🪐 Multiverse Beans — Education

The Only VPD Chart You Need

Accurate Vapor Pressure Deficit values for every growth stage. Hover any cell for guidance.Slide the controls to find your VPD.

🌱

Clones & Seedlings

0.4 – 0.8 kPa

70–78°F · 65–80% RH

🌿

Vegetative

0.8 – 1.2 kPa

72–82°F · 55–70% RH

🌸

Flowering

1.2 – 1.6 kPa

75–82°F · 40–55% RH

🔬

All Stages

Full Range

Universal reference

Too Low <0.4

Low 0.4–0.8

Optimal 0.8–1.2

High 1.2–1.6

Danger 1.6–2.0

Extreme >2.0

Temperature 77°F

Relative Humidity 60%

1.05

kPa — Vapor Pressure Deficit

🌿 Optimal

Veg sweet spot. Max nutrient uptake & leaf expansion.

VPD = SVP(T_leaf) − (RH ÷ 100) × SVP(T_air)

Tetens equation · Leaf temp offset of −3°F when "Leaf" mode selected

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