Repotting guide

When & how to repot Tenby Daffodil (Narcissus obvallaris)

Also called Tenby Daffodil, St David's Daffodil.

More about tenby daffodil

About Tenby Daffodil

Narcissus obvallaris · also called Tenby Daffodil, St David's Daffodil · flowering

The Tenby Daffodil is a compact, early-blooming wild daffodil naturalised in Pembrokeshire, Wales, bearing solitary rich-golden flowers with a wide trumpet on slender stems in early spring. It is one of the UK's rarest native flowers. All Narcissus parts are toxic to pets and people; contains lycorine and alkaloids.

Mature size: 20-30 cm tall in flower

How to tell tenby daffodil needs repotting

Repotting on a calendar is less reliable than reading the plant. For tenby daffodil, 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 tenby daffodil) 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 tenby daffodil

Only every 2–4 years, when genuinely crowded. Tenby Daffodil 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. Clump-forming bulbous perennial, summer-dormant.

What size pot to step tenby daffodil up to

Go up only one pot size — roughly 2–3 cm (about an inch) wider in diameter, no more. Tenby Daffodil 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 tenby daffodil 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 tenby daffodil

Early spring, just as new growth restarts, is the ideal window for tenby daffodil. 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 tenby daffodil

Confirm it actually needs it. Slide tenby daffodil 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 tenby daffodil 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 moisture-retentive but well-drained loam or clay-loam, 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 tenby daffodil 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 tenby daffodil

Tenby Daffodil wants moisture-retentive but well-drained loam or clay-loam. Does well in slightly acidic to neutral garden soil. Heavy clay should be improved with coarse grit and organic matter to prevent waterlogging but retain enough moisture in spring. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting tenby daffodil — frequently asked questions

How often should you repot tenby daffodil?

Only every 2–4 years, when genuinely crowded for tenby daffodil. Only repot tenby daffodil 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 moisture-retentive but well-drained loam or clay-loam. The key mistake is over-potting: a too-big pot stays wet and rots the roots.

What size pot does tenby daffodil need?

When is the best time of year to repot tenby daffodil?

Does tenby daffodil like to be root-bound?

Yes — tenby daffodil 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 tenby daffodil after repotting?

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