The Gardeners' Knowledge Hub

Power Bloom 2-8-4 Doubles Your Phosphate, Halves Your Nitrogen, and Does Nothing for Potassium
Gaia Green Power Bloom 2-8-4 and All Purpose 4-4-4 share the same container application rate, so switching between them doubles applied phosphate, halves applied nitrogen, and leaves potassium exactly where it was. Label math, garden bed rates, and why dose beats ratio when comparing dry bloom amendments.

Leave the Molasses Out of Your Compost Tea and You Can Use It on Food Crops Without Waiting
Compost tea ratios, brew times and the four hour window, plus the additive rule that decides whether the finished tea can go on food crops the same day.

A 1,600 CFM Whole House Fan Cools About 500 Square Feet
Fan airflow is the number everyone shops on. Attic vent area is the number that decides whether the fan can do anything at all.

Pick a Harvest Right Freeze Dryer by Batch Weight and Circuit Size, Not by Price
Tray space, batch weight, annual capacity and the dedicated circuit each Harvest Right home freeze dryer size needs, plus what a batch actually costs to run.

Worm Castings Stop Paying Off Above 10 Percent of Your Mix
Gaia Green Worm Castings are 2-0-0, which is the wrong number to judge them on. The research says the growth response peaks around 5 to 10 percent of your mix and falls off above it. Rates, cost per liter, and when compost is the better buy.

Silica for Plants: Mono-Silicic Acid Earns Its Price on Drippers, Hard Water and Bloom Feeds
Both silica chemistries end up as silicic acid in your reservoir. What the mono-silicic acid bottle actually removes is a pH swing, a precipitation risk and a potassium load you did not ask for.

Clonex Rooting Gel Review, and the Color Change That Is Not Spoilage
Propagation
Clonex Rooting Gel Review, and the Color Change That Is Not Spoilage
The active ingredient is 0.31% IBA and everything else...

Bubble Hash Micron Sizes: What Each Bag Catches and Which Ones Matter
Harvest and Extraction
Bubble Hash Micron Sizes: What Each Bag Catches and Which Ones Matter
An eight-bag set gives you eight screens a...

AutoPot Tray2Grow: The Complete Setup Guide (and the 6-Inch Rule That Makes or Breaks It)
A full setup and troubleshooting guide to the AutoPot Tray2Grow: how the AQUAvalve5 fill and shut-off cycle actually works, what fits on the tray, how to size and elevate your reservoir, and the six inch head height rule behind almost every failed install.

Do Adjustable LED Grow Lights Actually Grow Plants Better?
Adjustable LED grow lights do not add photons. Here is what dimming and pivoting bars actually change, and when the IONPRIME 10 is worth it over a fixed light.

IONPRIME vs IONFRAME vs IONBOARD: Which AC Infinity Grow Light Should You Buy?
Three lines, three prices, and a lot of overlapping coverage claims. Here is what separates them on the spec sheet, and which one belongs in your tent.

AC Infinity vs Spider Farmer: Which Smart Grow System Is Better?
AC Infinity UIS and Spider Farmer GGS solve grow room automation in two different ways. We compare controllers, sensors, fan speed control, warranty and light specs, including the places where Spider Farmer is the better buy.

