Yea, I'd go with what the other guy posted or you might also wanna try a garden supplier. Also, I recommend you call milbergers garden. They are located in San Antonio off of 1604 near ih35. Look them up, I don't know their number. But I do know they specialize in trees as well as gardening needs.
Im not sure, might need to call and speak with a rep. I would recommend tractor supply or feed store. Sorry I couldn't answer your question.
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