Repotting guide

When & how to repot Kenneally's Sundew (Drosera kenneallyi)

Also called Kenneally's sundew.

More about kenneally's sundew

About Kenneally's Sundew

Drosera kenneallyi · also called Kenneally's sundew · tropical

Drosera kenneallyi is a rare member of the petiolaris complex, described from limited locations in the Kimberley region of Western Australia, where it grows on seasonally inundated sandy or gravelly substrates at low altitude. It shares the characteristic monsoon-dependent lifecycle of its petiolaris relatives — growing vigorously in the warm wet season and retreating to a subterranean rhizome in the dry season. The single most important care fact is that this species is among the most heat-demanding of the complex; sustained temperatures below 20 °C at any time of year are detrimental. Drosera is not listed as toxic to cats or dogs by the ASPCA and is considered non-toxic to pets.

Mature size: Rosettes typically 8–12 cm in diameter at peak growth.

How to tell kenneally's sundew needs repotting

Repotting on a calendar is less reliable than reading the plant. For kenneally's 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 kenneally's 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 kenneally's sundew

Only every 2–4 years, when genuinely crowded. Kenneally's 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. Deciduous rosette-forming perennial; erect to semi-erect petiolate leaves with glandular laminae, dying back to the rhizome during the dry season..

What size pot to step kenneally's sundew up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. Kenneally's 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 kenneally's 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 kenneally's sundew

Early spring, just as new growth restarts, is the ideal window for kenneally's 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 kenneally's sundew

Confirm it actually needs it. Slide kenneally's 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 kenneally's 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 carnivore mix — peat or coir with coarse silica sand, 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 kenneally's 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 kenneally's sundew

Kenneally's Sundew wants lean sandy carnivore mix — peat or coir with coarse silica sand. Use a 1:1 to 1:2 peat-to-sand mix, reflecting the gravelly sandy soils of the Kimberley. Completely free of nutrients and with good drainage to prevent waterlogging during the rest phase. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting kenneally's sundew — frequently asked questions

How often should you repot kenneally's sundew?

Only every 2–4 years, when genuinely crowded for kenneally's sundew. Only repot kenneally's 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 carnivore mix — peat or coir with coarse silica sand. The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does kenneally's sundew need?

When is the best time of year to repot kenneally's sundew?

Does kenneally's sundew like to be root-bound?

Yes — kenneally's 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 kenneally's sundew after repotting?

Not immediately. Wait about 4 weeks after repotting kenneally's 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.