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Asclepias (Milkweed or Silkweed)

Milkweeds or Silkweeds have annual flowering stems from perennial underground rhizomes. They make floriferous, honey scented umbels, and are rather robust perennials. For any humus rich, sandy or rocky soil in full sun to partial shade. The species offered here are fully hardy in Central Europe.
Sow at some 15°C from late summer to early spring in any very well drained soil, so that the soil will never stay too wet. Seeds in most species will require a prolonged cold period, and if sown in summer, they may not germinate until spring the following year. Transplant rhizomes about 15 cm deep after stems have died down in autumn.
Note: All parts are poisonous if ingested, the milk sap may cause severe skin irritations and eye burns.
All are USDA Climate Zone 7.
10 seeds per package.
Articles
Asclepias asperula (Antelope Horns Milkweed)

Asclepias asperula (Antelope Horns Milkweed)

80 (100)cm, Antelope Horns Milkweed makes dense terminal clusters of yellowish-green and deep purple flowers above large, broadly-lanceolate, opposite leaves. For any rich, very well drained soil in a sunny spot. Seeds from a certified wild collection in Daggett County, Utah, USA at some 1900m. VI-VII.
10 seeds per package.

price (plus Shipping Costs)
seed package 5292 € 4,99
Asclepias cordifolia (Heartleaf Milkweed)

Asclepias cordifolia (Heartleaf Milkweed)

80 (110)cm, Heartleaf Milkweed is an utmost showy species from meadows in the Sierra Nevada in California. Makes dense clusters of white and purplish, honey scented flowers above broad, cordate (heartshape) leaves. For any rich, very well drained soil in full sun. Seeds from a certified wild collection in Quincy, Plumas County, California, USA. VII-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package 0052 € 4,99*
* This price is valid if a single item is ordered only. The shop will automatically assign discounts on bulk purchases. If several packages are ordered from this species, they will be merged into a single package. Please refer to our General Terms of Business.
Asclepias curassavica (Mexican Butterfly Milkweed)

Asclepias curassavica (Mexican Butterfly Milkweed)

100 (140)cm, Mexican Butterfly Milkweed is a fast growing annual to perennial native of Central and Northern South America and makes bright orange and red flowers in terminal clusters. It is an important host plant for the Monarch butterfly (Danaus plexippus) and easily grown in any rich, well drained soil in full sun. In colder climates plants will die back to the ground in winter, but may sometimes resprout from the rhizome in late spring. Alternatively plants can be grown as annuals from seeds sowed in late spring under glass. Transplant seedlings to the final spot in the garden after the last freezing nights. VI-IX.
10 seeds per package.

price (plus Shipping Costs)
seed package1274 € 1,99
seed package
Asclepias exaltata (Poke Milkweed)

Asclepias exaltata (Poke Milkweed)

80 (180)cm, Poke Milkweed makes erect, herbaceous stems with purplish flowers in a dense umbel above broad, opposite leaves. It is native of humus rich woods in Conneticut (USA). For any humus rich, well drained soil in a sunny to partially shaded spot. VII-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package1009 € 3,99
Asclepias fascicularis (Narrow Leafed Milkweed)

Asclepias fascicularis (Narrow Leafed Milkweed)

100 (140)cm, Narrow Leafed Milkweed is an utmost ornamental species with linear, very narrow, grayish-green broad leaves on an erect stems crowned by several dense clusters of pale rose sweetly fragrant star like flowers. Native of mountainous areas in California. For any rich, very well drained soil in full sun. Seeds from a certified wild collection in Haun's Meadow, Plumas County, California, USA. VII-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package 0051 € 4,99
Asclepias hallii (Hall's Milkweed)

Asclepias hallii (Hall's Milkweed)

100 (140)cm, Hall's Milkweed makes dense pale purplish-pink and cream flower umbels above broad lanceolate-oval, greyish-green leaves. Native of opens spots in southwestern USA. For any rich, very well drained slightly rocky or sandy soil in full sun. VI-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package 4744 € 4,99
Asclepias incarnata (Swamp Milkweed)

Asclepias incarnata (Swamp Milkweed)

100 (130)cm, Swamp Milkweed produces pale rose and whitish rose flower heads above narrow leaves. Asclepias incarnata is native of Indiana, New Brunswick and Saskatchewan, and from Tennessee to Colorado, USA, where it occurs on the edges of swamps and ponds. It is very easily cultivated in any humus rich, well drained soil in a sunny spot. VII-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package 1275 € 1,99
seed package
Asclepias latifolia (Broadleaf Milkweed)

Asclepias latifolia (Broadleaf Milkweed)

80 (100)cm, Broadleaf Milkweed makes dense terminal clusters of green and yellow flowers above very broad, oval leaves. For any rich, very well drained soil in a sunny spot. Seeds from a certified wild collection in Washington County, Colorado, USA at some 1450m. VI-VII.
10 seeds per package.

price (plus Shipping Costs)
seed package 5294 € 7,99
Asclepias pumila (Plains Milkweed)

Asclepias pumila (Plains Milkweed)


10 seeds per package.

price (plus Shipping Costs)
seed package6968 € 2,99
Asclepias purpurascens (Purple Milkweed)

Asclepias purpurascens (Purple Milkweed)

100 (120)cm, Purple Milkweed is a much sought after species from open spots in woods of Indiana, from New England to North Carolina, and from Minnesota to Arkansas, USA, where several populations are threatened. Asclepias purpurascens has most attractive pure purple flowers in a terminal cluster on an erect stem with broad, mid green green leaves. In the garden trade Asclepias purpurascens is hopelessly confused with the much more common Asclepias incarnata. However, it can be easily distinguished from the latter by its much broader leaves and always uniform purple flowers, wheras in Asclepias incarnata flowers are bicolored in pale rose and whitish rose. For any humus rich, well drained soil in a sunny spot. Our seeds are from true-to-type Asclepias purpurascens. VI-VII.
10 seeds per package.

price (plus Shipping Costs)
seed package1276 € 7,99
Asclepias speciosa (Showy Milkweed)

Asclepias speciosa (Showy Milkweed)

100 (120)cm, Showy Milkweed is an ornamental species with grayish-green broad leaves and showy dense clusters of white, strongly sweet-scented flowers. Native throughout the midwestern and western states in the US. For any rich, very well drained soil in a sunny spot. Seeds from a certified wild collection in Greenville, Plumas County, California, USA. VII-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package 0050 € 2,99
Asclepias sullivantii (Sullivant's Milkweed)

Asclepias sullivantii (Sullivant's Milkweed)

80 (100)cm, Sullivant's Milkweed is an rare and threatened herbaceous species with upright stems with pale pink and cream flowers in a dense umbel above broad, opposite leaves. It is native of humus rich prairies in the USA. For any humus rich, well drained soil in a sunny spot. VII-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package 1010 € 4,99
Asclepias syriaca

Asclepias syriaca

120 (200)cm, the tallest hardy species with large sweetly scented rose and white star-flowers in ball-like flower heads. Easily cultivated in any rich, preferably sandy or rocky soil in full sun. We had an excellent seed crop this year, thus we would like to offer this species at an all-time low price! VI-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package 1277 € 0,99
seed package
Asclepias tuberosa (Butterfly Milkweed)

Asclepias tuberosa (Butterfly Milkweed)

90 (130)cm, Butterfly Milkweed is a herbaceous perennial with a creeping rhizome and upright stalks with linear leaves and terminal clusters of bright orange flowers. Native in rocky, sunny spots throughout central and eastern USA. For any rich, well drained soil in a sunny spot. Seeds from a certified wild collection in Montrose County, Colorado, USA at some 1.850m. VI-VII.
10 seeds per package.

price (plus Shipping Costs)
seed package 4179 € 4,99
seed package
Asclepias verticillata (Whorled Milkweed)

Asclepias verticillata (Whorled Milkweed)

40 (70)cm, Whorled Milkweed makes unbranched stems covered with narrow leaves, and a terminal cluster with several greenish white flowers. Native of prairie regions in the US. For any rich, well drained soil in full sun to partial shade. VI-IX.
10 seeds per package.

price (plus Shipping Costs)
seed package 3614 € 2,99
Asclepias viridis (Antelope-Horn Milkweed)

Asclepias viridis (Antelope-Horn Milkweed)

50 (80)cm, Antelope-Horn Milkweed is a herbaceous species with upright stems crowned with umbels of greenish-purple flowers above lanceolate to elliptic, alternate leaves. It is native of prairies and humus rich, open spots in woods in the USA (Nebraska, West Virginia, Florida and W Texas). For any humus rich, very well drained, slightly rocky soil in full sun. VII-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package 1002 € 2,99