I would try it out at rates from 1/2, going up to 3 oz per gallon. But, there has to be a reason why it is not on the label. Most likely because it outright killed or defoliated the plant. Same is true of the jasmine. Cutless G is much safer. Wish the sprayable formulation was labeled for use on landscape ornamentals. It is labeled for plants in greenhouse and nursery production.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738