Asclepias cordifolia
HEART LEAF MILKWEED
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Asclepias cordifolia is a species of milkweed commonly called heart-leaf milkweed or purple milkweed (a common name shared with another milkweed, Asclepias purpurascens). It is native to the western United States (California, Nevada, Oregon). Heart-leaf milkweed was valued by the Native American Miwok tribe for its stems, which they dried and processed into string and rope.
Heart-leaf milkweed is a perennial that grows to a height of 24", 60cm, with dark red-purple flowers. The large opposite leaves are cordate, or heart-shaped. The plant grows in open or shaded woodland, often on rocky slopes and in mixed coniferous forest. The milkweeds are named for the milky sap which exudes from the plant's stem. It blooms from May to July.
Monarch butterfly caterpillars are commonly found on all the milkweeds, including the heart-leaf milkweed. Even after the caterpillar has metamorphosed into a butterfly, the alkaloids they ingest from the plant are retained in the butterfly, making it unpalatable to predators.
Seeds are very rare and in limited supply!
Type: Perennial
Height: 24", 60cm
Location: Sun or part sun
Hardiness zones: 7-10
Seeds per packet: 3
Sow just under the surface of the soil and water in. Temperature 20-22 C (68-72 F) for 4 weeks. They may be growing at this point. If they have not germinated after 4 weeks then a cooling period is required. Cover them with plastic and place in a fridge for 4 weeks. Be sure they stay moist. After the stratification period they are then brought back to room temperature for them to germinate. Germination can be 30-60 days after the warming period, though some can take longer.
Ornamental use only. These seeds and or plants are poisonous.
Asclepias cordifolia
HEART LEAF MILKWEED
- Unit price
- / per
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Asclepias cordifolia is a species of milkweed commonly called heart-leaf milkweed or purple milkweed (a common name shared with another milkweed, Asclepias purpurascens). It is native to the western United States (California, Nevada, Oregon). Heart-leaf milkweed was valued by the Native American Miwok tribe for its stems, which they dried and processed into string and rope.
Heart-leaf milkweed is a perennial that grows to a height of 24", 60cm, with dark red-purple flowers. The large opposite leaves are cordate, or heart-shaped. The plant grows in open or shaded woodland, often on rocky slopes and in mixed coniferous forest. The milkweeds are named for the milky sap which exudes from the plant's stem. It blooms from May to July.
Monarch butterfly caterpillars are commonly found on all the milkweeds, including the heart-leaf milkweed. Even after the caterpillar has metamorphosed into a butterfly, the alkaloids they ingest from the plant are retained in the butterfly, making it unpalatable to predators.
Seeds are very rare and in limited supply!
Type: Perennial
Height: 24", 60cm
Location: Sun or part sun
Hardiness zones: 7-10
Seeds per packet: 3
Sow just under the surface of the soil and water in. Temperature 20-22 C (68-72 F) for 4 weeks. They may be growing at this point. If they have not germinated after 4 weeks then a cooling period is required. Cover them with plastic and place in a fridge for 4 weeks. Be sure they stay moist. After the stratification period they are then brought back to room temperature for them to germinate. Germination can be 30-60 days after the warming period, though some can take longer.
Ornamental use only. These seeds and or plants are poisonous.