Seasonal Lawn Care Guide

A healthy, beautiful lawn is within reach thanks to the experts at A.M. Leonard. Below you will find an easy-to-follow seasonal lawn care guide that will help you find the right lawn care products for each season of the year. You will find helpful definitions, an informational product matrix, and much more.

Shop Grass Fertilizer

A.M. Leonard offers five specialized fertilizers that will take care of your seasonal needs: Early Spring, Late Spring, Early Summer, and Fall. Note: As with all products, you should follow the label guidelines provided by the manufacturer. Seasonal timings may vary by region due to weather or by which plants you are trying to control. Please refer to the label for best results.

Lawn Care Definitions

  • Barricade – Barricade is a pre-emergent herbicide with active ingredient Prodiamine. Prodiamine is good for controlling annual season grasses, some broadleaf weeds, and much more! Pre-emergent control is the prevention of seed germination and/or seedling emergence.
  • Iron – Iron is an important component of plant enzymes and proteins involved in respiration, nitrogen metabolism, and chlorophyll synthesis. Iron fertilizer is applied by turfgrass managers to enhance turf color without stimulating excessive leaf growth. Iron applications can produce darker green turf even when levels are adequate in plant tissues before applications are made.
  • Merit® – Merit® is an insecticide using the active ingredient imidacloprid, good for controlling many root feeding insects, especially those nasty grubs.
  • Nutri-sphere-N® – Nutri-sphere-N® is a proprietary nitrogen management tool that has been shown to prolong desired turf color up to eight weeks. It holds the nitrogen in the ammoniacal stage longer, and that makes it more readily available.
  • Trimec – Trimec is a post-emergent herbicide with active ingredients 2,4-D Mecoprop-p and Dicamba, good for controlling broadleaf weeds. Post-emergent control is controlling (killing) a weed after the seed germinates, or after it has emerged.

Below, we have a quick seasonal lawn care guide to help you find the right solution for lawn care by season. Since weather conditions vary so greatly across the country, we chose to relate product usage to seasons and not specific time frames. Simply choose the grass fertilizer for the season you are in and lush, green success for your lawn will be right around the corner. (Of course, do not hesitate to call us at 1-800-543-8955 if you have questions; or call your account manager at 1-888-558-8665.)

Application Time

Early Spring
Early Spring
Late Spring
Early Summer
Fall
Fall

Plan

Seeding
Stage 1
Stage 2
Stage 3
Seeding
Stage 4

Product Classification

Starter Fertilizer

18-24-12

Fertilizer + Pre E

19-0-6

Fertilizer + Post E

22-0-4

Fertilizer + Insect

21-0-4

Starter Fertilizer

18-24-12

Fertilizer + Iron

25-0-3

 

Active Ingredient

 

 

Barricade

 

2,4-D Mecoprop-p
  Dicamba

 

Merit

 

 

2% Iron

 

Control*

 

Crabgrass, Chickweed, Carpet Weed, Mouseear, Henbit and much more!

Dandelion, Dock, Chickweed, Pigweed, Thistle, clover and much more!

Japanese Beetle, Blue Grass Weevil, Larvae of White Grubs, Mole Crickets, and More!

 

Contains micronutrient Iron (Fe) for extra greening and to help prevent iron deficiency.

 

Nutrisphere-N®

 

YES

 

YES

 

YES

 

YES

 

YES

 

YES

Rate Coverage:
Light
Low
Med
High

 


12,500 sq ft

 

12,800 sq ft
11,100 sq ft
8,300 sq ft

 

12,500 sq ft
10,000 sq ft

 

14,200 sq ft

11,100 sq ft

 


12,500 sq ft

 

16,600 sq ft
12,500 sq ft
10,000 sq ft
8,300 sq ft

Bag Size:

50 lb

50 lb

40 lb

50 lb

50 lb

50 lb

*Note: Herbicide blends control a larger list than illustrated.