What is a Cannabis Grow Diary?
A cannabis grow diary — also called a grow log, grow journal or grow report — is the weekly documentation of your cannabis grow. Growers track all key metrics: plant height, pH, EC, temperature, humidity and feeding schedule.
An autoflower grow diary is especially important because autoflowering strains grow on a fixed timeline regardless of light cycle, leaving little room for error. Whether you are running an indoor grow journal or an outdoor grow diary, keeping a detailed grow log helps you identify issues early, maximise yield and improve with every harvest.
On GrowPilot.guide, growers keep their digital cannabis grow journal directly in the app — with photos, weekly reports, measurements and phase tracking from germination through vegetation, flowering and all the way to harvest.
Frequently Asked Questions about Grow Diaries
What is the difference between a grow diary, grow log and grow journal?
All three terms mean the same thing: a written record of a cannabis grow. Grow diary and grow journal are the most common terms in English, while grow log is popular in online communities. On GrowPilot.guide the feature is called the Grow Diary.
What should I track in a cannabis grow log?
A complete grow log should include: plant height, growth phase (germination, seedling, vegetation, pre-flower, flowering, flush, harvest), pH, EC, temperature, humidity, VPD, light intensity (PPFD/DLI), feeding schedule, training techniques (topping, LST, defoliation) and photos.
Why is an autoflower grow diary so important?
Autoflowering strains complete their full life cycle in just 60–90 days, making weekly documentation essential. Unlike photoperiod strains, you cannot extend the vegetative phase to recover from mistakes — a detailed autoflower grow log helps you spot problems before it is too late.
Indoor vs outdoor grow journal — what's the difference?
An indoor grow journal focuses on controlled environment data: LED light schedules, tent temperature, VPD and nutrient dosing. An outdoor grow diary tracks weather conditions, rain, sunlight hours and seasonal phases. Both benefit from regular weekly entries.