By Pat Kelly One of the most common questions about lawn weed control is simple: how much do I actually need? Buy too little and you run out mid-lawn. Buy too much and you are storing a half-empty bag for years. The 25 lb size of Salacia was designed to solve this — it covers up to 10,000 square feet, which is the average American lawn, in a single application.
This guide breaks down the coverage math, shows you how to measure your lawn, and explains why the 25 lb bag hits the sweet spot for most homeowners.
Why 25 Pounds?
Most granular lawn products come in 10 lb, 25 lb, or 50 lb bags. Each has tradeoffs:
10 lb
Covers ~4,000 sq ft. Most homeowners need two bags. Higher per-pound cost. Runs out before the job is done.
25 lb
Covers up to 10,000 sq ft — the US average lawn. One bag, one application. Manageable carry weight.
50 lb
Covers ~20,000 sq ft. Too much for most lawns. Heavy to carry. Leftover product needs proper storage.
The 25 lb bag was designed to match the lawn most Americans actually have — not too much, not too little. One bag, one application, one season of clean turf.
The Average US Lawn Size
According to the National Association of Landscape Professionals, the median American lawn is approximately 10,000 square feet (about a quarter acre of maintained turf). But lawn size varies significantly by region:
| Region | Typical Lawn Size | Bags Needed |
|---|---|---|
| Northeast (suburban) | 6,000 – 10,000 sq ft | 1 bag |
| Southeast | 8,000 – 14,000 sq ft | 1 – 2 bags |
| Midwest | 10,000 – 20,000 sq ft | 1 – 2 bags |
| West / Southwest | 3,000 – 8,000 sq ft | 1 bag |
| Pacific Northwest | 5,000 – 10,000 sq ft | 1 bag |
For the majority of US homeowners, one 25 lb bag of Salacia is enough for a full lawn application. If your lawn is on the larger side (15,000+ sq ft), a second bag or targeted spot-treatment of weed-heavy zones is the most efficient approach.
Coverage Calculator
Here is the simple math for Salacia coverage at the standard selective rate:
2.5 lb
per 1,000 sq ft (standard rate)
25 lb
÷ 2.5 = 10,000 sq ft covered
1 bag
= 1 average lawn, 1 application
Heavy infestation rate: For lawns with dense weed coverage, the application rate increases to approximately 5 lb per 1,000 sq ft. At this rate, one 25 lb bag covers 5,000 sq ft. If your lawn is 10,000 sq ft with heavy weeds throughout, two bags will be needed. However, heavy infestations are often concentrated in specific zones — treating only those areas at the higher rate while using the standard rate elsewhere keeps you within one bag for most lawns.
How to Measure Your Lawn
You do not need a surveyor. Here are three quick methods, from easiest to most precise:
Google Earth (free, 2 minutes)
Open Google Earth, find your property, and use the polygon measure tool to outline your lawn areas. Exclude the house footprint, driveway, walkways, and garden beds. The tool displays the area in square feet. This is accurate to within 5-10% for most properties.
Tape measure (10 minutes)
Break your lawn into rectangular sections. Measure the length and width of each section in feet, multiply to get the area, then add all sections together. Front yard (50 × 30 = 1,500) + back yard (80 × 60 = 4,800) + side strips (2 × 40 × 8 = 640) = 6,940 sq ft total.
Pace counting (5 minutes, rough estimate)
One average adult pace is about 2.5 feet. Walk the length and width of each lawn section counting paces. Multiply paces × 2.5 to get feet, then length × width for area. Less precise but good enough for product estimation — round up to the nearest 1,000 sq ft for safety.
Selective vs. Non-Selective Rates
Salacia is a selective herbicide — it targets broadleaf weeds while leaving grass unharmed. But the application rate matters. Understanding the difference between selective and non-selective rates helps you use the product correctly and get the most coverage from every bag.
| Application Type | Rate | Coverage per 25 lb | Use When |
|---|---|---|---|
| Selective (standard) | 2.5 lb / 1,000 sq ft | 10,000 sq ft | Weeds mixed in with lawn grass |
| Selective (heavy) | 5 lb / 1,000 sq ft | 5,000 sq ft | Dense weed patches, deep-rooted perennials |
| Non-selective | 10+ lb / 1,000 sq ft | 2,500 sq ft | Total vegetation removal (driveways, paths) |
For most lawn applications, the standard selective rate is all you need. Read more about how selective herbicides work and best practices for timing and application to get the best results from your bag.
Wondering if organic selective herbicide actually delivers results? See the evidence in does organic weed killer work.
Intelligence
Not Sure About Your Situation? Ask Lanaturo Intelligence.
Snap a photo of your weeds, get an instant species ID, check real-time application conditions for your location, and receive a tailored treatment plan.
Ready to Take Back Your Lawn?
Salacia™ is the first OMRI-listed organic herbicide with true selective action — kills weeds, not grass. Choose your lawn size:
One Bag. One Lawn. One Application.
The average American lawn is about 10,000 square feet. One 25 lb bag of Salacia covers exactly that — no guesswork, no leftover waste, no running short halfway through. It is the right amount of the right product for the lawn you actually have.
Pet Friendly — everything else second.
This article is for informational purposes. Always follow product label directions for application rates, timing, and use. Salacia is OMRI certified organic and labeled Pet Friendly.
