Narrow leaf milkweed seedling manual#
Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Swamp milkweed will often have multiple stems up to 2 m tall and it can have several stems coming from one single root crown (Ivey et al., 2003). Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Swamp Milkweed is a native perennial of the eastern and central United States and southern Canada (Manitoba, Quebec, and Nova Scotia). Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. It's very easy to grow in soils with with good drainage, even with no summer water.
The plant is deciduous in winter and will sometimes die back to the ground before reviving in the Spring, and is often covered with aphids, so often best to plant in less prominent spots in a garden. Narrowleaf milkweed or Mexican whorled milkweed is a flowering perennial sending up many thin, erect stems and bearing distinctive long pointed leaves which.
Milkweed gardeners should be prepared for the plant to be eaten by Monarch caterpillars, but will be rewarded by the presence of beautiful Monarch Butterflies. Milkweeds in general are the larval host plants for Monarch butterflies, and this species is probably the single most important host plant for Monarch butterflies in California. If you grow non-native milkweed varieties, you can buy new seeds/plants annually or you can overwinter in containers. This plant is common in the western United States and has the potential to become weedy. Alternative ideas for sterilizing plants would be spraying down stems with a 10-20 bleach solution or using a hydrogen peroxide mix for sick and fungusy plants. The fruits are smooth milkweed pods which split open to spill seeds along with plentiful silky hairs. It blooms in clusters of lavender or lavender-tinted white flowers which have five reflexed lobes that extend down away from the blossom. 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. About Narrow Leaf Milkweed (Asclepias fascicularis) 102 Nurseries Carry This Plant
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