Narrow-leaf Milkweed
Asclepias fascicularis
Also listed as Asclepias fasciculata
Climate Match for your location
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A native California milkweed with narrow, linear leaves and clusters of small pink to white flowers that attract monarch butterflies and other pollinators. Extremely drought-tolerant once established and requires minimal maintenance, making it ideal for water-wise gardens and wildflower meadows.
Why grow it
Narrow-leaf Milkweed is better suited than many Asclepias species to semi-arid and intermountain regions due to its notably lower water requirements once established. Unlike the broader-leaved milkweeds, its linear foliage makes it a useful visual complement in plant communities with fine-textured natives. It is a reliable monarch larval host across its range and establishes more quickly than some competing milkweed species in well-draining soils.
Watch out for
Plants may take two full seasons to reach mature size and full flowering, so patience is warranted during establishment. In areas with consistently moist summers or poor drainage, root rot can occur; amending heavy soils or providing raised beds improves outcomes. Seedlings can be slow to germinate without stratification, so cold moist pre-treatment over winter typically improves germination rates if seed propagation is attempted.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Apocynaceae
Native to the United States
Native Range
California and northwestern Mexico
Native to: California, Idaho, Nevada, Oregon, Washington
Seasonality
Bloom Season
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
A native California milkweed with narrow, linear leaves and clusters of small pink to white flowers that attract monarch butterflies and other pollinators. Extremely drought-tolerant once established and requires minimal maintenance, making it ideal for water-wise gardens and wildflower meadows.
Climate Match for your location
See how well Narrow-leaf Milkweed grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Narrow-leaf Milkweed is better suited than many Asclepias species to semi-arid and intermountain regions due to its notably lower water requirements once established. Unlike the broader-leaved milkweeds, its linear foliage makes it a useful visual complement in plant communities with fine-textured natives. It is a reliable monarch larval host across its range and establishes more quickly than some competing milkweed species in well-draining soils.
Watch out for
Plants may take two full seasons to reach mature size and full flowering, so patience is warranted during establishment. In areas with consistently moist summers or poor drainage, root rot can occur; amending heavy soils or providing raised beds improves outcomes. Seedlings can be slow to germinate without stratification, so cold moist pre-treatment over winter typically improves germination rates if seed propagation is attempted.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Apocynaceae
Native to the United States
Native Range
California and northwestern Mexico
Native to: California, Idaho, Nevada, Oregon, Washington
Seasonality
Bloom Season
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
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