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Narcissus, Genus, 'Thalia', Cultivar,

Genus
Cultivar

thalia daffodil

Amaryllidaceae

Hybrid origin (Division 5 Triandrus; N. triandrus parentage; M. van Waveren & Sons, Netherlands, 1916)

Attracts Pollinators Deer Resistant Drought Tolerant Fragrant (moderate)Container Friendly

SunFull Sun – Part Shade

WaterMedium · drought-tolerant

HardinessZones 3–9

Overview

Narcissus 'Thalia' is a bulbous perennial reaching 14–16 inches (36–40 cm) tall with a spread of 3–4 inches (8–10 cm) per bulb. This Division 5 Triandrus hybrid carries 2–3 pendant pure white flowers per stem, each 2–2.5 inches (5–6 cm) across with a short reflexed cup and slightly swept-back perianth segments. The pendant flower habit combined with the multiple-flowers-per-stem character runs typical of Triandrus hybrids, which carry N. triandrus in their parentage. Narrow strap-shaped basal leaves run 8–12 inches (20–30 cm) long and gray-green. Flowers open in April through May across the mid-to-late Narcissus season. Growth rate runs moderate. Hardy to zone 3. Flowers carry sweet fragrance. The cultivar naturalizes well in well-drained soil. The pure white pendant flower form combined with the graceful multi-flowered stems supplies a refined visual register that separates the cultivar from the larger-flowered single-blossom Division 1 and 2 daffodils. Bred by M. van Waveren & Sons, Netherlands, and registered with the Royal Horticultural Society in 1916, which places this among the oldest-surviving Triandrus hybrids in continuous commercial trade.

Native Range

Narcissus species are native to Europe, North Africa, and western Asia, with the genus centered on the Iberian Peninsula. 'Thalia' is a Division 5 (Triandrus) hybrid carrying N. triandrus parentage. Bred by M. van Waveren & Sons in the Netherlands and registered with the Royal Horticultural Society in 1916, which places this among the oldest-surviving Triandrus hybrids in continuous commercial bulb trade.

Suggested Uses

Planted in perennial borders, under deciduous trees, rock gardens, or naturalized in light woodland at 4–5 inch (10–13 cm) spacing and 5–6 inches (13–15 cm) deep in zone-3-and-warmer gardens. Pure white pendant flowers combined with sweet fragrance fit the cultivar to refined plantings where larger brighter daffodils would read as visually heavy. Mid-to-late season bloom extends the Narcissus display beyond the earlier Division 1 trumpets and Division 2 large-cup cultivars. Partial shade under deciduous trees supplies an acceptable position because flowering runs before full canopy leaf-out. All Narcissus bulbs and plant parts run toxic if ingested by pets or humans.

How to Identify

Separated from 'Mount Hood' by the 2–3 pendant flowers per stem (versus single upright flower per stem on 'Mount Hood'), by the smaller flower size (2–2.5 inches versus 4–4.5 inches for 'Mount Hood'), and by the short reflexed cup (versus the long trumpet-length cup on 'Mount Hood'). Separated from N. poeticus var. recurvus by the pendant flower posture (versus the horizontal posture of N. poeticus), by the short cup without the red cup-margin of N. poeticus, and by the multiple flowers per stem (versus the single flower per stem on N. poeticus). Separated from 'Jack Snipe' by the pure white flower color (versus the bicolored white-and-yellow flowers of 'Jack Snipe') and by the pendant posture (versus the nodding posture of 'Jack Snipe'). The pure white pendant 2-to-3-flowered stems with reflexed cups identify the cultivar as a Triandrus hybrid.

Appearance

Size & Dimensions

Height1'2" - 1'4"

Width/Spread3" - 4"

Colors

Flower Colors

white

Foliage Colors

green

Fall Foliage Colors

no change

Bloom Information

Bloom Period

~3 weeks

Spring

Pure white pendant flowers 2–2.5 inches (5–6 cm) across open 2–3 per stem in April through May across the mid-to-late Narcissus season. Each flower carries a short reflexed cup. Flowers release sweet fragrance across the active bloom window. Fresh bloom duration runs 2–3 weeks.

Detailed Descriptions

Flower Description

Pure white; 2-3 pendant flowers per stem; short reflexed cup; 2-2.5 inches; April-May

Foliage Description

Gray-green; narrow strap-shaped 8-12 inches; basal

Growing Conditions

Sun Requirements

SunFull Sun SunPartial Shade

Requires 4-10 hours of direct sunlight daily

• Full Sun: 6+ hours of direct sunlight

• Partial Shade: 3-6 hours of direct sunlight

• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range6.0 - 7.0 (Neutral)

3579

Soil Types

loam sand silt

Drainagewell drained

Water & Climate

Water Needs

Medium

Frost Tolerance

hardy

Drought Tolerance

Drought tolerant when established

Care & Maintenance

Care Guide

Plant bulbs 5–6 inches (13–15 cm) deep in full sun to partial shade in well-drained soil (pH 6.0–7.0) in autumn. Hardy to zone 3 (−40°F / −40°C). Well-drained soil is required—wet conditions cause bulb rot and reduce flowering in subsequent seasons. The cultivar naturalizes well in woodland and perennial border settings where undisturbed positions support long-term colony development. Foliage is allowed to yellow naturally for at least 6 weeks after bloom so the bulb can replenish reserves. Bulbs are divided every 5–8 years when clumps run congested enough to thin flowering.

Pruning

Foliage is allowed to yellow naturally across 6 or more weeks after bloom so the bulb can replenish energy reserves. Spent flower stems are deadheaded to prevent seed-set that would redirect bulb energy. Yellowed foliage is removed when the leaves detach easily from the bulb with light tension.

Pruning Schedule

summer