Tools & Essentials

Grow smarter.
Not harder.

Free tools built for home growers — from picking your strain to knowing the exact moment to chop.

🔬
Clear · Cloudy · Amber
Upload a photo. Get an answer.
AI-Powered · Free

Harvest Window

Upload a trichome photo and our on-device TensorFlow model tells you exactly where you are — clear, cloudy, or amber — and whether it's time to chop.

Clear — Too early. THC still building.
Cloudy — Peak THC. Cerebral, energetic.
Amber — THC → CBN. Body, sedative.
Analyze My Trichomes

Calculators

Lighting Calculator

Find the best LED for your tent, calculate grow cost, and dial in DLI. 132 lights compared side by side.

Best Light for Tent Grow Cost DLI

CFM Calculator

Calculate the exact fan and carbon filter size for your grow space. Fan & filter kits by tent size.

CFM Fan & Filter Kits Climate

Grow Space Calculator

Find the right tent kit for your space. Measure your room, get matched tent sizes and complete kits.

Tent Kits Space Calculator Setup

Grow Tools

Strain Search

Filter 2,800+ strains by type, THC, CBD, flowering time, and genetics. Find your next grow before you buy a seed.

2,800+ Strains Auto / Photo THC · CBD Flowering Time

Plant Doctor

45+ conditions covered — deficiencies, pests, diseases, and environmental stress. Diagnose by symptom and get a fix.

Deficiencies Pests Disease 45+ Conditions

How-To Videos

20 short videos from seed to cure. Tents, lights, CFM, germination, training, topping, flushing, bud washing — all of it.

20 Videos Seed → Harvest Beginner Friendly

Grow Blog

Deep dives on LEDs, nutrients, coco, hydro, ventilation, terpenes, and seeds. Gear reviews with affiliate links that keep this free.

Lighting Nutrients Hydroponics Gear Reviews

Just for Fun

Heisenberg Cannabis Trivia

Heisenberg

Cannabis trivia. How deep does your knowledge go?

Demo
Short-Term Mem-uh Memory Game

Short-Term Mem-uh...

Memory game. You'll forget you're playing.

Demo
Name That Strain Game

Name That Strain

Strain ID challenge. 2,800+ strains, one guess.

Demo
Go Toke No Fish Card Game

Go Toke! | No Fish!

Go Fish, but make it 420. Pass the deck.

Demo
Slots of Bud Cannabis Slots

Slots of Bud

Spin the reels. No real money, all real vibes.

Demo
Cannabis Watch Face 420 Time

Cannabis Watch Face

420 Time. Always know when it's time.

Google Play

Ready to start your grow? 🌱

Build a personalized day-by-day schedule — strain, nutrients, start date — and track it all the way to harvest.

Start My Grow