Steve in France

Annie , I had very sand soil in my French garden , I found the best way to improve the soil was to let the Worms and Bacteria do the job. I top mulched with horse manure about three times a year. Top feeding I find best for the plant . It took about two years to get great soil , I do use some high nitrogen lawn fertilizer to help the cellulose material in the mulch break down, I also top dress with Bark Mulch to keep the garden looking good.
Later
Steve

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Always looking for a lost pup