Narrowleaf Milkweed - Asclepias fascicularis - The Living Seed Company LLC

Narrowleaf Milkweed - Asclepias fascicularis

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Narrowleaf Milkweed is a gorgeous California native flower that is the sole source of food for the Monarch butteries. The butterflies lay their eggs exclusively on Milkweed plants, creating an opportunity for us to plant Monarch habitat!

Grows as a subshrub about 2' - 4' high with stunning fragrant flowers. These wildflowers are easy to grow and propagate through rhizomes. Known for their beautiful colors ranging in greenish white to deep purple, the Milkweed brings joy and life to every garden! Exuding a delicious vanilla scent, the milkweed also attracts other pollinators while bloom from June - August.

Also known as Mexican Whorled milkweed, this milkweed grows well in dry climates and will blossom from June - September.   This beautiful low maintenance, drought tolerant wildflower may be slow to grow the first year, as it sets its taproot deep into the earth.  In following years, it will grow more vigorous.

It is very important to plant locally native milkweed species.  Please learn which milkweeds are native to your region and consult this milkweed range maps from the Biota of North America Program’s (BONAP) North American Plant Atlas.

Support the Monarch population by planting your Milkweed seeds today!

If you live in California, this is the variety we recommend.  

  • Non-GMO
  • Perennial 
  • Sun: Full
  • Indoors: 8 weeks before last frost
  • Direct Sow: In the fall, or in the spring after cold stratification
  • Seed Count: 30
  • Plant Size: 3'-5'
    • Ornamental
    • Attracts pollinators
    • Open Pollinated 

    Growing Tips:

    Narrowleaf seeds must be stratified, if they are planted in the spring, for proper germination. 

    Instructions on cold stratification, to germinate seeds in the spring time.

    Plants may appear eaten, but that is the monarch caterpillars feasting. After initial blooming season, plants require minimal moisture. Fall time pruning will help it go dormant. Leave 1" stick.

    More info on how to create a monarch habitat.

    Seed Packet Instructions:

    Narrowleaf Milkweed - Asclepias fascicularis

    Consider including your garden to the Monarch Joint Venture for their monarch conservation initiatives! 

    Monarch conservation information – Xerces Society

    Report any sightings of Monarchs here