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Hand holding a light tuft of white milkweed floss in a sunny field of yellow flowers under a blue sky.

Mission

Our mission: protect monarchs and secure their survival.

Their caterpillars eat only one plant: milkweed. Where it disappears, monarchs have nowhere left to lay their eggs. We give this plant value again so farmers grow it, and monarchs find places to breed, field after field.

Monarch butterfly with its orange and black wings spread, resting on green milkweed leaves.
Person in winter wearing a grey beanie and a dark grey heathered Lasclay neck warmer insulated with milkweed floss, pulled up over the face against the cold.

How we do it

We create products, processes and manufacturing technologies that show milkweed's exceptional properties. By creating demand for this unique fibre, we keep it in cultivation and multiply habitats for monarchs and other pollinators.

Silk escapes from a ripe pod

Where the insulation comes from

The heart of our products, the milkweed floss insulation, comes from here. Milkweed is grown by farmers in Québec, in several regions: Capitale-Nationale, Charlevoix, Bas-Saint-Laurent, Lac-Saint-Jean and Chaudière-Appalaches. The pods are harvested in the fall, once the monarchs have already left for Mexico, and the floss is turned into insulation in Québec.

That is the step we keep here, because it is what gives the plant its value in the fields. Final assembly of most finished products happens with partners abroad, mainly in Tunisia: we explain why on our Transparency page.

Visit the fields
A handful of milkweed silk
In the middle of the flowering field

Keeping fields, planting new ones

A plant that sells is a plant farmers keep. By buying our growers' harvest every fall, we give them a reason to keep their milkweed fields instead of converting them.

We also work to plant more. Our planting service sets up native milkweed plots on landowners' property in several regions of Québec, and we buy back the pods every fall. Our seeds, first slipped into orders as a gift, grew into a national planting campaign, in its fifth year in 2026: about 10 million seeds distributed across North America. The more milkweed there is, the more places monarchs have to lay their eggs.

Plant milkweed
Milkweed covers the field to the forest edge
Pair of black Lasclay mittens on a snowy log, insulated with milkweed floss for winter

Our values

At Lasclay, our values guide every decision and every move:


Autonomy: We cultivate initiative and creativity, building our own solutions to meet the particular challenges of milkweed.

Impact: We aim for concrete results that transform our industry and restore biodiversity, making a real difference for our employees, our customers and the planet.

Generosity: Sharing openly is how we build trust and a strong team spirit. Generosity sits at the heart of our relationships with colleagues, customers and partners.

Passion: Passion keeps us curious, committed and persistent. It feeds our creativity, and that energy is what lets us take on challenges with enthusiasm.

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© 2026 Lasclay.
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