Google Ads Negative Keywords: How Many Are Too Many? (2026)

One of the questions I receive from new Google Ads advertisers is: "How many negative keywords can I add without confusing the algorithm?"

In this video, I answered a small business owner who runs a brick-and-mortar flower shop. They had launched their first Google Ads campaign about a week earlier using ChatGPT to help with setup. When they opened the search terms report, they found competitor flower-shop names and searches that did not seem relevant. They also felt the AI-written ads sounded generic.

Their concern was understandable: Should I add negative keywords and improve ad copy now, or leave the campaign alone while Google learns?

My advice is to fix clear problems when you find them, while avoiding unnecessary edits that make results difficult to evaluate. Here is how I would approach the account.

How many negative keywords are too many?

There is no recommended number of negative keywords to add per day or per week. The question is whether each exclusion protects the campaign from an irrelevant search without blocking a potential customer.

Google Ads does have a technical limit of 10,000 negative keywords per campaign and limits on shared negative keyword lists. Those platform limits are different from the practical question of how many terms you should add in one optimization session.

In my experience, negative keyword work is ongoing. You launch a campaign, review real searches, add carefully chosen exclusions, and continue learning from the results.

For a local florist, examples of searches worth reviewing might include:

• "flower shop jobs" — usually job-seeking intent rather than buying flowers.
• "paper flower tutorial" — usually someone looking for a DIY project.
• "artificial flowers wholesale" — potentially irrelevant if the shop sells only fresh arrangements.
• A specific competitor’s shop name — may signal the user wants that business rather than yours.

Do not automatically exclude phrases such as "cheap flowers," "free delivery," or "wholesale" without checking your products, offers, and customer behavior. A seemingly low-value term can still be relevant for a particular business.

Use the search terms report, not a copied list

Before adding negatives, I recommend organizing the search terms into three groups:

1. Clearly irrelevant: searches for jobs, unrelated products, or research that your company cannot serve.
2. Potentially relevant: searches where intent is mixed or too little performance data is available.
3. Strong buying intent: searches that match your products, delivery area, and the action you want customers to take.

Only the first group is an obvious starting point for exclusion. For the second group, investigate before you block traffic; the third group may deserve better ads or more relevant landing pages.

Also pay attention to negative broad, phrase, and exact match. They are not interchangeable. An overly broad negative or a shared list applied across the wrong campaigns can prevent valuable queries from triggering ads.

Google explains the mechanics in its negative keyword guidance and publishes the current account limits.

Should you add competitor flower-shop names as negatives?

The florist in my video had impressions for other stores’ brand searches, even though that was not the intention of the campaign.

Personally, when a small local business has a limited advertising budget, I prefer to start with searches that describe the service or product, not with people looking for a named competitor.

For example, a person searching for "same-day birthday bouquets near me" might be comparing options. Someone searching for a particular shop’s phone number could already have chosen that competitor.

That does not mean competitor campaigns never work. Some advertisers use them deliberately and successfully. But if you are not running a purposeful competitor strategy, and those terms are attracting expensive or low-quality clicks, it can make sense to add those specific competitor names as negatives.

Do not add generic words such as "flowers," "florist," or your city as negative keywords simply because they appear in a competitor’s name. Review the match type and scope carefully.

Can you add negatives and improve ad copy in the same week?

Yes. If the initial ad copy is generic and the search terms show obvious waste, you can address both during the first week. Google Ads does not require advertisers to ignore an obvious issue for seven days.

The practical challenge is measurement: if you change a dozen unrelated settings on the same day, it becomes difficult to tell what improved or hurt performance.

I would make a short change log: what changed, why it changed, and when you expect enough data to evaluate it.

Google’s current explanation of Smart Bidding learning says that editing creatives does not, by itself, reset historical learning or trigger a new "Learning" status. Newly edited ads still require policy review. Structural changes and conversion-goal changes can have different effects.

So avoid treating the learning phase as a reason to leave poor messaging in place. Be more cautious about repeatedly changing bid strategy, conversion goals, and large portions of campaign structure without a plan.

Improve generic ChatGPT ad copy using real business details

AI can help you draft advertisements, but it does not automatically know what makes your flower shop better for local buyers.

Compare:

Generic ad: "Beautiful Flowers. Buy Flowers Today."

More useful ad direction: "Fresh Bouquets in [City]" / "Order Flowers from a Local Shop" / "See Available Arrangements."

Then use the description to communicate a genuine advantage: pickup availability, verified delivery area, customization, opening hours, or a special service only if the business actually offers it.

I recommend that your ad answers three questions:

• What exactly do you sell?
• Why should someone choose your business?
• What should they do next?

The message also needs to match the landing page. An ad promoting birthday bouquets should lead to a relevant collection or page, rather than making shoppers hunt through an unrelated homepage.

For local florists, check ZIP codes and location intent

In the Q&A, the advertiser wanted customers in nearby ZIP codes rather than national searches. That is a reasonable starting point, but location targeting deserves its own review.

Google Ads location settings can include people present in or regularly in the target area, or people showing interest in it. Those audiences are not always the same.

A person outside the city might order flowers for a friend inside the delivery area. Depending on how the shop operates, that customer may still be valuable.

Use your real delivery/pickup geography to choose the settings, and evaluate the geographical and search-term reports after launch. No location targeting method is perfectly accurate.

See Google’s advanced location options.

Track orders and qualified enquiries—not just clicks

Negative keywords improve traffic relevance, but that is only one part of Google Ads optimization.

For a florist, meaningful conversions may include:

• Completed online bouquet purchases.
• Valuable phone calls about flower orders.
• Orders or booking enquiries through the website.
• Other verified business actions.

Check that these actions are tracked accurately. If the account reports every page visit as a primary conversion, bidding decisions can become misleading.

You should also review actual customer feedback, landing-page usability, device performance, and the reasons why people do not complete their purchases.

For the broader process, read my Google Ads optimization guide and Google Ads audit checklist.

My first-week Google Ads review checklist

If I were reviewing this new flower-shop campaign after seven days, I would:

1. Confirm the campaign targets the actual delivery and pickup areas.
2. Check whether the right orders and enquiries are recorded as conversions.
3. Open the search terms report and identify clearly irrelevant intent.
4. Add targeted negatives using an appropriate match type and campaign/ad-group scope.
5. Review competitor-name searches separately from generic florist searches.
6. Replace generic ad wording with truthful, specific business benefits.
7. Check whether each ad leads to a relevant page with a clear call to action.
8. Document changes, then monitor the results over a sensible period.

I would not judge an entire campaign from a handful of clicks, or add a huge copied list of negative keywords just to feel that something had been optimized.

Frequently asked questions

Does adding negative keywords reset Google Ads learning?

Adding an exclusion is not the same as wiping out the account’s historical data. Google continues optimizing in the background. Consider how changes affect eligibility and traffic quality, and consult the campaign’s actual bidding status rather than relying on a universal rule.

Is there a limit to negative keywords in Google Ads?

Yes. Google’s published limit is 10,000 negative keywords per campaign. Negative keyword lists have separate limits. There is no universal recommended number to add each week.

Should a local business exclude all competitor names?

Not automatically. I would generally prioritize category and service searches for a small-budget campaign, then decide whether competitor terms should be excluded based on intent and results.

Can I change responsive search ads after seven days?

Yes. Make worthwhile copy improvements and remember that edited ads are subject to review. Track major changes so you can interpret performance.

Final thoughts

The message I wanted the florist to take away from the video is simple: Google Ads optimization is an ongoing process. Keep looking at what customers actually search for. Exclude obvious waste, improve how you explain your offer, and make sure the account measures useful business outcomes.

Do not let the phrase "learning phase" stop you from fixing a clear problem—but do not change everything without a reason, either.

If you need a professional review of search terms, conversion tracking, or wasted Google Ads budget, you can explore the AARSWEBS Google Ads management service.

What is the most surprising irrelevant search term you have found in your Google Ads account? Share it in the comments.