Sweet Pea Shrub

Polygala x dalmaisiana

$23.00

1 Gallon | Hardiness Zones 8-10

This interesting fast-growing shrub is a hybrid between two South African species (P. opposistifolia x P. myrtifolia). It has one inch long dull green leaves and an open growth habit. The flowers are a lovely purplish pink with two winged petals that surround a white purple crest. The flowers look like little orchids. Plant in well-drained soil in sun or semi-shade. This plant is grown in California but little-known in the southeastern U.S. where it is well worth trying in the milder areas.

Plant Specs
  • Zones: 8 - 10
  • Sun: Full Sun and Part Shade
  • Soil: Well-drained
  • Height at Maturity: 3 - 5 Feet
  • Spread at Maturity: 2 - 3 Feet
  • Growth Rate: Moderate

Flower/Foliage

Flowers

  • Appearance: The flowers are vibrant, pea-shaped, and arranged in clusters at the tips of the stems. Each bloom features a rich purple to magenta hue, with a distinctive yellow or white crest at the center, giving it a striking, ornamental appearance.
  • Size: Individual flowers measure about 1 inch across, while clusters create eye-catching bursts of color.
  • Bloom Time: Flowers throughout the year in mild climates, with peak blooming in spring and summer.
  • Fragrance: Lightly fragrant, adding a subtle sensory element to its visual appeal.
  • Pollinator Attraction: The nectar-rich blooms are highly attractive to bees, butterflies, and other pollinators.

Foliage

  • Appearance: The leaves are lance-shaped, measuring about 1–2 inches long. They are deep green, glossy, and slightly leathery, providing a lush, evergreen backdrop to the colorful flowers.
  • Texture: Smooth and soft to the touch, contributing to the plant’s refined and elegant look.
  • Growth Habit: The dense foliage forms a compact, rounded canopy, creating an attractive, bushy appearance that complements the vibrant blooms.
  • Seasonality: Evergreen, retaining its lush foliage year-round, making it a reliable feature in any garden.

The combination of striking purple flowers and glossy evergreen foliage makes Polygala x dalmaisiana a standout ornamental shrub, perfect for adding year-round beauty to gardens and landscapes.

Care Info

Read full care instruction manual here.

Planting Requirements

  • Light: Thrives in full sun to partial shade. Full sun promotes the best flowering, but some afternoon shade is beneficial in hot climates.
  • Soil: Prefers well-draining soil with a slightly acidic to neutral pH. Enrich the soil with organic matter for optimal growth. Avoid heavy, waterlogged soils.
  • Planting Time: Best planted in spring or fall when temperatures are mild.

Watering

  • Keep soil consistently moist but not soggy during the first growing season to establish roots.
  • Once established, the plant is moderately drought-tolerant but performs best with regular watering during dry periods. Allow the soil to dry slightly between waterings to avoid overwatering.

Fertilization

  • Feed with a balanced, slow-release fertilizer in spring to encourage healthy growth and abundant flowering.
  • Avoid over-fertilizing, as excessive nutrients can lead to lush foliage at the expense of blooms.

Pruning

  • Prune lightly after flowering to maintain the plant’s shape and encourage additional blooms.
  • Remove dead or damaged stems at any time to promote healthy growth.
  • Cut back harder in late winter or early spring to rejuvenate the plant if it becomes overgrown or leggy.

Growth Habit and Size

  • Grows as a compact, rounded evergreen shrub with a moderate growth rate.
  • Reaches a mature height of 3–6 feet and a similar spread, making it suitable for borders, containers, or small garden spaces.

Pests and Diseases

  • Generally pest- and disease-free. Watch for occasional aphids or scale insects; treat infestations with insecticidal soap or horticultural oil.
  • Ensure good air circulation to minimize the risk of fungal diseases, especially in humid conditions.

Special Features

  • Flowers: Produces clusters of vibrant, pea-shaped flowers in shades of purple to magenta, often with a yellow or white center. The blooms are reminiscent of sweet pea flowers and are lightly fragrant. Flowers appear in abundance throughout the year in mild climates, with peak blooming in spring and summer.
  • Foliage: Evergreen, lance-shaped leaves are dark green, glossy, and provide an attractive backdrop to the colorful flowers.
  • Pollinator Attractiveness: The flowers are highly attractive to bees, butterflies, and other pollinators.

Winter Care

  • Hardy in USDA zones 8–10. Protect from frost in cooler regions by covering with frost cloth or moving container-grown plants indoors.
  • In marginal zones, mulch around the base to insulate roots during cold spells.

Landscape Uses

  • Ideal for mixed borders, foundation plantings, or as a container specimen. Its compact size and continuous blooms make it a standout in small gardens or patios.
  • Pairs well with other Mediterranean or drought-tolerant plants in water-wise gardens.

Additional Tips

  • Avoid planting in overly shaded areas, as this can reduce flowering.
  • Regular deadheading can encourage continuous blooming and maintain a neat appearance.

With its vibrant blooms, low-maintenance care, and pollinator-friendly nature, Polygala x dalmaisiana is a versatile and attractive addition to a wide range of garden settings.

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Grown in Aiken, South Carolina

At Woodlanders, we are committed to quality.

All our plant material is carefully propagated, grown, and nurtured at our humble nursery in Aiken, South Carolina.

Learn more about Woodlanders here.

Here’s a closer look at how we produce our plants:
from rooting to shipping, our top priority is ensuring you receive healthy, thriving plants for your garden’s success.

The majority of our plants are carefully cultivated from rooted cuttings, while we also utilize propagation methods such as seed, air layering, and grafting, thoughtfully chosen to suit each plant’s unique needs.

Our plants are cultivated using sustainable practices, including organic soil blends and eco-friendly pest management, ensuring they thrive while minimizing environmental impact.

We are proud to contribute to local biodiversity through ongoing donations to the Aiken Arboretum and support for local wildlife conservation efforts, helping to preserve and enhance our community’s natural ecosystems.

Frequently Asked Questions

What to expect upon delivery

All our plants are sold in 1-gallon sizes, though the height of each plant can vary depending on its growth rate and seasonality, typically ranging from 1/2 to 2.5 feet.

Each plant is carefully packaged with its roots enclosed in a secure plastic bag containing moist soil, forming a compact root ball. To ensure safe transport, the box is padded with recycled newspaper, providing both stability and eco-friendly protection from weather during shipping.

What is your return policy?

Review our full return policy information on our SHIPPING AND RETURNS POLICY page.

What payment methods can I use?

We offer 35 different payment methods including major providers like Mastercard, Visa, PayPal, American Express and Diners as well as many different local payment methods including Klarna, iDEAL, AliPay, Sofort, giropay, and many more.

Can I make changes to my order after it’s been placed?

At Woodlanders, we strive to fulfill orders as quickly as possible. Therefore, we can only accommodate changes to your order within the first 24 hours after it has been placed. These changes include adding or removing products and modifying the delivery address. If you need to make any changes or if there has been a mistake with your order information, please reach out to us promptly via our CONTACT page with your order number for the quickest resolution.

Your satisfaction is our priority, and we appreciate your understanding and cooperation.