Swan Plant Asclepias physocarpa with cream-white flowers, narrow green leaves, and balloon-shaped seed pods growing in an outdoor ornamental garden
Swan Plant Asclepias physocarpa Seeds for Ornamental Gardens and Outdoor Planting
Swan Plant Asclepias physocarpa Seeds for Ornamental Gardens and Outdoor Planting
Swan Plant Asclepias physocarpa with cream-white flowers, narrow green leaves, and balloon-shaped seed pods growing in an outdoor ornamental garden
Swan Plant Asclepias physocarpa Seeds for Ornamental Gardens and Outdoor Planting
Swan Plant Asclepias physocarpa Seeds for Ornamental Gardens and Outdoor Planting

Swan Plant Asclepias physocarpa Seeds for Ornamental Gardens and Outdoor Planting

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    Handling 2–3 days
    Transit 6–8 days
    Total 8–11 days

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    • No dispatch on weekends or UK public holidays
Swan Plant Asclepias physocarpa with cream-white flowers, narrow green leaves, and balloon-shaped seed pods growing in an outdoor ornamental garden

Swan Plant Asclepias physocarpa Seeds for Ornamental Gardens and Outdoor Planting

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Growing Tips & Guides

Product Overview

Swan Plant (Asclepias physocarpa), also known botanically as Gomphocarpus physocarpus, is a distinctive ornamental flowering plant admired for its slender green foliage, delicate cream-white flowers, and unusual balloon-shaped seed pods. Native to southern Africa, this member of the Apocynaceae family offers a combination of upright growth, attractive flowering structures, and decorative seasonal features.

Swan Plant Seeds are suitable for gardeners interested in cultivating unusual ornamental plants in outdoor gardens, mixed flower borders, and botanical planting collections. The plant develops tall, branching stems with narrow green leaves and clusters of small flowers that gradually give way to rounded, inflated seed pods.

In warm climates, Swan Plant can grow as a tender perennial, while in cooler regions it is commonly cultivated as an annual. Its unusual appearance and distinctive growth habit make it an interesting addition to sunny garden landscapes.

Key Features

Common Name:
Swan Plant

  • Botanical Name:
    Asclepias physocarpa

  • Botanical Synonym:
    Gomphocarpus physocarpus

  • Plant Family:
    Apocynaceae

  • Plant Type:
    Tender perennial, commonly grown as an annual in cooler climates

  • Growth Habit:
    Upright, branching ornamental plant

  • Foliage:
    Narrow, lance-shaped green leaves

  • Flowers:
    Small, waxy, cream-white flowers with subtle pink or purple tones

  • Seed Pods:
    Rounded, inflated green pods covered with soft, bristle-like projections

  • Sunlight Requirements:
    Full sun

  • Product Overview

    Key Features

    Common Name:

    Botanical Name:

    Botanical Synonym:

    Plant Family:

    Plant Type:

    Growth Habit:

    Foliage:

    Flowers:

    Seed Pods:

    Sunlight Requirements:

    Plant care

    How to plant your seeds

    Follow these simple steps to give your seeds the best start.

    1. Prepare your soil & tray

      Fill trays or small pots with seed-starting mix. Press gently to settle—no need to pack tight.

    2. Sow seeds at the right depth

      Plant roughly 2–3× the seed’s width deep. Tiny seeds can be pressed lightly into the surface.

    3. Water & keep warm

      Mist or bottom-water. Cover until sprouting if the packet suggests it. Keep in a bright, warm spot.

    Help

    Frequently asked questions

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