RETAIL NURSERIES, LAWN AND GARDEN SUPPLY STORES (SIC 526)

Establishments primarily engaged in selling trees, shrubs, other
plants, seeds, bulbs, mulches, soil conditioners, fertilizers,
pesticides, garden tools, and other garden supplies to the general
public. These establishments primarily sell products purchased from
others, but may sell some plants which they grow themselves. 
Establishments primarily engaged in growing trees, shrubs, other
plants, seeds, and bulbs are classified in SIC major group 01, and
those growing Christmas trees are classified in SIC major group 08.