Prima Garten

Prima Garten is a specialized online store operating in the German market, offering a wide range of modern polycarbonate greenhouses. Their product lineup focuses on durability, heat retention, and ease of assembly, catering to homeowners looking for premium gardening equipment.
Prima Garten Website
The Challenge

Prima-Garten had a strong range of greenhouses,

but the advertising setup did not unlock its full potential.

​

In Google Shopping, the account suffered from

Merchant Center errors and irrelevant product titles,

so part of the catalog simply did not receive impressions.

​

Search campaigns attracted a lot of informational traffic,

which stretched the budget and pushed CPA up to €309

with an average order value of €1,100.

​

On top of that, GA4 and Consent Mode V2

were configured incorrectly, preventing

smart bidding algorithms from optimizing

and building effective remarketing audiences.

Scope of Work
Technical infrastructure
  • GTM setup: Implemented tracking for all key events (Product View, Add to Cart, Transaction) without changing the site’s source code.
  • Consent Mode V2: Enabled GDPR‑compliant data collection and proper signal transfer to GA4.​
  • End‑to‑end e‑commerce analytics: Verified the full sales funnel and removed data gaps between Google Ads and GA4.​
  • Remarketing audiences: Built segments based on product views, cart additions, and abandoned checkouts.​

Google Merchant Center
  • Account audit & recovery: Fixed critical issues in shipping and return policies to restore a healthy GMC status.​
  • Product title optimization: Strengthened titles for higher relevance and smoother moderation.​
  • CSS partner integration: Switched to a CSS partner, unlocking up to 15% more reach at the same ad spend.​

Google Ads campaigns
  • Shopping launch & cleanup: Rolled out Google Shopping campaign with deep traffic cleaning (10,000+ queries; excluded manuals, used items, repairs).
  • Targeted search: Created high‑intent search groups for key greenhouse models FREYR, INANNA, CERES.​
  • Dynamic remarketing: Launched “Abandoned Cart” and “60‑day Visitor” display campaigns.​
  • Schedule & devices: Prioritized mobile users and cut low‑performing nighttime impressions.​
Results
By overhauling the technical stack and campaign structure, we removed the main growth barriers and turned Google Ads into a predictable source of sales.

The revamped Google Merchant Center and product titles restored catalog visibility, while switching to a CSS partner added up to 15% reach at the same budget. Updated GTM, GA4, and Consent Mode V2 delivered stable tracking and accurate CPA/ROAS for scaling.

The new Shopping + Search + remarketing setup, combined with deep traffic cleaning (10K+ queries), significantly reduced cost per sale from €309 in January to €86.90 in February, while both revenue and transactions grew.
Key Metrics
January 2026 → February 2026 (Google Ads)
  • CTR overall: 1.93% → 2.22%.
  • CTR Search: 8.28% → 9.38%.
  • CTR Shopping: 1.64% → 2.00%.
  • Average CPC: €0.41 → €0.34.
  • Clicks: 5,804 → 5,792 
  • Purchases (GA4): 8 → 20.
  • Revenue: €8.8K → €11K.
  • Overall CPA (Ads): €343 → €86.90.
  • Shopping CPA: €260.57 → €65.23.
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Hohenzollernring 92,
50672 Cologne, Germany
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