I have a trio of apple trees, but I'm keeping them small - none will be taller than 6-7 feet. Will I have any issues creating guilds underneath them? Most of what I'm reading leads me to believe that fruit tree guilds are larger scale, with a broader tree canopy. I'm inclined to plant dill, comfrey, daffodils, clover, nasturtiums and yarrow around them. I'm very much a beginner, so any advice is appreciated.