California Native Narrow Leaf Milkweed (Asclepias Fascicularis) Seeds for Monarch Butterflies.
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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. It blooms in clusters of lavender or lavender-tinted white flowers which have five reflexed lobes that extend down away from the blossom. The fruits are smooth milkweed pods which split open to spill seeds along with plentiful silky hairs. This plant is common in the western United States and has the potential to become weedy.
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. 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. 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.
It's very easy to grow in soils with with good drainage, even with no summer water.
Caution: Milkweed contains naturally occurring toxicity. No part of the plant should be eaten or made into tea or medicine. Gardeners with pets or children with a propensity to eat plants should take this into consideration.
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Product Questions
Do you accept returns or replacements?
Answer: We do not accept returns or send replacement plants. If your plant arrives significantly damaged, email emeraldhouseplants@gmail.com within 24 hours of the USPS tracking status changing to “Delivered.” Include your order number and photos of the plant and packaging. We review each claim individually and may offer a partial refund or, when the circumstances warrant it, a full refund of the affected plant’s price. A full refund is not automatic. [Read our full Return & Refund Policy.]
Will my plant look exactly like the photos and video?
Answer: You’ll receive the listed variety and pot size, selected from our current plants, but each plant varies in fullness, color, and variegation. Some listings include a clearly labeled mature-plant photo to show how the plant may look as it grows; it does not show the size you’ll receive.
When available, the batch video gives you the best look at the plants currently being selected for orders. We date these videos when possible, but plants continue to grow, so yours may be larger or look a little different by the time it ships. If a listing has no batch video, email emeraldhouseplants@gmail.com before ordering to request an updated look.
Shipping Questions
When will my order ship?
I usually ship within 2 business days, but please allow up to 5 business days for processing. Weekends and U.S. federal holidays do not count as business days. You’ll receive tracking when your order ships. If shipping is temporarily paused, the next shipping date will be posted on the website. [Read our Shipping Policy.]
How will my plant(s) ship?
Your plant ships rooted in soil in its nursery pot. We secure it inside a corrugated shipping box to reduce movement during transit.
What should I do when my plant arrives?
Answer: Unbox it promptly and check the plant and soil. If soil spilled but the plant is intact, gently return it to the pot. Check the soil before watering, and place the plant in light appropriate for its species. Give it time to adjust before repotting or fertilizing; repot when the plant needs it and is actively growing, rather than by a fixed season.
A little leaf damage can happen during shipping. If your plant arrives significantly damaged, email emeraldhouseplants@gmail.com within 24 hours of the USPS “Delivered” scan with your order number and photos of the plant and packaging.



