Abstract:
Soil acidification sometimes is necessary for optimum plant growth
west of the Cascade Mountain Range. Commercial producers of
blueberries, azaleas, rhododendrons, and other ornamentals may
need to reduce soil pH for optimum production.
Soil acidification is best performed prior to planting; it is much
more difficult in established plantings. No routine soil test is
available to determine soil acidification amendment rates. This
publication is intended to provide guidelines for acidification of
commercial fields. It is not intended for use with container-grown ornamentals.
