Fertilizer

Having an effective fertilization program is essential to both soil and plant health. We also understand that planning a fertilizer program can be difficult with so many choices available. We highly recommend that you call or stop by the Grieder Garden Center with any questions about what, when, or how to start a fertilizer program.

The first -10- stands for Nitrogen (N), which promotes color.

The second -10- stands for phosphorous (P), which promotes root development.

The third -10- stands for potassium (K), which promotes vigor and fruiting.

Again, when applying fertilizer follow the label instructions. Too much or too little fertilizer can have a negative or little effect on the plant or soil.

We have the following fertilizer ratios available:

Lawn: 15 - 5 - 10, 10 - 18 -10
Annuals: 9 - 59 - 8, 3 - 5- 7
Perennials: 4 - 6 - 6, 10 - 10 - 10
Trees & Shrubs: 9 - 5 - 4, 16 - 10 - 9

Tree and Shrub Fertilization Guidelines

• Best time to fertilize for maximum uptake into the plant is early summer and early fall.
• 3 lbs. Nitrogen per 1000 sq. feet
• Use fertilizer with a 3 - 1- 2 ratio, don't skimp
• Inject into soil for best results or liquid drench 4" to 6" deep
• For mulched areas, add an additional 1 lb. Nitrogen to offset Nitrogen loss from decomposition.
• Newly transplanted or very mature plants are the least likely to respond.
• Do not fertilize plants under stress, they will spend energy growing not defending themselves from disease, insects, or environmental stress.

Annual and Perennial Fertilization Guidelines

• Fertilize full sun annuals at time of planting or when growth begins in spring.
• 2.5 to 3 lbs. Nitrogen per 1000 sq. feet. (shade plants at 1/2 that rate)
• Always fertilize at time of planting, get off to a good start.
• Use a 1 - 1 - 1 ratio.
• Feed early and heavy, early Phosphorous deficiency is common.
• Follow up fertilization 1 to 1.5 lbs. Nitrogen per 1000 sq. feet.