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HEART LEAF MILKWEED
Asclepias cordifolia

SKU: 304-003
Regular price 16.99
Unit price
per

Description

We are finally able to offer these seeds again, after a long-time of being out of stock!

Heart-leaf milkweed is a perennial that grows to a height of 0.3 to 0.6 m (1 to 2 ft), with dark red-purple flowers whose hoods are slightly elevated above the base of the corolla. The flower structure is unusual—it has five stamens fused into a column, with five circular attachments called 'hoods', and an anther head surrounding the large stigma at the flower's center. The fruit (photo at left) is a follicle with many flat seeds that have silky hairs which disperse easily in the wind. The large opposite leaves are cordate, or heart-shaped. The plant grows in open or d 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: Hardy perennial

Height: 60-90 cm (24-36 in)

Location: Sun or part sun

Hardiness zones: 7-10

Seeds per pack: 3

Note: Ornamental use only. These seeds and/or plants are poisonous.

Availability: If these seeds are showing out of stock, we strongly recommend joining our wait list, as these seeds have a very shorty viability window, and this helps ensure you get the freshest seeds possible! If they are available, they will only be available for a limited time.

Germination: Start these seeds right away to preserve viability, no matter the time of year. Sow the seeds just under the surface of a sterile seed-start mix, and water in. Then cover them with plastic and place in a fridge for 5-6 weeks. Be sure they stay moist. After the cold stratification period they are then brought back to room temperature for them to germinate. Germination is generally within 60 days after the warming period, though they could take a few months. If possible, the best location for sowing in March, April and May, is in cold frame or a cold greenhouse where they will receive the cold period and fluctuating temperatures naturally.

HEART LEAF MILKWEED
Asclepias cordifolia

SKU: 304-003
Regular price 16.99
Unit price
per
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Description

We are finally able to offer these seeds again, after a long-time of being out of stock!

Heart-leaf milkweed is a perennial that grows to a height of 0.3 to 0.6 m (1 to 2 ft), with dark red-purple flowers whose hoods are slightly elevated above the base of the corolla. The flower structure is unusual—it has five stamens fused into a column, with five circular attachments called 'hoods', and an anther head surrounding the large stigma at the flower's center. The fruit (photo at left) is a follicle with many flat seeds that have silky hairs which disperse easily in the wind. The large opposite leaves are cordate, or heart-shaped. The plant grows in open or d 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: Hardy perennial

Height: 60-90 cm (24-36 in)

Location: Sun or part sun

Hardiness zones: 7-10

Seeds per pack: 3

Note: Ornamental use only. These seeds and/or plants are poisonous.

Availability: If these seeds are showing out of stock, we strongly recommend joining our wait list, as these seeds have a very shorty viability window, and this helps ensure you get the freshest seeds possible! If they are available, they will only be available for a limited time.

Germination: Start these seeds right away to preserve viability, no matter the time of year. Sow the seeds just under the surface of a sterile seed-start mix, and water in. Then cover them with plastic and place in a fridge for 5-6 weeks. Be sure they stay moist. After the cold stratification period they are then brought back to room temperature for them to germinate. Germination is generally within 60 days after the warming period, though they could take a few months. If possible, the best location for sowing in March, April and May, is in cold frame or a cold greenhouse where they will receive the cold period and fluctuating temperatures naturally.