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When to Plant
Peppers in Greendale, Wisconsin, United States of America

Planting vegetable seeds at the correct time is the most important step for getting the most out of your garden. Knowing exactly when to plant peppers in your garden in Greendale, Wisconsin, United States of America will increase growing success and provide better yields.

Check optimal planting dates regularly for best results because the weather, and our results, change daily. 

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The optimal time to plant peppers in Greendale, Wisconsin, United States of America is  - . The best day is with a success rate of %.


Anywhere between 70-100% is great. If consistently below that you may want to start growing from seedling or young plant, or possibly grow in sheltered environment

Avg. Temp (F)
Soil Temp (F)
Sunlight Hours
Growmigo - Today Graph

Optimal time frame to start

Frost free days

Grow period

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Important pepper growing information relevant to your exact garden location in Greendale, Wisconsin, United States of America:

The total number of frost free days for your garden in Greendale, Wisconsin, United States of America is days, but the total number of optimal days to plant peppers is days.

For best results you should start planting peppers in days starting .

Recommended Pepper Varieties

for Greendale, Wisconsin, United States of America
Fooled You
Sweet Banana
Ancho 101
Ancho San Martin
Beaver Dam
Big Red
Biker Billy
Charleston Hot
Early Jalapeno
Hot Paper Lantern
Long Red Slim
Mucho Nacho
Serrano Chili
Thai Dragon
Sweet Red
Antohi Romanian
Cherry Pick
Early Crisp
Fat 'N' Sassy
Giant Marconi
King Arthur
Red Knight
Red Ruffled Pimento
Round of Hungary (cheese type)
Yankee Bell

Gardening Data Sources

for Peppers

University Research

Cooperative Extension

Gardening Websites

Gardening Blogs

Seed Suppliers

Seed Breeders

Garden Centers

Home Gardeners

Other Sources

Gardening Data Sources

for Peppers

University Research

33 sources

Cooperative Extension

42 sources

Seed Suppliers

100 sources

Seed Breeders

68 sources

Home Gardeners

1 sources

How to Grow Peppers in Greendale, Wisconsin, United States of America

Greendale, Wisconsin, United States of America How to grow peppers: referred to as sweet or bell peppers. 50% of home gardeners recommend to directly sow pepper seeds outside in the garden. The other 50% start growing pepper seeds inside (or other sheltered environment) or simply buy young or mature pepper plants and plant them outside in the garden when temperature is suitable. 

Pepper seeds love heat. If they don’t get their desired temperature they will not sprout. Sow pepper seeds in pots or trays 0.3 inches (0.7 cm) deep. Many home gardeners germinate their pepper seeds on wet cloth or paper towel encased in ziplock bag. Once the seeds germinate they transplant them into small pots or trays. 

Optimal soil temperature for germination is between 79°F (26.1°C) and 88°F (31.1°C). Under these conditions seeds will germinate in approximately 10-19 days. If starting inside you may want to use a heating mat placed under the pots, trays or paper towels to ensure optimal temperatures for pepper seed germination. 

Peppers require 70-90 days to be ready for harvest from seed, depending on the pepper variety and the weather during the growing season. Expect days to maturity to be closer to 90 days. 

Once pepper seeds have germinated and 3-4 true leaves have grown the optimal day temperature for growth is between 71°F (21.7°C) and 76.7°F (24.8°C). Optimal night temperature is between 60.5°F (15.8°C) and 66.3°F (19°C). Pepper can endure air temperatures as low as 60°F (15.5°C) during the night and up to 80°F (26.7°C) during the day. 

Soil temperature during pepper growth should be between 62.9°F (17.2°C) and 68.3°F (20.2°C) in optimal conditions, but can withstand soil temperatures as low as 61.2°F (16.2°C). 

Required soil pH for pepper growth is 5.5-7.0 but the optimal pH is 6.4-6.6. 

Optimal sunlight for pepper is 6-12 hours per day. Pepper should be watered between 2-2.5 inches of water per week, adjusting for weather conditions and type of soil accordingly. Over watering is a common problem with pepper plants. Many growers over water their pepper plants, and thus stunt plant growth and wash away vital nutrients. 

This may sound strange but as a general rule you should water your pepper plants when they are wilting. The pepper plants wilt under hot temperatures as a mechanism to protect themselves, by reducing surface area that is exposed to the sun. Make sure that when you water the water reaches the deep roots even as much as 5 inches deep. This will create a healthier plant, reduce watering frequency and enable the plant to survive longer without water. 

Pepper spacing: When planting pepper seeds directly into the ground sow seeds 0.3 inches (0.7 cm) deep spaced 17.5 inches (44.5 cm) apart with rows spaced 25.2 inches (64 cm) apart. 

How to grow peppers in your garden: Pepper plants like hotter weather and should only be planted when there is no danger of frost. Pepper plants are susceptible to transplant shock, which can damage the plant, stunt plant growth and reduce plant yield. To reduce shock harden the plants prior to planting. Sweet peppers should be harvested before they change their color and fruit must be firm and fully developed.

For more real-time hyper local detailed growing information download the GardenWeather App on IOS. It is now the leading gardening and weather app, more accurate than The USDA zone map for frost dates. GardenWeather™ is a technology and agri-tech startup providing real-time hyper local planting and gardening recommendations enabling home gardeners and homesteaders to make data-driven gardening decisions.

Use these images to know if your pepper is heading in the right direction and growing properly. Exact number of growing days varies for each pepper variety. Below is the average number of days for each stage gathered from many different varieties.

12 days
Young seedling
7 days
Mature seedling
12 days
Young plant
9 days
Mature plant
45 days
Total days:
85 days

12 days
Young Seedling
7 days
Mature Seedling
12 days
Young Plant
9 days
Mature Plant
45 days
Total Days
85 days

Pepper Germination Guide

(Stage 1: Germination)

Germination is the process by which a plant grows from a seed. It is the first stage of the plant growing process and it begins when the seed is sown and ends when the radicale emerges out of the seed.

All seeds require proper soil temperature, moisture, air and light conditions to germinate successfully. However, during the germination stage the seeds require more soil warmth and moisture than light exposure.

Seeds respire just like any other living organism, requiring oxygen and producing carbon dioxide (CO2), so it is crucial to use a soil media that is sufficiently aerated so that the seeds do not “suffocate”.

33% of our growing experts recommend to directly sow pepper seeds into the ground. What is direct sowing and why do I care about it?

Required germination period

10-19 days

(18 sources)
Growmigo - Germination Period
Optimal germination period

8-13 days

(60 sources)
Required soil temp.

67.1º-94.8ºF / 19.5º-34.9ºC

(53 sources)
Growmigo - Soil Temp
Optimal soil temp.

79.6º-88ºF / 26.4º-31.1ºC

(199 sources)
Required day temp.

60º-95ºF / 15.6º-35ºC

(2 sources)
Growmigo - Day Temp
Optimal day temp.

71º-80.9ºF / 21.6º-27.2ºC

(22 sources)
Required night temp.

60º-80ºF / 15.6º-26.7ºC

(4 sources)
Growmigo - Night Temp
Optimal night temp.

58.7º-71.4ºF / 14.9º-21.9ºC

(52 sources)
Growmigo - Seed Depth
Optimal seed depth

0.3 inches / 0.7 cm

(138 sources)
Growmigo - Plant Spacing
Optimal plant spacing

13.6 inches / 34.5 cm

(24 sources)
Growmigo - Row Spacing
Optimal row spacing

18.4 inches / 46.9 cm

(88 sources)

Pepper Growing Guide

(Stages 2-5: Growth)

Once seed has germinated and radicale has emerged the second stage of the plant growing process begins, developing from radicale to cotyledon -the embryonic first leaves of the seed forming a young seedling.

During the third stage of plant development cotyledon develops to 3-4 true leaves, stem begins to grow, becoming a mature seedling.

In the fourth stage the mature seedling develops to a young plant, ready for transplanting.

The fifth stage of plant development the plant is fully mature bearing fruit and/or flower.

The following guidelines apply to all of the pepper plants’ needs during stages 2-5 from radicale emergence to full maturity. During these stages sunlight becomes a more active participant in plant growth and development than in the germination phase.

Soil pH is an important factor during these stages as well. What is pH and why is it important?

Growmigo - Sunlight
Requires direct sunlight

(4 sources)
Required soil temp.

61.2º-95ºF / 16.2º-35ºC

(5 sources)
Growmigo - Soil Temp
Optimal soil temp.

62.9º-68.3ºF / 17.2º-20.2ºC

(5 sources)
Required day temp.

65º-80ºF / 18.4º-26.7ºC

(121 sources)
Growmigo - Day Temp
Optimal day temp.

71º-76.7ºF / 21.7º-24.8ºC

(83 sources)
Required night temp.

60.8º-72.8ºF / 16º-22.7ºC

(81 sources)
Growmigo - Night Temp
Optimal night temp.

60.6º-66.3ºF / 15.9º-19.1ºC

(180 sources)
Required sunlight hours


(4 sources)
Growmigo - Sunlight
Optimal sunlight hours


(68 sources)
Required soil pH


(5 sources)
Growmigo - PH
Optimal soil pH


(142 sources)
Required watering amount

1-3 inches / 2.5-7.6 cm (per week)

(1 sources)
Growmigo - Watering Amount
Optimal watering amount

1.5-2 inches / 3.8-5.1 cm (per week)

(2 sources)
Growmigo - Seed Depth
Optimal depth

0.7 inches / 1.8 cm

(47 sources)
Growmigo - Plant Spacing
Optimal plant spacing

17.5 inches / 44.5 cm

(144 sources)
Growmigo - Row Spacing
Optimal row spacing

25.2 inches / 64 cm

(138 sources)

How difficult is it to grow peppers?

Growing peppers, or any other vegetable for that matter, is not hard, however some plants require more attention and care than others depending on the following factors:


Are you starting to grow your plant from seed? seedling? young plant? Depending on what stage plant you choose to plant will impact growing difficulty and patience.

The length of the growing season for your exact garden location.

If you have a short growing season and you want to start growing from seed then you may need to start the growing process in a sheltered environment (greenhouse or inside your home) which will require more involvement in the growing process.

Whether you direct sow in the garden or start in trays and then transplant also affects the level of difficulty

Growing difficulty level - 0

Growing patience level - 0

Companion Planting Guide

for Peppers

What is companion planting?

Companion planting is intentional planting of two or more vegetables and/or flowers next to each other in order to positively impact plant health and yield

Companion plants for peppers
Growmigo - Companion Planting
Growmigo - Companion Planting
Growmigo - Companion Planting
Growmigo - Companion Planting
Growmigo - Companion Planting
Growmigo - Companion Planting
Growmigo - Companion Planting
Growmigo - Companion Planting
Growmigo - Companion Planting
Companion plants for peppers
Growmigo - Bad Companion Planting
Growmigo - Bad Companion Planting
Growmigo - Bad Companion Planting
Growmigo - Bad Companion Planting
Growmigo - Bad Companion Planting
Brussels Sprouts

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