Local-first
Grow Core, Home Assistant, firmware, and history keep working without a mandatory cloud account or internet connection.
v0.1.0-alpha · open source
Grow automation you actually control
GrowRig is an open, local-first ecosystem for monitoring and automating grow tents, boxes, and rooms — built on Home Assistant, open controller hardware, and equipment you can replace.
One ecosystem, clear boundaries
The integration of a commercial product, without the lock-in.
Replaceable hardware
Devices are described as structured capabilities, not hard-wired to a single vendor. Swap a fan or sensor without rewriting your setup.
Safe by layers
Hardware, controller firmware, Grow Core, networking, and the UI each own explicit safety responsibilities and fallbacks.
Open and understandable
Source, APIs, protocols, and device profiles are published. Every automated decision can be inspected, observed, and explained.
How it works
Intent flows down; state and safety flow up. Each layer keeps working on its own.
- 1Grow AppSetup, dashboards, alerts
- 2Grow CoreDomain model + control law
- 3Home AssistantDiscovery + protocols
- 4Grow ControllerLocal PWM + failsafes
- 5EquipmentFans · sensors · lights
Works with your gear
50 supported products across 7 categories, from the same definitions the platform uses. Browse by category, just like Home Assistant integrations.
Beyond the hardware
GrowRig also ships crop definitions, a stocked inventory catalog, and connects to outside services.
Supported species
3 crop definitions — stages, cultivar attributes, care actions and feeding schedules for your grows.
Supported products
67 ready-made inventory templates — nutrients, media and supplies — that pre-fill an item and stay bound to their definition.
Supported integrations
3 external-service bundles — AI providers, weather data and notifications — configured as encrypted instances.
New to indoor growing?
Start from nothing. Our beginner guide walks you through how GrowRig works and exactly what tent and equipment to buy for a first setup.