d9961a76ad
Fixes duplicate placeholder cover image on the 3 newest blog posts, broken aspect-ratio classes on the albums listing page, and a non-responsive fixed sidebar on the chat page.
579 B
579 B
title, date, image, summary
| title | date | image | summary |
|---|---|---|---|
| VPD Explained for Complete Beginners | 2024-03-20T10:00:00Z | /images/IMG_9449.jpeg | Temperature and humidity are connected. Learn how to hit the sweet spot. |
VPD stands for Vapor Pressure Deficit. Think of it as the air's drying power.
If the air is too dry (high VPD), plants sweat too much and slam their stomata to save water. Growth stops. If the air is too humid (low VPD), they barely sweat. No water movement means no calcium uptake.
You want the Goldilocks zone. For early veg, aim around 0.8 kPa. For flower, push 1.2–1.4 kPa.