A single-file cultivation management app for tracking mother plants, clones, feedings, environments, harvests, and genetics. No accounts, no analytics, no ads. Your data stays on your device.
Live app: https://tracker.tropicalrootsmaui.com/ Latest release: see the Releases page License: GPL-3.0-or-later
Plant Manager is a progressive web app shipped as one self-contained
index.html file. There is no server, no build step, and no sign-up. All data
is stored locally in your browser (localStorage), with optional cloud backup
if you choose to wire up Firebase. Install it to your phone or desktop home
screen and it works fully offline.
Built by a grower, for growers, and for anyone who likes data about their plants. It follows a garden from seed or clone through veg, flower, harvest, and cure, then on to the next generation, and turns the whole record into charts and analytics. None of it leaves your device.
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| Dashboard | Plants & genetics | Analytics | KNF calculator |
Shown with the built-in demo garden (Hawaiian heritage landraces). Try it live: tracker.tropicalrootsmaui.com/?demo
- Mother plants: add, edit, search, archive; track strain, genetics, source, acquisition date, growth stage, and health status
- Clone tracking: log clone batches per mother with cut date, quantity, medium, and rooting hormone; auto-calculated success rate
- Clone lineage / family tree: visual SVG genealogy across generations
- Strain library: personal genetics database with type, breeder, lineage, flowering time, THC/CBD, terpenes, effects, flavors, and yield
- Strain catalog: 370+ built-in strains across multiple breeders and clone providers, including the Hawaiian heritage landraces, with autocomplete on every strain-name input
- Strain reviews: 1–5 star grow journals per strain with photos
- Seed bank: inventory tracker with germination rates, age tracking, and low-stock alerts
- Breeding / pollen tracker: pollen collections, crosses, and seed harvests
- Pheno hunt: run and score phenotype hunts across a seed batch, rank the keepers
- Plant nicknames & auto-numbering: name individual plants, or auto-number duplicates that share a strain
- Task scheduling: one-time and recurring care tasks with priorities, overdue/due-today highlighting, and auto-advancing due dates
- Feeding / nutrient log: track nutrients, amounts, pH in/out, EC/PPM, and pH-drift warnings; a large built-in product catalog across the major nutrient lines
- Feed schedule templates: built-in (GH Flora, Fox Farm, Gaia Green, Down To Earth, KNF) plus custom template builder; apply a schedule to a plant as tasks
- Grow environments: tents, rooms, greenhouses, etc. with dimensions, light setup, and per-environment sensor readings
- Environment readings: temp, humidity, light hours, pH, EC/PPM with trend sparklines and threshold alerts
- IPM log: pest, disease, and deficiency tracking with severity badges, treatment efficacy, reapplication reminders, and a 50+ treatment catalog
- Pest identification: photo-based ID via Google Cloud Vision (optional) or Google Lens fallback, plus a built-in visual pest guide
- Photo journal: visual timeline of grow photos linked to plant and stage
- Notifications: in-tab reminders for overdue tasks, threshold breaches, and feeding intervals
- Harvest tracking: wet/dry weight, dry ratio, trim/cure method, cure status, quality rating, terpene and flavor notes
- Flowering time tracking with harvest-window estimates per strain
- Trichome harvest tracker: clear/cloudy/amber percentages with harvest-window recommendations
- Dry-back tracking: saturation monitoring and "time to water" estimates
- Analytics tab: 30+ charts and data tables, all pure inline SVG: yield over time, yield by strain, cost per gram, strain ROI ranking, environment ↔ outcome correlations, feeding/training → yield correlations, and more
- Cost tracker: expenses across categories with cost-efficiency analytics
- Grow run manager: group plants into named runs and compare them
- Export reports: print-to-PDF Plant, Garden, and Analytics reports
- VPD calculator with trend chart
- DLI / light calculator (PPFD + photoperiod)
- KNF input calculator (10 Korean Natural Farming inputs)
- Soil mix calculator (4 recipes + custom builder)
- Nutrient mix calculator: dosing in ml/gal (liquids) and tbsp/gal (dry amendments)
- Medium fill calculator: soil volume to fill a bed, pot, or tent (cu ft / gal / L)
- CO₂ calculator: target injection by room volume
- Power / electricity cost calculator
- Crop-steering log (generative vs vegetative)
- Terpene profiles plus a KNF ferment tracker (log FPJ/FAA/LAB batches & timing)
- Companion planting guide plus a nutrient-availability pH chart
- Unit converter plus harvest forecast (projected dates & yields)
- Strain comparison: cost, yield, cost-per-gram, and money lost on dead plants
- Nutrient deficiency wizard (3-step diagnostic tree)
- Grow cycle templates (4 built-in lifecycle plans)
- Moon phase tracker (offline algorithmic, with KNF/biodynamic guidance)
- Grow room diagram: visual grid layout planner per environment
- pH/EC calibration log: multi-meter tracking with overdue reminders
- Fleet view: sortable table mode with filters and bulk actions
- Plant comparison: side-by-side metrics for 2–3 plants
- QR code tags: printable plant, clone, breeding-cross, and seed-packet labels with a built-in QR decoder (no external libraries)
- Grow calendar: month grid with per-day events and lunar guidance
- Daily snapshot: auto-generated daily report (optional auto-save)
- Guided setup wizard for first-run onboarding
- Command palette (Ctrl/Cmd+K): fuzzy-search 80+ actions from anywhere
- Shareable tool links: copy a deep link (e.g.
?tool=vpd) that opens straight into a calculator or tool, some carrying your input values
Open the live app in any modern browser. On mobile or desktop, use your browser's "Install" / "Add to Home Screen" option to install it as an app for offline use.
New here? Add ?demo to the URL (or Setup → Load demo data) to explore a
fully-populated garden first. Nothing is saved until you clear the demo.
Because it's a single static file, hosting is trivial:
# Clone the repo
git clone https://github.com/magikh0e/PlantManager.git
cd PlantManager
# Serve it locally (any static server works)
python -m http.server 8080
# then open http://localhost:8080Or open index.html directly in a browser. (A local server is
recommended so the service worker and PWA install prompt work correctly.)
To self-host, upload the contents of the repo to any static web host. There is no backend to deploy.
A self-hosted copy is fully standalone: the app never phones home, so it won't automatically know when a new version ships upstream. To keep up:
- Get notified of releases. On the GitHub repo, click Watch → Custom → Releases; GitHub then emails you on every new release. (Prefer feeds? Subscribe to the releases feed in any RSS reader.)
- Update your copy.
git pull(or download the latest release) and re-upload the files to your host. The bundledservice-worker.jsalready carries a bumped cache version, so returning visitors get the new build on their next load. Just make sure your host/CDN servesservice-worker.jswithCache-Control: no-cacheso a stale copy isn't pinned at the edge.
Your own users are then notified automatically: the service worker shows a "new version available" prompt when it detects the update. See CHANGELOG.txt for what changed in each release.
- Local-first. All your data lives in your browser's
localStorageunder a single key. Nothing is sent anywhere by default. - No tracking. No analytics, no ads, no third-party scripts.
- Backups are yours. Export your full database to a JSON file at any time and re-import it later. Exports carry an integrity checksum and are verified on import.
- Optional cloud sync. If you want cross-device backup, you can connect your own Firebase project (Google sign-in + Firestore). This is entirely opt-in.
All integrations are off by default and the app works fully without them.
| Integration | Purpose | What you need |
|---|---|---|
| OpenWeatherMap | Auto-fill temp/humidity, weather widget | Free API key |
| Firebase | Cloud backup/restore + auto-sync | Your own Firebase project |
| Google Cloud Vision | Photo-based pest/disease ID | Free-tier API key (1,000 img/mo) |
Keys are entered in-app (gear menu → settings) and stored locally. Pest ID falls back to Google Lens and the built-in pest guide when there's no key.
- Single file. The entire app is
index.html: markup, styles, and a single IIFE of vanilla JavaScript organized into ~85 modules. - No dependencies, no build. No frameworks, no bundler, no npm install. All charts and QR codes are generated with hand-rolled inline SVG.
- PWA. A service worker caches the app shell and assets for offline use; a web manifest enables home-screen install.
- Themes. Light/dark with system-preference detection.
- Responsive. Works on phones, tablets, and desktop.
Any current version of Chrome, Edge, Firefox, or Safari (desktop or mobile). PWA install and offline support are best on Chromium-based browsers and iOS Safari.
Issues and pull requests are welcome. Because the app is a single file, please:
- Keep changes vanilla JS, with no new dependencies or build tooling.
- Match the existing module pattern (
const Module = { ... }; window.Module = Module;). - Test against a populated database, not just the empty state.
See CHANGELOG.txt for full version history.
Free and open-source, built and maintained in my own time, with no accounts, tracking, or ads. If it has made your grow a little easier, a coffee is always appreciated and helps keep it going.
Released under the GNU General Public License v3.0 or later (GPL-3.0-or-later). Free and open-source: use it, study it, share it, and improve it.
Built by Tropical Roots Maui.