Large-Cupped Daffodil (Narcissus 'Professor Einstein') in the Daffodils Database

Common names:
Give a thumbs up Large-Cupped Daffodil
Give a thumbs up Daffodil

Data specific to Daffodils (Edit)
Division: Division 2 - Large-Cupped
Color: Perianth (Petals): White
Color: Corona (Cups): Red
Description: Flower is rounded with white petals that overlap half and a disk shaped cup that is scarlet-red. Good contrast of color.
Bloom season: ML - Mid to Late Spring
Height classification: Standard (12.8" to 26.6")
Special Classes: ADS Classics
Hybridizer: J.W.A. Lefeber
Year of registration: Yes. 1st flowering pre 1946
Country of Origin: the Netherlands
Origin of name: scientist
Awards: Award of Merit
First Class Certificate
Links: DaffSeek - Daffodil Database
RHS - Daffodil Register

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 8b
Plant Height: 12-26 inches
Leaves: Spring ephemeral
Flowers: Showy
Other: should force well
Flower Color: Red
White
Flower Time: Spring
Late spring or early summer
Other: Forcible
Underground structures: Bulb
Uses: Provides winter interest
Erosion control
Groundcover
Cut Flower
Will Naturalize
Wildlife Attractant: Bees
Butterflies
Resistances: Deer Resistant
Gophers/Voles
Rabbit Resistant
Squirrels
Toxicity: Leaves are poisonous
Roots are poisonous
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Offsets
Bulbs
Pollinators: Moths and Butterflies
Flies
Bees
Containers: Suitable in 1 gallon
Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: Goes Dormant
Awards and Recognitions: Other: FCC 1957 and Award of Merit 1955
Child plants: 3 child plants

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The All Things Plants Top 25 DaffodilsThe All Things Plants Top 25 Daffodils
September 10, 2014

Which daffodils should you grow? With more than 26,000 cultivars to choose from, it seems a daunting task. Let us help you by showcasing the most popular daffodils in the ATP database!

(Full article2 comments)
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Comments:
Posted by gemini_sage (Winchester, KY - Zone 6a) on Aug 23, 2014 4:29 AM

I grew 'Professor Einstein' for 10+ years before finally removing it; no matter what sun exposure I provided for it, the weak stems would never hold the blooms upright. The first rain after the flowers opened always bent them flat to the ground.

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Posted by critterologist (Frederick, MD - Zone 6b) on Apr 8, 2012 11:01 PM

This variety caught our attention from across the daffodil pavilion at the Keukenhoff in 2009. Large blooms have good substance and are long lasting in the vase. I love including this one in bouquets, as the bright orange centers just show off really well against the usual daffodil white and yellow tones.

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Posted by jmorth (central Illinois) on Oct 7, 2013 9:50 AM

Description by the RHS -'Fl. rounded; perianth segments very broad, blunt or truncate, prominently mucronate, pure white, more or less spreading, glistening and of thick substance, with margins sometimes incurling and broad midrib showing, overlapping half; corona very broad disc-shaped, closely ribbed, scarlet-red, with rim notched in places and minutely crenate. Mid-season. 2n=28.'
‘The Royal Horticultural Society Horticultural Database’, available at www.rhs.org.uk
Multiple award winning classic.
Seed and pollen fertile; used twice as seed parent and 4 times as pollen parent. A listing of descendants available at http://daffseek.org/query/Desc... (DaffSeek 10-7-13)

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Discussion Threads about this plant
Thread Title Last Reply Replies
Daff Dilemma by HamiltonSquare Mar 13, 2018 1:06 PM 10
Mission Impossible by vossner May 29, 2011 12:14 AM 26

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