I am looking for a plant to put next to my toddlers football goal. I need it to be hardy (for when the ball misses the goal!) and I also want it to grow to 1 metre rather quickly. I love the look of the Pinus mugo 'Minikin' Dwarf Mountain Pine quite modern looking. But I think it will take too long to grow to 1 metre high. Any other suggestions? BTW, I am a complete newbie gardener (have just bought our first ever house with a garden).