Narrowleaf milkweed is a perennial flower native to parts of the western U.S. Plant seeds during the cool season of Zones 9 and 10. Starting Narrowleaf Milkweed Seeds To use the website as intended please  Start by filling your container with any seed-starting or high-drainage potting medium (typically cactus mixes or anything with added perlite, including TPF’s own custom mix). Mexican whorled milkweed, Narrow leaf milkweed Asclepias fascicularis, a dicot, is a perennial herb that is native to California, is also found outside of California, but is confined to western North America. It tends to go dormant in the winter and regenerate the next year. across (10-12 cm), of lavender and white, starry flowers from early summer to fall. By planting milkweed in your own garden, you can help reverse the fortune of these beautiful insects! Nodding milkweed (Asclepias glaucescens) 13 Habitat: Along stream beds and dry rocky slopes in open pine, juniper, or oak woodland canyons Tolerates Saline Soil. It is a perennial with 3' tall stem and large (but narrow) five inch leaves, and a five inch or so flower cluster. Plant Distribution. Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. Some seeds germinate in as little as 2 weeks after planting, but others in the same bed may continue to germinate for 1-2 months after that. Unlike Tropical Milkweed, which retains its foliage all year, Narrow-leaf goes completely dormant in winter. For instance, plants in the milkweed family, Asclepiadaceae, (don't let the name intimidate you), secrete a milky sap (except for Butterfly Milkweed) and opposite or sometimes whorled leaves. When the seed pods open, they reveal seeds with long, silvery-white, silky hairs. More stems will be produced each year. Narrow Leaved Milkweed - Asclepias fascicularis a perennial, is one of four species of Milkweed found in the Santa Monica Mountains, grows in grassland habitats and flowers from late May into the first days of Fall. Four species of native milkweed are found in most states: the Whorled Milkweed, Common Milkweed, and Swamp Milkweeds, and Butterfly Weed. Grows as a subshrub about 2' 4' high with stunning fragrant flowers. It is a ‘must-have’ for butterfly gardens. May self-seed if seed pods are not removed prior to splitting open. The blooms occur on upright thin stems clad with long, narrow, pointed leaves. from the main range of the species. Growing Instructions: Start Narrowleaf Milkweed seeds outdoors in the spring after the danger of nighttime freezing has past. Check these Great Plant Combination Ideas with Asclepias, A Sparkling Summer Border Idea with Easy-to-Grow Perennials, A Pretty Duo to Try: Asclepias and Geranium, A Pretty Duo to Try: Asclepias and Salvia, A Spectacular Summer Planting Idea with Dahlia, Zinnia, Chinese Aster and Ammi visnaga, A Four-Season Border with Evergreen Conifers and Japanese Maples, A Lovely Border Idea with Achillea, Agapanthus and Grasses. Our informal natura l stratification trial with showy (milkweed) and narrow leaf milkweed (A. fascicularis) in southern Oregon revealed that seeds began to germinate after Join now and start creating your dream garden! If the plant is broken or pierced an alkaloid rich milky sap will flow freely. Asclepias fascicularis - Narrow Leaf Milkweed (Seed) $5.00 Excl. While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. Milkweed (Asclepias) Milkweed are beautiful American wildflowers and delightful garden plants. The description of these plants has been written based on numerous outside resources. This easy to grow plant is often part of wildlife gardens and restoration projects where it can be planted from seed to mix with native grasses and wildflowers. For propagating by seed: No treatment. Keep the soil evenly moist until the seeds germinate in 10 - 20 days. tax In stock (18579) PLEASE PLANT RESPONSIBLY Please protect the delicate balance of our native ecosystems by not sowing seeds in parks and nature preserves or wilderness areas. Soil PH: 6.0 - 8.0, Butterfly Gardens, Deer Resistant, Bird Gardens, Works well with a wide variety of other plants, but is best used where its winter leaf loss and summer consumption by caterpillars will not be the center of attention. The corona (circle of petals around the center of the flower) contains 5 hooded forms facing inwards. Caption: Narrow-leaf Milkweed (Asclepias fascicularis) is a native species that grows on our local hillsides and is an excellent foodplant for Monarch butterflies. Asclepias fascicularis (narrow-leaved milkweed) Asclepias speciosa (showy milkweed) A profile of each of these species includes descriptions of flowers, leaves, and seed pods, accompanied by photos and distribution maps. It is a perfect plant in the native garden or just to colonize a vacant field. Narrowleaf milkweed or Mexican whorled milkweed is a flowering perennial sending up many thin, erect stems and bearing distinctive long pointed leaves which are very narrow and often whorled about the stem, giving the plant its common names. The butterflies lay their eggs exclusively on Milkweed plants, creating an opportunity for us to plant Monarch habitat! Narrow-Leaf milkweed This California native milkweed is critical in the life-cycle of the monarch butterfly whose larvae feed on the foliage. Narrow Leaf Milkweed Asclepias fascicularis Asclepias fascicularis Add to plant list Added Narrowleaf milkweed or Mexican whorled milkweed is a flowering perennial sending up many thin, erect stems and bearing distinctive long pointed leaves which are very narrow and often whorled about the stem, giving the plant its common names. Great for a bird garden and a butterfly garden. The leaves are narrow and grow in a whorled pattern on stems that reach from 2-3′ tall. A Fabulous Garden Retreat where to Relax! It is dormant in winter. Pick a location with full sun and prepare soil for good drainage, if needed. Milkweed plants are critical to the monarch butterflies survival, whose population in North America has plummeted by 90% in the last 20 years. Asclepias fascicularis (Narrowleaf Milkweed) is a flowering perennial boasting attractive clusters, 4-5 in. Narrow leaf milkweed is a robust perennial native to many habitats and conditions across all of California. Narrow-leaf Milkweed is perennial plant, meaning that it goes dormant for part of the year. The cardiac glycosides are potentially poisonous to humans. Asclepias fascicularis is a species of milkweed known by the common names narrowleaf milkweed and Mexican whorled milkweed. Narrow-leaved Milkweed has narrow leaves, hence the name, and a wide native range. © California Native Plant Society. 12. The flowers are a great source of nectar for butterflies, hummingbirds, bees, and other beneficial insects. Zones 2-8 Plant in the spring after the danger of frost is gone. Adaptable to high or low water, heat, all types of soils (including clay), this is one of the easiest and fastest to establish of the milkweeds - A great choice for the flower garden and for natural settings. The hoods are also greenish white. narrow-leaved milkweed Habit: rhizomatous perennial producing tall, upright stalks with narrow linear leaves 6 in (15cm) long either in whorls or oppositely placed around the rigid stem. Asclepias stenophylla (narrow-leaved milkweed) is characteristic of dry hill prairies in the Lower Great Plains region.It was not known to occur in Minnesota until 1978 when a single population was discovered near Hokah in Houston County (The Blufflands Subsection).The Minnesota population is separated by about 500 km (310 mi.) There are 5 separate sepals (petal-like leaves) and 5 fused petals. About Narrow Leaf Milkweed (Asclepias fascicularis) 48 Nurseries Carry This Plant Add to My Plant List; Narrowleaf milkweed or Mexican whorled milkweed is a flowering perennial sending up many thin, erect stems and bearing distinctive long pointed leaves which are very narrow and often whorled about the stem, giving the plant its common names. The blooms occur on upright thin stems clad with long, narrow, pointed leaves. This milkweed is hardy in zones 6-10 and is an herbaceous perennial. Attractive and easy to grow, they shine in many gardens. The leaves of Narrowleaf Milkweed are long (up to 5 inches) and narrow, making this species more delicate appearing than other Milkweeds. 3*, 7*, 8*, 9*, 10, 14*, 15*, 16, 17, 18*, 19, 20, 21, 22, 23, 24, Found in many settings including valleys, foothills, canyons, mountains, often dry areas, occasionally in wetlands, Annual Precipitation: 3.8" - 117.4", Summer Precipitation: 0.13" - 3.60", Coldest Month: 23.0" - 59.2", Hottest Month: 42.6" - 87.9", Humidity: 0.47" - 40.28", Elevation: -180" - 11144", Creative Commons Attribution-ShareAlike License, PRISM Climate Group, Oregon State University. Asclepias fascicularis Scientific classification Kingdom: Plantae Clade: Tracheophytes Clade: Angiosperms Clade: Eudicots Clade: Asterids Order: Gentianales Family: Apocynaceae Genus: Asclepias Species: A. fascicularis Binomial name Asclepias fascicularis Dcne. Milkweeds contain cardiac glycosides, naturally occurring drugs that increase the force of heart contraction and have been used to treat heart conditions. Plant seeds 1/8" deep and 18” apart, using 3 seeds per hole. Create a membership account to save your garden designs and to view them on any device. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas. Narrow-Leaf Milkweed is a gorgeous California native flower that is the sole source of food for the Monarch butteries. But they pose the most danger to grazing animals. We use cookies on this website, you can read about them here. Narrow-Leaf Milkweed and Una, Dos, Tres—the Monarch Trio Last winter we purchased five one-gallon pots of narrow-leaf milkweed (Asclepias fascicularis) from CNPS East Bay’s Native Here Nursery (NHN) in Tilden Regional Park and planted a milkweed patch in our back garden. Narrowleaf Milkweed Facts Supports Monarch Butterflies Native to much of United States Prefers full to part sun 1'- 2' tall with narrow leaves and pale pink flowers when mature Dry-Moist water requirements Sow Late Summer to Mid-winter. All rights reserved. Narrow leaf milkweed is the most favored larval Monarch butterfly host in California. All through summer and into fall the plant is covered with flowers. It is a virtually carefree perennial that has light green narrow leaves on 3' stalks, with clusters of pinkish white flowers in summer. However, it should be noted that not all milkweed species are equally toxic. 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