How to Grow & Care for Sweet Peas

Sweet peas are lovely flowers that can add color and life to a flower bed. They are easy to grow and will reward you by blooming all summer long if cared for properly. Besides, they are one of the best flowers you can grow in a vegetable garden. They will benefit your garden by fixing nitrogen in the soil and reducing soil erosion. These fragrance flowers come in a wide array of colors, making them an irresistible option for your garden. Read to learn how to grow and care for them.

Sweet Pea Varieties

Sweet peas come in different species with different features and growing trends. Here are the best for your home garden:

Crimson Ripple (Lathyrus odoratus)

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Crimson Ripple offers one of the unique climbing habits of all our pea varieties. This variety is sure to please any gardener and will be a favorite in your flower beds. Crimson Ripple produces 8 feet stems with very early yields. Vines are covered with beautiful crimson pink and white flowers, which bloom from spring to fall.

Fire and Ice (Lathyrus odoratus)

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Fire and Ice is a plant with beautiful bi-colored flowers with deep pink and white markings. The flowers are born on long stems about 6 feet tall, making them very suitable for cutting for indoor arrangements. Or you can grow this as an annual climber and decorate your garden fences or walls. With the blooming season starting from spring to fall, this plant appreciates cool and dry climates.

Promiscuity (Lathyrus odoratus)

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This variety bears beautiful scented bi-colored blooms in the range of pink, purple and white colors. They start blooming from late summer to early fall. Beautifully, promiscuity blooms are good options for cut flowers, and they will last long when immersed in water. Promiscuity plants are relatively pest-free and easy to maintain once established in the garden.


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This unique sweet pea variety bears stripped, bi-colored and solid-colored flowers in different shades. Fragrantissima is a vigorous plant with a sturdy stem that grows up to 6 feet high. This variety features among the most fragrant species of sweet pea, making them excellent for vases and containers.

Miss Willmott

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This extraordinary heirloom sweet pea bears beautiful flowers in apricot, orange and pink shades making it eye-catching. Miss Willmott varieties can grow to six feet tall, taking grey-green leaves made of five broad leaflets. In regions with cool summer, this variety will bloom throughout the summer season. This plan is excellent for vases and containers.

Sweet Pea Care and Maintenance

The sweet pea plant does not need much care to thrive but will bloom best when fertilized and deadheaded regularly. Pinching the terminal growth frequently promotes bushy growth with many flowers.

Propagating Sweet Pea

You can plant sweet peas from seeds, and they will germinate relatively quickly. Speed up the germination process by nicking the seed coat with a knife. Avoid injuring the ‘eye’ area.

Alternatively, you can propagate sweet peas cuttings. Prepare cuttings from young sweet peas seedlings to make them root before growing them.

Sweet Peas Growing Conditions


Sweet peas love rich and well-draining soil. When planting them from seeds, sow the seeds in a top-quality peat-free compost.


During the growing conditions, maintain moist soil. Check whether the plant needs watering by dipping your fingers in the soil; if it feels dry, water the plant.


Sweet peas grow happily in full sun, but they can tolerate shady environments. During hot summer afternoons, place them under a shade.

Sweet Peas Pests and Diseases

Common pests on sweet peas include:

  • Aphids
  • Cutworms 
  • Caterpillars
  • Slugs and snails that attack new plants

Use home remedies to control mild infection of aphids and slugs. Neem oil is a good home remedy for handling the above pests.


Sweet peas are beautiful flowers that are easy to grow in any garden. Start growing them today to achieve a colorful yard. Subscribe to our blog today for more gardening tips. 

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