Asclepias physocarpa Swan Plant with cream-white flowers, narrow green foliage, and inflated seed pods in a butterfly garden
Asclepias physocarpa Swan Plant Seeds for Butterfly Gardens and Natural Landscapes
Asclepias physocarpa Swan Plant Seeds for Butterfly Gardens and Natural Landscapes
Asclepias physocarpa Swan Plant with cream-white flowers, narrow green foliage, and inflated seed pods in a butterfly garden
Asclepias physocarpa Swan Plant Seeds for Butterfly Gardens and Natural Landscapes
Asclepias physocarpa Swan Plant Seeds for Butterfly Gardens and Natural Landscapes

Asclepias physocarpa Swan Plant Seeds for Butterfly Gardens and Natural Landscapes

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

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Asclepias physocarpa Swan Plant with cream-white flowers, narrow green foliage, and inflated seed pods in a butterfly garden

Asclepias physocarpa Swan Plant Seeds for Butterfly Gardens and Natural Landscapes

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Growing Tips & Guides

Description

Product Overview

Asclepias physocarpa, commonly known as Swan Plant, is a distinctive ornamental flowering plant recognized for its slender green foliage, delicate cream-white flowers, and unusual balloon-shaped seed pods. Also known botanically as Gomphocarpus physocarpus, this species belongs to the Apocynaceae family and is native to southern Africa.

Swan Plant Seeds are suitable for gardeners interested in growing distinctive flowering plants for butterfly gardens, botanical collections, and naturalistic landscape designs. The plant develops upright, branching stems with narrow green leaves and clusters of small flowers that contribute seasonal visual interest.

Swan Plant is also known for its association with monarch butterflies, serving as a larval host plant in regions where monarchs occur. Its decorative flowers and inflated seed pods make it an interesting addition to ornamental garden arrangements.

In frost-free climates, Swan Plant can grow as a tender perennial, while in cooler regions it is commonly cultivated as an annual.

Key Features

Common Name:
Swan Plant

  • Botanical Name:
    Asclepias physocarpa

  • Accepted Botanical Name:
    Gomphocarpus physocarpus

  • Plant Family:
    Apocynaceae

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

  • Growth Habit:
    Upright, branching ornamental plant

  • Foliage:
    Narrow, elongated green leaves

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

  • Seed Pods:
    Inflated, rounded green pods with soft, bristle-like projections

  • Light Requirements:
    Full sun

  • Soil Preference:
    Well-drained garden soil

  • Description

    Key Features

    Common Name:

    Botanical Name:

    Accepted Botanical Name:

    Plant Family:

    Plant Type:

    Growth Habit:

    Foliage:

    Flowers:

    Seed Pods:

    Light Requirements:

    Soil Preference:

    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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