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GIANT-FLOWERED SEMI-CACTUS DAHLIAS

Semi-Cactus dahlias have fully double blooms; the ray florets are usually pointed and revolute for more than 25% and less than 65% of their length and broad at the base and either straight or incurving.

Giant-Flowered Semi-Cactus Dahlias have blooms usually over 10" (254mm) in diameter

RoseJupiter.jpg (12153 bytes)

Rose Jupiter, giant semi-cactus

Large Semi-Cactus  Medium Semi-Cactus  Small Semi-Cactus  Miniature Semi-Cactus

The following list includes the varieties listed in 2025.

variety

subtype

colour

use

intro

raiser

country

height
AC Ben O.-Y.Bls E.G. 2010 greenway USA 0
AC Jeri Y. E.G. 2017 greenway USA 0
Aitara Majesty Y. E. 1999 Tapley Aus 100
Coral Jupiter Pk.Bls E. 1992 120
Daleko Jupiter R.-Y.Bls E. 1979 krzywycki UK 140
Debra Ann Craven R. E. 1988 craven UK
Evening Mail Y. E. 1981 Brookes UK 135
Inca Dambuster W. E. 1975 Brookes UK 150
Inland Dynasty Y. E. 1992 Anselmo USA 130
Irene's Pride O. E. 1990 szalkowski USA 120
Janal Amy Y. E.G. 1999 jones,a UK 120
Joyce Green Pk.Bls E.G. 1981 gower UK 150
Le Vonne Splinter Br.Bls. E. 1978 Comstock USA 120
Mingus Whitney W. E. 1997 mingus USA 120
Pink Jupiter Pk.Bls E. 1981 hardham UK 120
Rose Jupiter Pk.-W.Bls E. 1986 UK 120
Ryedale Rebecca O.Bls E. 1995 smith,don UK
Sherwood Monarch Br. E. 1991 marshall UK

 

Subtype

(Lil.) indicates a lilliput dahlia, which is usually less than 15 inches (45cms) in height and with flowers not normally bigger than 2 inch diameter.

(Dw.B.) indicates a dwarf bedding variety which does not normally exceed 24 inches (60cms) in height

Use

C. indicates suitable as a cut flower, ie it has long wiry stems.

E. indictes the variety is suitable for exhibition purposes.

G. indictes suitable for general garden use.

P. indicates the variety is suitable for growing in pots or patio containers.

Some examples of Giant Semi-Cactus

joycegreen.jpg (72622 bytes)

Joyce Green

 KenoraClyde.jpg (7244 bytes)

Kenora Clyde

 KenoraSuperb.jpg (12995 bytes)

Kenora Superb

Daleko Jupiter

  

LaVonneSplinter.jpg (9486 bytes)

LaVonne Splinter

Janal Amy

Inca Dambuster

  

Westerton Jacko

Large Semi-Cactus  Medium Semi-Cactus  Small Semi-Cactus  Miniature Semi-Cactus

Last updated February 08, 2026

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dwlogo.gif (8261 bytes)     Last updated: February 08, 2026.