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How to Grow and Care for Snow Peas

Lowe's Editorial Team

By Lowe's Editorial Team
Published January 21, 2025

Snow peas are easy to grow in vegetable beds and potted gardens, making them an ideal choice for home gardeners. Sweet and crunchy, snow peas are best grown during the cooler months of the year. In this article, we’ll guide you on how to grow snow peas and care for them.

Tools and Materials

How to Grow Snow Peas From Seed

When sowing the seeds for snow peas, ensure these conditions are met for successful germination:

Temperature

Before planting snow pea seeds, make sure the temperature is between 45 to 70 degrees F. Although snow peas can​ survive frost, it is better to avoid it altogether and sow the seeds during early spring.

Preparing the Soil

The soil for the snow peas should be rich in organic matter. If necessary, work organic manure into the soil before planting.

Install a Garden Trellis

Install a garden trellis beforehand to provide ample support to the growing vines and to avoid disturbing the roots later. Make sure the area can support the trellis as you may need to anchor it on a wall or the ground.

  • Use measuring tape and mark where you'll place the trellis.
  • On the marked spots, dig post holes about two feet deep in the soil.
  • Place the trellis posts in the holes.
  • Secure the posts by backfilling the soil and tamping down firmly.

How Deep to Plant Snow Peas

Select the area where you want to plant your seeds. Directly sow the peas into damp, prepared soil near the base of the trellis. The bottom of the trellis should not be more than three to four inches above the ground so the young plants can latch onto it easily.

Snow peas are planted by sowing the seeds 1 ½ to 2 inches apart and 1 ½ inches deep with 18 to 24 inches between rows. When spacing rows, it is important to consider for easy access during harvesting.

Planting in Pots

Planting snow peas in pots can be tricky as they are prone to toppling over and need constant support. Choose a medium-sized pot at least 20 - 30 cm deep that's easy to position against a trellis or fence. Sow the seeds about 2 inches apart in a damp composition of well-draining soil and compost.

Caring for Snow Peas

​Caring for snow peas requires little effort. Just keep the following things in mind.

Optimal Sunlight

Snow peas need six to eight hours of direct sunlight and partial shade. Their vines are tender, and too much sun can damage them. Snow peas can grow in partial shade, but they won't yield as much produce as those grown in the full sun.

Water Regularly

Snow peas need to be watered regularly, at least 1 inch per week. In hotter climates, keep the plants well-watered, or the peas can grow to be tough instead of crunchy.

Required Temperature

Snow peas thrive in cool temperatures and can tolerate some frost. As long as the soil remains cool, humid weather is also tolerable. However, they do not perform well in temperatures above 85 degrees F.

Fertilizers

It is recommended to add fertilizer to your soil immediately after planting snow peas and also after the first harvest.

Pests and Diseases

Powdery mildew is common in snow peas and usually appears during hot weather. Aphids and weevils are also drawn to snow peas. If the infestation is mild, a water hose can be sufficient to wash these pests away. If not, spray the plants with pesticides.

Caution

Wear gloves and safety goggles when handling pesticides and fertilizers to avoid contact with eyes or skin. 

When to Harvest Snow Peas

Snow peas can be picked before the ​pod starts to swell and when the peas are slightly enlarged but not fully formed. The pods should be glossy and flat. Harvest peas every two to three days as the pods grow pretty fast. Hold the vine with one hand and gently snap the pea pod from the plant or use scissors to cut it off. If you wait too long, the peas will become tough and starchy.

Learning how to grow snow peas is easy and you can harvest a plentiful crop less than two months after planting. 

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