Yard pH Tests and Actions

Yard

9/29/2020 – Took pH readings with the Kelsey meter in the following locations. Target pH for St. Augustine Grass is 6.0 – 6.5.

LocationReadingAction
Front yard – Grass grows well. Make half of the full 1 point adjustment and retest.>½ pt
NW Corner5.5
SW Corner5.2
NE Corner5.0
SE Corner6.4, 6.0, 5.2
EW Line – W5.6
EW Line @ Door4.9
EW Line @ E wall5.1
EW Line – E5
Back Yard – Grass grows well. Make half of the full 1 point adjustment and retest.>½ pt
SE Corner5.6
W at Gardenias5.6
NE Corner
near pecans and azaleas
5.4
Citrus Grove – Grass struggles. Citrus will benefit.>½ pt
NE Corner – 10′ from trees6.0
SE Corner – 10′ from trees5.4
S Citrus tree at driveway5.9
SW Corner-Btwn Peach & Orange5.8
NW Corner6.5
W Lemon with many lemons
~ 2 ft from trunk
N 6.6
S 6.2
At original Hamlin Orange6.2
Old Oak>½ pt
SW Corner5.4
SE Corner6.2
NE Corner5.9
NW Corner at the corner of the deck5.6

Best pH Ranges

  • Pear target is 6.0 – 6.5
  • Satsuma is 6.5 – 7.0
  • Peach target is 6.0 – 6.5
  • Meyer Lemon is 5.5 – 6.5
  • Live Oak is 6.0 – 6.5

From Baker Lime – Here, approximately, is how much limestone you’ll need to raise 1.0 pH level for every 1,000 square feet for the different soil types: Sand: 25 pounds. Loam: 75 pounds.

For our Sandy Loam soil apply 50 lbs. per 1,000 SF. For the yard to the old pond fence and back to the church azaleas there is 1.3 ac or 56,000 SF. So, 50 x 56k = 2,800 lbs of lime

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