It’s important to know what temperatures poblano peppers need to grow in order to have a successful crop!
Poblano peppers grow best in warm, but not hot, conditions. The best temperature to plant poblano pepper seeds is 70-80°F; outside of this temperature range, they won’t germinate. If you are transplanting seedlings, you need nighttime lows to consistently be above 50°F but below 70°F in order to allow the plants to photosynthesize efficiently.
Keep reading for more information on poblano pepper planting and growing temperatures!
What’s the ideal temperature to plant poblano peppers?
When should you plant your poblano pepper seeds?
The ideal temperature to plant poblano pepper seeds is 70-80°F. They won’t germinate in temperatures much higher or lower than that.
If you want to germinate indoors and then transplant after your poblanos have grown into seedlings, read on!
Do poblano peppers grow at night or day?
You might be wondering if poblano peppers can grow at night. After all, they’re getting all the sun during the day, right?
Poblano peppers grow at night and during the day. They actually grow faster at night! This is when they use all the energy that they created during the day via photosynthesis. It allows them to uptake more water, which increases turgor pressure and makes the peppers grow in size.
Poblano peppers grow both at night and during the day.
In fact, the majority of plants grow faster at night than during the day! Let’s break it down.
At night, plants utilize the sugars photosynthesized during the day. They specifically use these sugars to help them with water uptake.
Increased water increases turgor pressure- which makes the peppers grow in size!
What’s the best temperature for transplanting poblano pepper seedlings?
Whether you’ve germinated your seedlings yourself or bought them from a nursery, it’s important to transplant them correctly.
The best temperature for transplanting poblano pepper seedlings is when nighttime lows are consistently above 50°F. Transplant on a cloudy day or late in the afternoon. Daytime temps above 90 and nighttime temps above 70 can hurt your young transplants.
You want nighttime lows to consistently be above 50°F when you transplant your poblano pepper seedlings.
Daytime temperatures above 90 and nighttime temps above 70 can hurt transplants.
Transplant your poblanos on a cloudy day or late in the afternoon.
| Time of Day | Temperature |
|---|---|
| Nighttime | 50°F |
| Daytime | Try to avoid transplanting poblanos during the day. |
| Time of Day | Temperature |
|---|---|
| Nighttime | 70°F |
| Daytime | 90°F |
