pH Targets

Daylilies at of how much nutrition is present not much is going to be available to your plants unless your PH is in the 6.2-6.8 range.

St. Augustinegrass Lawns per ACES – soil pH between the desired range of 6.0 to 7.0

Azaleas by the Azalea Society of Americathe range needed by azaleas pH between a low of 4.5 and a high of 6.0

Crape myrtle grows best in an acid to slightly acid soil ranging from 5.5 to 6.5 on the pH scale. Wilson Brothers Gardens.

CamelliasCamellias generally prefer acid soils with ph readings from 5.5 to 6.8. Per The American Camellia Society.

Roses by the American Rose Societysoil Ph must be adjusted to the 6.0 – 7.0 range.

Hydrangeas from Plant Addicts:

  • For Pink Blooms – Shoot for a pH of about 6.0 to 6.2 (If it goes above 6.4 hydrangeas may experience an iron deficiency).
  • For Blue BLooms – To make the aluminum available to the plant, the pH of the soil should be low (5.2-5.5). Adding aluminum sulfate will tend to lower the pH of the soil. 

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