Lawn Care Journal

Built for serious lawn care

Lawn Care Journal pairs a detailed journal with GDD, rain and weather context, Ask AI, and the integrations homeowners actually use—plus Bring Your Own Key for AI on your terms.

• Lawn journals & care logging

  Log mowing, fertilizing, watering, and 40+ care types with zones, products, notes, and photos—synced with iCloud.

• Growing Degree Days (GDD)

  Track GDD for pest and growth timing so seasonal jobs land when conditions favor them.

  Read seasonal guides →

• Rain & Watering

  See rain and sprinkler activity from multiple sources, then classify drafts before you save them to your journal.

• Ask AI & Lawn Plans

  Ask lawn-scoped questions and generate projects and Lawn Plans. Bring Your Own Key—use your own API keys so Ask AI runs with your preferred provider.

• Weather, Local conditions & stations

  Forecast and conditions for your lawn, regional Local conditions pages, and personal stations such as Tempest and Ambient Weather.

  Browse Local conditions →

• Sprinkler integrations

  Connect Rachio or Hydrawise to bring controller context into your journal and tools.

• Diagnose, Identify & My Plants

  Snap a photo to Diagnose lawn issues or Identify weeds, plants, and insects. Track trees, shrubs, and flowers in My Plants.

• Calculators & tools

  Field checks and math helpers for lawn area, grass seed, NPK, liquid mixes, top dressing, and soil pH.

  Open calculators →

Download on the App Store

Seasonal lawn care guides

Extension-grounded walkthroughs for the jobs homeowners are timing right now—then dig into the full library when you need a deeper read.

• Spray SDS now?—late September

  Cool fronts hit bermuda yards? Late-September SDS fork: spray on the 70 °F streak, stage heat, wait Deep South, or skip.

• Seed rye?—late September bermuda

  Cool fronts hit bermuda yards? Late-September rye fork: seed on the 70 °F window, stage heat, wait Deep South, or skip.

• Spray now?—late September large patch

  Cool fronts hit warm-season yards? Late-September large-patch fork: spray on the 70 °F streak, catch up 80 °F hosts, stage, or skip.

• Still seed?—late September frost

  Missed Labor Day seed? Late-September frost clock: seed if runway remains, hold for dormant/spring, heat-delay catch-up, or skip.

• Keep scouting?—late September armyworms

  Past peak but moths still flying? Late-September armyworm fork: treat small larvae, keep weekly scouts until frost, recover cool-season, or wait warm-season.

Browse all articles →

About Lawn Care Journal LLC

Lawn Care Journal LLC is an Arizona limited liability company and the developer of Lawn Care Journal on the App Store. This site (lawncarejournal.app) provides company information, support guidance, and links to privacy and terms resources consistent with the app and store listing.