Perennial plants (Woolton L25)

I've got 8 plant pots of yellow perennial plants to give away.
I dont know the name of the plants but they are very easy to grow, they are reliable and spread easily to fill a space. The bees love the yellow flowers so that's always a bonus. The plants will eventually grow to 5 or 6 feet so good for back of borders.
The plants Im giving away have been grown over the summer from cuttings taken in the spring and are about 12 to 18 inches tall . Now would be an ideal time to plant them while the soil is still warm.
NB THE LAST PHOTO SHOWS HOW THE PLANTS WILL LOOK IN A COUPLE OF YEARS.