Long-cupped Narcissus, Large-cupped Daffodil 'Saint Patrick's Day'


Family: Amaryllidaceae (am-uh-ril-id-AY-see-ee) (Info)
Genus: Narcissus (nar-SIS-us) (Info)
Cultivar: Saint Patrick's Day
Additional cultivar information:(aka St. Patrick's Day)
Hybridized by Konynenburg-Mark
Registered or introduced: 1964
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Division 2 - Large-cupped


6-12 in. (15-30 cm)


3-6 in. (7-15 cm)

Bloom Time:

Mid Spring


USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade


Parts of plant are poisonous if ingested

Bloom Color:

Pale Yellow

Chartreuse (Yellow-Green)


This plant is resistant to deer

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for cutting

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Suitable for growing in containers


This plant has been said to grow in the following regions:

Loveland, Colorado

Nantucket, Massachusetts

Saint Paul, Minnesota

Newport News, Virginia

Norfolk, Virginia

Gardeners' Notes:


On May 5, 2015, DaylilySLP from Dearborn Heights, MI (Zone 6a) wrote:

(Ice Follies x Binkie)


On Mar 28, 2014, coriaceous from ROSLINDALE, MA wrote:

One of its parents is the extraordinarily popular 'Ice Follies', and like it, 'St Patrick's Day' is said to be a prodigy of vigor. It's a delicately colored reverse bicolor, and great for naturalizing. The lemon yellow color is soft but luminous, and shows up well in the garden. There's only a hint of green, and just on first opening.

It isn't the easiest cultivar to find in commerce, but well worth the trouble.


On Jan 3, 2006, Todd_Boland from St. John's, NL (Zone 5b) wrote:

This is one of my favourite large-cupped daffodils. The blooms are quite large and an unusual primrose-yellow with cream cup. When the flowers first open they are decidedly greenish, hence the cultivar name. But beware, some catalogues show them to be very green which they are not.


On Apr 22, 2005, orange_knickers from Portland, OR (Zone 8b) wrote:

Don't expect the lime green color you see on the packaging. As a new gardener, I was VERY dissapointed! This is a pale yellow Daffodil, in all lights. Cute little pale flower however, very delicate. I forced mine.