Narrowleaf Milkweed

Narrowleaf milkweed is the most widespread milkweed in California. Perhaps it is because it can tolerate a wide range of temperatures and soil.

Easily identified by its long, wispy leaves, this milkweed provides ornamental value as well as life support for monarch butterflies and their caterpillars.

Botanical name: Asclepias fascicularis

Other names: Narrow leaf milkweed

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Narrowleaf milkweed is a small flowering shrub that reaches 3-4 feet in height. Thin and tall stems grow upright.

Deep green leaves are long and narrow, which helps them to preserve moisture.

Tiny, numerous pink-white flowers when in bloom. They grow in clusters at the top of the stems.

Followed by seed pods containing seeds covered in white tufts.

Narrowleaf milkweed is a shrubby plant that has an informal, natural look.

Plant directly in the ground for a meadow-like look. Plant in a container to keep it looking tidy.

Drought and heat tolerant.

Supports the local bee and butterfly population in California- especially monarchs.

In most areas in California, it will become dormant in the winter and come back in the spring. In areas with warm winters like in Palm Springs, cutting it back before the weather warms up will help it grow back with vigor.

Narrowleaf milkweed is from warm and dry areas of the west coast in USA.

Soil: Loose, well-draining soil.

Temperature: Can withstand temperatures down to 10 degrees for a short period of time.

Water: Occasional, deep watering. Allow the soil to completely dry out between waterings. Either use a moisture meter or stick your finger through the soil to gauge the moisture level. It’s better to err on the side of underwatering than overwatering.

Sun: Full sun. Partial shade is ok in Palm Springs area.

Pests: Narrowleaf milkweed is mostly pest-resistant. May attract aphids, especially during bloom and/or after it gets watered heavily. Blast them off with water if the infestation is light. Do not use chemical pesticide since it can harm the caterpillars that munch on the milkweed.

Whenever using any kind of pesticide, be aware that it can damage the plant if the temperatures are in the 80s or above.

Signs of overwatering: Wilting stems, root rot.

Signs of too little water: Shriveling, drying skin, dropping leaves

Signs of too much sun: Burning, scarring, fading color

Signs of too little sun: Etiolation

Once the milkweed has grown a seed pod, wait for it to mature and then open up. Extract seeds and plant in moist soil.

How much does Narrowleaf Milkweed cost?

At our nursery, narrowleaf milkweed costs $20 for a 5-gallon container and $75 for a 15-gallon container.

Prices are subject to change. Please contact us for the most up-to-date information on pricing. We may have larger sizes available. We provide installation services locally at a separate cost.

Does Narrowleaf milkweed attract butterflies?

Yes, it attracts butterflies, including monarch butterflies, and will serve as a home and feeding station for their caterpillars.

Is Narrowleaf milkweed easy to grow?

Yes, narrowleaf milkweed is easy to grow in dry and warm regions, such as the Coachella Valley. It requires minimal care.