Can I plant crops around them?

As you lay out your Orchard keep in mind that you will never want to disk or till under your fruit trees as the roots begin just under the soil and generally match the trees canopy. Consider planting clover as it makes a great choice for your orchard as it is nitrogen fixing and creates a nice symbiotic relationship for your trees. Mowing your clover 3-4 times per year is a great way to maintain your clover plot and keep your fruit tree orchard looking great!