Fertilizer Schedule for USDA Zone 9
USDA Zone 9 covers areas with minimum winter temperatures of 20°F to 30°F. The growing season runs from February through December, with fertilizer applications from February through November.
Zone 9 Quick Facts
Temperature Range20°F to 30°F
Average Last FrostFebruary 15
Average First FrostDecember 1
Fertilizer SeasonFebruary to November
Lawn Fertilizer Schedule for Zone 9
Zone 9 lawns receive their first application in February and their last by November. Cool-season grasses (fescue, bluegrass) and warm-season grasses (bermuda, zoysia) follow different NPK ratios at each application.
| Month | Action | NPK |
|---|---|---|
| February | Early spring fertilizer as grass exits dormancy | 15N 0P 15K N 15% Nitrogen: leaf and stem growth P 0% Phosphorus: roots and flowers K 15% Potassium: health and disease resistance Learn more about NPK |
| April | Spring nitrogen application | 20N 0P 5K N 20% Nitrogen: leaf and stem growth P 0% Phosphorus: roots and flowers K 5% Potassium: health and disease resistance Learn more about NPK |
| June | Summer feeding | 15N 0P 10K N 15% Nitrogen: leaf and stem growth P 0% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK |
| August | Late summer application | 15N 0P 10K N 15% Nitrogen: leaf and stem growth P 0% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK |
| October | Fall fertilizer for root growth | 5N 10P 15K N 5% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 15% Potassium: health and disease resistance Learn more about NPK |
Garden Fertilizer Schedule for Zone 9
With a last frost around February 15 and first frost around December 1, zone 9 gardens have a 11-month window for fertilizer applications.
| Month | Action | NPK |
|---|---|---|
| February | Spring garden prep with balanced fertilizer | 10N 10P 10K N 10% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK |
| March | Feed spring plantings | 5N 10P 5K N 5% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 5% Potassium: health and disease resistance Learn more about NPK |
| May | Side-dress summer crops | 5N 10P 10K N 5% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK |
| July | Mid-summer feeding | 5N 10P 10K N 5% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK |
| September | Fall planting fertilizer | 10N 10P 10K N 10% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK |
| November | Winter garden feeding | 5N 5P 5K N 5% Nitrogen: leaf and stem growth P 5% Phosphorus: roots and flowers K 5% Potassium: health and disease resistance Learn more about NPK |
States in Zone 9
6 states contain areas classified as zone 9. Your specific location within a state may fall in a different zone based on elevation and proximity to water.
FloridaTexasLouisianaArizonaCaliforniaHawaii