Daylilies at http://www.ctdaylily.com/trimmer_fertilizing.html – Regardless 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 America – the 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.
Camellias – Camellias generally prefer acid soils with ph readings from 5.5 to 6.8. Per The American Camellia Society.
Roses by the American Rose Society – soil 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.
