Philippines 
where can you find the oldest mustard tree in the world
13 Sep, 2010
Answers
I'm waiting for the punch line! Phil J
13 Sep, 2010
Until the summers got so ferocious here, I knew of a couple of Ornamental Cabbage plants that were several years old. I'm not sure what you mean by Mustard Tree, Guest.
13 Sep, 2010
Maybe a Salvadora persica? Called toothbrush tree or mustard tree, a popular chewing stick in the Muslim world.
14 Sep, 2010
Previous question
« Why have I got an abundance of sweet pea plants but no flowers?
Mustard doesn't grow on trees, it's an annual.
13 Sep, 2010