Fruit Trees & Hardpan
I didn't find any references on the forum to hardpan. The question is how do you deal with hardpan?
I just finished planting 2 jap. plums and 4 peach tress in 1.5-2 feet of topsoil over a layer of hardpan. The particular hardpan I have consists of a layer of small to large rocks and clay. On each tree I dug a hole 2 feet deep and fractured the hardpan with 3 foot tent spike with sledge hammer in 5 different spots deep inside the hole. I then removed the spike and filled the void were the spike was with top soil. A large excavation job a couple lots away showed a sandy subsoil beneath the hardpan.
Any one have any thoughts on my approach? I've read online references to people blasting hardpan to plant fruit trees.