Marketing is Math: The ROAS Formula for Landscape Business Growth

When it comes to growing your landscape business, marketing shouldn’t be guesswork; it should be a math equation. As landscape professionals, we’re used to measuring, calculating, and being precise. Why should your marketing be any different?

I’ve just returned from speaking at the Spring Fling in Denver (after a 24-hour airport adventure I wouldn’t wish on anyone). My conversations with landscape professionals reinforced something I’ve been saying for years: understanding the numbers behind your marketing is the difference between throwing money away and making strategic investments that grow your business.

Today, I want to break down one of the most essential formulas in marketing: ROAS, or Return on Ad Spend. If you’ve been frustrated with marketing that doesn’t deliver results or are unsure how much you should be investing, this is for you.

What is ROAS?

ROAS (Return on Ad Spend) is a simple yet powerful formula:

ROAS = Revenue Generated from Ads ÷ Total Ad Spend

In practical terms, if your lawn care business spends $500 on Google or Facebook ads and generates $2,500 in new business, your ROAS is 5x. For every dollar you put into your ads, you’re pulling $5 out.

Think about that as an investment. There aren’t many places to put money and get a 5x return. A 5-6x ROAS is generally considered suitable for most ad campaigns, but as you’ll see, we can do much better in the landscape industry.

Real-World Case Study: The Math in Action

Let me share some actual numbers from one of our clients. This isn’t financial advice—just a real example of what’s possible when you understand the math.

Here’s what happened over a recent period:

• Ad spend: $3,800
• Leads generated: 142
• Conversion rate: 30%
• Average job value: $6,000
• Profit margin: 20%

Let’s do the math. With a 30% conversion rate on 142 leads, they closed approximately 42 new customers. At $6,000 per job, that’s $255,600 in total revenue from a $3,800 investment.

What does this mean for ROAS? $255,600 ÷ $3,800 = $67.26 ROAS

That’s right—every dollar spent on ads generated over $67 in revenue. If we calculate based on their 20% profit margin, they still made $13.45 in net profit for every dollar spent on marketing.

How to Improve Your ROAS

What happens if we make minor improvements to these numbers? Let’s see:

If we increase the conversion rate by just 10% (from 30% to 40%) through better ad targeting and improved sales processes, the numbers change dramatically:

• 142 leads at 40% conversion = 57 customers
• 57 customers at $6,000 per job = $340,000 revenue
• At a 20% margin, that’s $68,000 in profit
• New ROAS: $89.47

Minor improvements in conversion rate, average ticket size, or profit margin can exponentially affect your bottom line. This is why knowing your numbers is so critical.

The 90-Day Commitment

Many agencies won’t tell you this: marketing requires patience. Nothing will be a home run in the first week.

We live in an “instant results” society. TikTok, Amazon, and lead services like HomeAdvisor have conditioned us to expect immediate returns. But sustainable marketing doesn’t work that way.

If you’re going to run Facebook or Google ads, commit to at least 90 days. The first month involves testing, the second month involves optimizing, and the third is when you start seeing consistent results.

HomeAdvisor and Angi can deliver leads instantly because they’ve been spending marketing dollars 24/7/365 for years. They never turn it off. The goal is to build a lead generation machine that works just as consistently, but you need to invest the time and money to get there.

Marketing Budget Calculator

Let’s break down what you should be spending to hit your revenue goals.

For a $100,000 annual revenue goal in lawn care:

• Monthly revenue target: $8,333
• Average ticket: $200 per month
• Customers needed: 42 monthly customers
• At a 20% close rate, you need 208 leads per month
• If your cost per lead is $35, you should spend $7,290 per month on marketing

For a $1,000,000 annual revenue goal in landscape construction:

• Monthly revenue target: $83,333
• Average ticket: $6,000 per project
• Customers needed: 14 monthly customers
• At a 20% close rate, you need 69 leads per month
• If your cost per lead is $50, you should spend $3,472 per month on marketing

If you spend $500 on Facebook ads and expect to make a million dollars, the math simply doesn’t work. Marketing is an investment, not an expense.

The Landscape SEO Difference: ROI vs. Lead Volume

What sets us apart from other agencies is that we don’t obsess over vanity metrics like impressions, traffic, or even lead count alone.

Many marketing agencies will show you impressive-looking reports with charts going up and to the right—more visitors, clicks, and impressions! But what’s the point if those metrics aren’t translating to revenue?

Here’s what matters to us:

• Qualified leads generated
• Calls received
• Estimates scheduled
• Services closed
• Revenue created

One of our clients recently closed $100,000 in new business with just $1,200 in ad spend during what’s traditionally their slowest month. This wasn’t accidental—it came from understanding their business model, crafting targeted messaging, and continually optimizing campaigns based on actual results.

Another client reported having their busiest “slow season” in company history. Why? Because we focused on what matters: ROI, not just lead volume.

When an agency understands your business at a deep level, they can create marketing that delivers real impact. Anyone can generate leads—we generate profit.

Key Takeaways

1. Marketing should be a math equation, not guesswork. Know your numbers and make decisions based on data.
2. Understand your accurate margins. Revenue is vanity; profit is sanity. Work with an accountant to truly understand your numbers.
3. Invest appropriately. Underspending on marketing is like planting half the necessary seeds and expecting an entire harvest.
4. Be patient and consistent. Marketing is a marathon, not a sprint. Commit to at least 90 days.
5. Focus on ROI, not vanity metrics. What matters is money in the bank, not charts that look pretty.

If you don’t know your numbers, consider this your wake-up call. We’re early enough in the season that you can get a handle on this now and set yourself up for success.

Next Steps

Are you ready to look at marketing as a math equation rather than a mysterious black box? Do you want to understand what kind of investment it will take to reach your revenue goals?

Your marketing agency should be having these conversations with you. If they’re not, it might be time to ask why.

I’m offering complimentary strategy calls to help landscape business owners understand their marketing math. Let’s talk about your numbers, what you’re trying to achieve, and what it will take to get there.

No guesswork. No empty promises. Just math that makes sense and a plan to help you grow.