What Are the Ideal Temperature and Humidity Levels for Growing Runtz?Updated 2 days ago

If you’ve picked up Runtz feminized or autoflower seeds, you’re growing a powerhouse hybrid known for its candy-sweet terpenes and dense, resin-rich buds. To get the best results, maintaining the right heat and humidity levels through each stage is key.

🌱 Seedling Stage (Week 1–2)

• Temperature: 70–78°F (21–26°C)

• Humidity: 65–70%

• Tip: Use a humidity dome or misting to maintain moisture without overwatering.

🌿 Vegetative Stage

• Temperature: 72–82°F (22–28°C)

• Humidity: 50–60%

• Tip: Keep air flowing to strengthen stems and reduce mold risk.

🌸 Flowering Stage

• Temperature: 68–78°F (20–26°C)

• Humidity: 40–50% (early), then 35–45% (late flower)

• Tip: Lowering humidity during late flower helps protect dense Runtz buds from mold and preserves trichomes.

🌾 Drying & Curing (Post-Harvest)

• Temperature: 60–70°F (15–21°C)

• Humidity: 50–60% (drying), 58–62% (curing jars)

• Tip: Avoid fluctuations — stable environments preserve terpenes and smoothness.

Runtz thrives in a balanced environment. Whether you're growing indoors or in a greenhouse, monitoring temp and humidity can make all the difference in your final yield and bud quality.