One layer of petals surrounding prominent central cluster of stamens (in which odd petaloids may appear).
an example Tama-No-Ura
SEMI-DOUBLE
Two or more layers of petals surrounding usually prominent central cluster of stamens (in which odd petaloids may appear).
an example Great Eastern
DOUBLE
Large outer petals surrounding distinct central crown, cushion or cluster of bunched petals or petaloids (Waratah form).
an example Elegans Champagne
INFORMAL DOUBLE
Double bloom comprising several layers of petals mostly twisted, irregular or confused and mostly obscuring stamens.
an example D. Herzilia De Freitas Magalhaes
FORMAL DOUBLE
Of regular form - many layers of petals arranged symetrically to bud centre. Formal doubles are not suitable for salt laden winds in coastal positions.
an example Prince Frederick William
Bloom Colour variation where mentioned (e.g. "bright to deep red") allows for varying soils, localities and temperature changes during the flowering period.
Dixie Knight
Japonica
SEMI-SHADE SHADE POTS COASTAL
Large INFORMAL DOUBLE. Brilliant deep red. Fast bushy growth. Late May to mid-September.