We have two of those which Mrs. NoC planted.
Most of the old roses (before the breeders got busy) were single bloomtypes such as in the previous photo.
On the subject of shovels, one of those GI trenching tools works especially if you're not trying to spade a garden, and is collapsible..

Have got Two of those shovels.
Easily stowed in the car.
The rivets need replacing fairly quickly,but it was getting abused.
Hmmmm. If I get into Vegas to the Army Surplus Store, I will look foe the trencher.
The Rose of Sharon is vastly different from the hibiscus. Much smaller and with more colors.