Re: Hello from Zone 9A!
Actually, your plant looks good. As already stated the pot is tooo small. Because the pot is small for the tree indicated the plant is growing and the bottom leaves turning brown and dying is normal. So don't let the bottom brown leaves scare/bother you. There are new leaves & 'cigar' leaf showing. ... Re-pot with a pot about 4 x's bigger (5 gal ???) and plenty of compost & mulch on top.
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