Tenby Daffodil (St David's Daffodil) care

Light

Tenby Daffodil is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Prefers dappled light under deciduous trees or open meadow conditions. In full shade it produces leaves but rarely flowers. Tolerates morning direct sun well. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water tenby daffodil when the top 3-5 cm of soil is dry during active growth, roughly every 7-10 days. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Needs consistent moisture during leaf and flower production in late winter and spring, then can tolerate summer drought once dormant. Never let bulbs sit in waterlogged soil.

Soil and pot

Tenby Daffodil grows best in 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. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Tenby Daffodil sits happiest at around 50-70% humidity and 2-18°C (36-64°F). Suited to the cool, maritime climate of the British Isles. Tolerates high ambient humidity well. Ensure airflow around dense plantings to reduce botrytis risk in wet springs. If you keep the room above 2 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed tenby daffodil sparingly. Apply a balanced bulb fertiliser after flowering while leaves are still green, to help build energy in the bulb for next year. Avoid high-nitrogen feeds that promote lush leaf at the expense of flowers. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on tenby daffodil in the Growli community. Each is annotated with the most common cause so you know where to start.

• Narcissus fly (Merodon equestris) — The bulb fly lays eggs near the base; larvae tunnel into bulbs. Avoid disturbing foliage in late spring to deter egg-laying; inspect bulbs at lifting.
• Narcissus basal rot (Fusarium) — Fungal rot enters through the basal plate, causing yellowing and collapse. Remove infected bulbs immediately and improve drainage.
• Eelworm (stem nematode) — Causes distorted, speckled leaves and stunted growth. Affected clumps should be lifted and destroyed; there is no effective chemical control.
• Failure to naturalise — In mown lawns, delay the first cut until foliage has completely died down (usually 6 weeks after flowering) to allow carbohydrate return to the bulb.

Companion plants

Tenby Daffodil pairs well with Anemone nemorosa, Muscari armeniacum, Primula vulgaris, and Viola odorata. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Naturalises readily by offsets; divide congested clumps every 4-5 years just after foliage dies down. Seed propagation is slow and not recommended for preserving this rare native genotype. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Tenby Daffodil is toxic to pets. All parts of Narcissus obvallaris, like all daffodils, are toxic to dogs, cats, and horses. The ASPCA lists Narcissus as toxic, causing vomiting, salivation, diarrhoea, convulsions, and cardiac arrhythmia. The bulb is the most dangerous part. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Tenby Daffodil deep-dive guides

Every aspect of tenby daffodil care, each with its own calibrated guide:

• Common tenby daffodil problems & fixes
• Tenby Daffodil watering schedule
• Tenby Daffodil light requirements
• Best soil mix for tenby daffodil
• Tenby Daffodil fertilizing guide
• When to repot tenby daffodil
• How to propagate tenby daffodil
• How to prune tenby daffodil
• What's eating my tenby daffodil?
• Tenby Daffodil growth rate & size
• Tenby Daffodil cold hardiness
• Tenby Daffodil temperature & humidity
• Is tenby daffodil toxic to cats & dogs?
• Is tenby daffodil toxic to cats?
• Is tenby daffodil toxic to dogs?
• All 26 Narcissus varieties
• Getting tenby daffodil to bloom

Featured in these plant shortlists

Tenby Daffodil qualifies for 7 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• Best small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Browse all 30 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Tenby Daffodil is also commonly called Tenby Daffodil or St David's Daffodil.

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