Commercially available

 

20 favorite votes.  

Medium yellow Tea.
Registration name: Isabella Sprunt

Discovered by Rev. James M. Sprunt (United States, 1855).
Introduced in United States by Isaac Buchanan in 1865 as 'Isabella Sprunt'.
Introduced in Belgium by Verschaffelt in 1867 as 'Isabella Sprunt'.

Tea.  

Yellow.  Strong fragrance.  Large, semi-double (9-16 petals) bloom form.  Blooms in flushes throughout the season.  

Height of 2' to 6' (60 to 185 cm).  Width of 2' to 5' (60 to 150 cm).

USDA zone 5b and warmer.  

Diploid

Different opinions on Breeder - see References.