Question 1

What is the ideal temperature for indoor plants?

Accepted Answer

Most vegetables and herbs thrive at 22–28°C (72–82°F); temperatures above 30°C stress plants and slow growth, while below 18°C slows photosynthesis—Mumbai growers should watch summer heat (35°C+) and winter drops carefully.

Question 2

What is VPD and why does it matter?

Accepted Answer

VPD (Vapor Pressure Deficit) is the difference between moisture in the air vs. maximum it can hold at a temperature; it determines how much plants transpire (breathe and drink)—wrong VPD causes slow growth, mold, or leaf curl.

Question 3

What humidity level is best for indoor growing?

Accepted Answer

Seedlings: 65–75% (high humidity for delicate roots); vegetative stage: 55–70% (moderate humidity for growth); flowering: 45–55% (lower humidity prevents mold on flowers/fruits); adjust based on temperature to maintain VPD.

Question 4

Do I need a dehumidifier in Mumbai?

Accepted Answer

During monsoon (June–September): YES—Mumbai humidity can reach 85–95%, which risks powdery mildew, mold, and root rot; dry season (December–February): usually no, ambient humidity 40–60% is fine.

Question 5

How do I cool a grow tent in Indian summer?

Accepted Answer

Exhaust hot air with inline fan (400–800 CFM for 4x4 tent); bring cool air from AC room if possible; shade tent from direct sun; use LED lights (less heat than HPS); run lights at night when ambient temp is cooler (20–25°C).

Question 6

Can I grow without climate control equipment?

Accepted Answer

Yes, in mild seasons (October–February in Mumbai) you can grow without active cooling/dehumidifying; but summer (March–May) and monsoon (June–September) will challenge plants—expect slower growth and higher risk of pests/mold.

Climate Control for Indoor Gardening: Temperature, Humidity, VPD & Equipment Guide (India Setup)

Climate Control for Indoor Gardening: Temperature, Humidity, VPD & Equipment Guide (India Setup)