Green Manure Mix

For Natural Soil Regeneration and Long-Term Fertility

The Green Manure Mix was designed to restore soil health and structure while supporting the ecological transition toward more self-sustaining and resilient landscapes.
It is a balanced blend of legumes, brassicas, and grasses that enrich the soil, protect against erosion, and stimulate microbial life.
Ideal for community gardens, institutional lands, and ecological restoration sites, this mix prepares the soil to support lasting floral biodiversity.

🌾 Main Composition

• Yellow Sweet Clover (Melilotus officinalis) – Powerful nitrogen fixer; improves soil structure and aeration.

• Crimson Clover (Trifolium incarnatum) – Bright red flowering; attracts pollinators and enriches the soil.

• Magenta Clover (Trifolium rubens) – Hardy perennial that strengthens ground cover and fixes nitrogen.

• Ivory White Clover (Trifolium repens) – Resilient groundcover contributing to natural land regeneration.

• Hairy Vetch (Vicia villosa) – Climbing legume that increases organic matter and moisture retention.

• Mustard ‘Barbarossa’ (Sinapis alba var. Barbarossa) – Fast-growing brassica that improves soil texture and helps deter certain pests.

• Alfalfa (Medicago sativa) – Deep roots that break up compacted soil and enhance mineral availability.

• Radish Mix (Raphanus sativus) – Strong taproots that aerate heavy soils and break surface crusts.

• Oats (Avena sativa) – Hardy grass that rapidly covers soil and prevents erosion.

• Bean (Phaseolus vulgaris) – Nitrogen-producing legume that strengthens soil biodiversity.

🌍 Ecological Benefits

• Naturally regenerates degraded or compacted soils

• Fixes atmospheric nitrogen and improves soil fertility

• Protects against erosion and nutrient leaching

• Encourages microbial diversity and active soil life

• Can be used as a temporary green manure or integrated into ecological crop rotations

This mix reflects the vision of Semence Canada and Unifor: agriculture and land stewardship that are more autonomous, sustainable, and resilient, at the heart of Quebec’s energy and ecological transition.

🌱 A Partnership for Ecological Transition

As part of the energy and ecological transition movement, Semence Canada has partnered with the Canadian union Unifor to implement a pilot greening project in the Laurentians region.

This partnership aims to green living and working environments, restore local biodiversity, and demonstrate how nature can serve as a concrete driver of energy transition in Quebec and across Canada.

For this initiative, Semence Canada developed an exclusive range of in-house seed mixes, carefully designed and tested to adapt to diverse environments and climatic conditions:

• 🌾 All-Purpose Mix – Versatile, resilient, and suited to most Quebec soils and climates

• 🌿 Urban Mix – Formulated for parks, institutional grounds, rooftops, and urban green spaces

• 🌱 Green Manure Mix – Regenerates soils, improves structure, enhances water retention, and captures carbon

• 🍃 Temperate Mix – Ideal for mild or variable climates, promoting natural plant diversity

• ❄️ Nordic Mix – Specifically designed for the cold, rigorous climates of Quebec and Canada, composed of hardy species able to withstand prolonged frost and short growing seasons

These mixes—made from local, climate-adapted seeds—support ecological resilience and reduce the energy footprint associated with maintaining green spaces.

Together, Semence Canada and Unifor are laying the groundwork for a just and sustainable energy transition—where every seed planted becomes an investment in the future, for workers, communities, and the planet.