Roses (commercial) (Code #890)
Soil Test Rating
All Soils
Potassium

Low K

0-150 lbs/A

Medium K

151-250 lbs/A

High K

251-450 lbs/A

Very High K

450+ lbs/A

PhosphorusSee Comments

Low P

0-50 lbs/A

893893894894

Medium P

51-100 lbs/A

893893894894

High P

101-200 lbs/A

895895196196

Very High P

200+ lbs/A

895895196196

Recommendations:

Recommended pH:6.0 to 7.0. If the pH is less than 6.0, see Lime Table A and the soil depth adjustment table that immediately follows the lime tables.

If pH is greater than 7.2, apply 5 pounds aluminum sulfate per 100 square feet (5 teaspoons per square foot) to reduce soil pH. Mix thoroughly with soil. Retest in one month.

Magnesium:

If soil test Mg level is low and lime is recommended, use dolomitic limestone.

Coastal PlainLow: 0 - 60 lbs/acre Medium: 61 - 120 lbs/acre High: >120 lbs/acre
Piedmont Low: 0 - 120 lbs/acre Medium: 121 - 240 lbs/acre High: >240 lbs/acre

Comments:

Fifty pounds of limestone per 1000 square feet is equivalent to 5 pounds (6½ cups) per 100 square feet. (If lime recommendation is greater than 50 pounds per 1000 square feet, increase the per cup rate proportionately.)

196.

Per plant, extending out 18 inches from the trunk, evenly broadcast 2 tablespoons of 21-0-0, or 1 rounded tablespoon of 34-0-0, or 2 teaspoons of 46-0-0 fertilizer in March and continue each month through early September. If this is not available substitute a 16-4-8 or 12-4-8 analysis at the same rate. For young plants less than 18 inches in height reduce the rate by half. For large plants 5 feet and over, double the rate. It is not necessary to remove the mulch before applying the fertilizer. Brush or rinse any fertilizer from the leaves and stems. Nitrogen fertilizer is most efficiently used and poses less risk of environmental contamination if applied to dry soil and watered into the soil the same day.

893.

Per plant, extending out to 18 inches from the trunk, evenly broadcast 1/4 cup of 16-4-8 or 12-4-8 analysis fertilizer per month from March until early September. Reduce the rate by half for young bushes less than 18 inches in height. It is not necessary to remove the mulch before applying the fertilizer. Brush or rinse any fertilizer from the leaves and stems. If a rose special fertilizer is used, follow manufacturer's recommendation for application rate.

894.

Per plant, extending out to 18 inches from the trunk, evenly broadcast 2 tablespoons of 20% superphosphate in March. After one month apply 1/4 cup 16-4-8 or 12-4-8 each month until early September. Reduce the rate by half for young bushes less than 18 inches in height. Double the rate for large bushes 5 feet or above in height. It is not necessary to remove the mulch before applying the fertilizer. Brush or rinse any fertilizer from the leaves and stems. If a rose special fertilizer is used, follow manufacturer's recommendation for application rate.

895.

Per plant, extending out 18 inches from the trunk, evenly broadcast 1/4 cup of a 15-0-15 fertilizer in March and continue each month through early September. If this is not available substitute a 16-4-8 or 12-4-8 analysis at the same rate. For young plants less than 18 inches in height reduce the rate by half. For large plants 5 feet and over, double the rate. It is not necessary to remove the mulch before applying the fertilizer. Brush or rinse any fertilizer from the leaves and stems. If a rose special fertilizer is used, follow manufacturer's recommendation for application rate.