Garden PlannerEvidence-aware. Garden with confidence.

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Your plans, tasks, seeds, and harvests in one place.

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This site has no weather service and stores nothing off your device. Frost dates come from your region preset or confirmed dates.

Check a local forecast before transplanting tender crops, and treat any night forecast below 2 °C as a frost risk. Future weather data will remain optional and clearly marked as live or stale.

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Our Methodology & Sources

We synthesize peer-reviewed research, university extension publications, and trusted horticulture resources. Our evidence levels help you understand how strong the science is behind the guidance.

Evidence tiers

Supported evidenceConsistent results from multiple robust studies
Traditional claimHistorical use reported, limited scientific support
Context dependentMixed or variable results across conditions
No verified relationshipNo reliable evidence identified

Primary source types

  • Peer-reviewed journal articles
  • University extension publications
  • Government & research institute reports
  • Systematic reviews & meta-analyses

Last updated

August 24, 2026

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