NC State Extension

Dianthus ‘Amazon Neon Duo’

Dianthus 'Amazon Neon Duo'

Dianthus 'Amazon Neon Duo'

Trial: Annual

Years Trialed: 2002

Good Qualities:

Vivid colors (10); Large heads (6); Long vase life (3); Strong stems (2); Incredibly vigorous plant, beautiful lustrous dark green foliage; Gorgeous in arrangements; Excellent stem quality and length – Length was particularly impressive, ‘Sweet Williams’ are usually very short for me; Flower first year, long bloom period, good secondary flowering; Strong stems – Started cutting way after all other dianthus was done – Nobody else had any; Amazing because this plant grew tall in the heat (zone 6b) – Grows quickly; This was the nicest dianthus that blooms the first season I have ever seen, long meaty stems, (sweet william type); Good in mixed bouquets and blooms first summer from February planting in greenhouse; Began blooming in late summer (Zone 5) and were a lovely addition to the fall colors of orange and golden yellow – Nice light fragrance; Able to tolerate hot weather; Good stem length.


Too short (3); Inconsistent stem length (2); I was shocked by how well this cultivar performed – It was unbelievable – I was even more shocked by the hesitancy of my customers to buy it – I haven’t figured that out yet; The colors were so strong that they were difficult to combine with other flowers we grow for mixed bouquets; Only 3 stems were florist quality, the rest were side stems only good for bouquets – It would of been nice to have some edging around each petal in a different color; Branching too near top; I was disappointed they were not received better by the floral market (We’ve always noticed this with out of season sweet williams) – They sold though and regardless they are wonderful cuts; Other cut flowers and plant growers wanted to know where to get seed – exceptional; Some of the side shoots were too short for regular cut so used them in petite nosegays which customers seem to love – Some flower heads were full of florets, other had only a few – Plant developed black spots in October.


Editor note: See the Postharvest Report in this issue for vase life and handling information. Best annual dianthus grown at our farm; I didn’t start cutting until 8/12 (Zone 5)- Isn’t this very late for dianthus? – But it made great bunches and bouquets – I would grow again, if it always bloomed so late; I love it – Will grow in succession next year; Similar to other dianthus – A great new addition to the cut flower market, last very well cut – I think retailers will love it once they use it and see how well it last; The harvest window was very long, 3+ months – The second and third plantings gave more and longer stems – The final round had shorter stems; Who names these things?; Am anxious to see if this comes back next year – Even in the bud stage, the flower heads have great textural appeal; Cold weather turns the foliage a stunning burgundy; Will definitely grow again; A winner!.

Trial Data

Dianthus ‘Amazon Neon Duo’
Yield (stems/plant) Stem Length (inches) Market Appreciation Rating – Wholesale (1) Market Appreciation Rating – Retail (1) Market Appreciation Rating – Consumer (1) Repeat Again Rating (2) Ease of Cultivation Rating (2) Average Spacing (in2)
Average 7.0 17.4 4.3 4.5 4.2 4.6 4.6 140
Range of Responses 1-15 8-28 4-5 4-5 3-5 3-5 3-5 36-280

(1) 1 to 5 scale, with 5 being the best. Market ratings are based on sales to wholesalers, retailers, or final consumers direct.


PanAmerican Seed

P.O. Box 438

West Chicago, IL 60186

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