting pygmy sundew. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.