I just bought a 5 gal Eureka lemon tree. I prepared a large pot (the size large trees come in) with bagged garden soil, compost, and perlite. I live next to a hammock with large pine trees with lots of mulch underneath. I incorporated that light mulch into the mixture. Since then I heard that the mulch under the pine trees may be bad for growing plants in, as grass doesnÂt grow under pine trees. I also heard that pine mulch is a great mulch for acid plants as lemon trees, but is it bad to have it mixed into the potting mix? Please help