Book  (2017)  Page(s) 100.  Includes photo(s).
 
Robert Warren, Queensland.   My Top Australian Bred Roses.
Hello Yellow (before 2001) grows very well here in South East Queensland to about 1.5 metres in the garden bed and with many productive canes.  It obviously does well in other parts of Australia judging by the photos on the "HelpMeFindRoses website, apparently submitted by an Australian photographer. The yellow blooms are semi double and last well in the garden and when cut for vases. It is quite spectacular in the vase section of rose shows, and has been selected as Australian bred rose champion vase on occasions here at Queensland shows.

Magazine  (2016)  Page(s) Vol 38, No. 1.  Includes photo(s).
 
p22. Richard Walsh: Feature Breeder - Eric Welsh.
I also believe Eric’s Hello Yellow should be a Floribunda, not “patio“.

p23... A company on the Central Coast (NSW) seems to produce plants propagated by tissue culture from time to time of 'Chameleon', Hello Yellow and others of the Australian Mini Collection such as 'Eric the Red' and they are sold through chain stores....

Book  (2001)  Page(s) 140.  
 
Len Johnstone. Queensland. ‘Hello Yellow’ bred by Eric Welsh, is a patio type almost single in my garden, good grower and plenty of blooms.