I've relied on Epsom salt—magnesium sulfate—for over a decade in my garden. This time-tested mineral supplement, used for centuries, offers proven benefits beyond health applications, supercharging plant growth.
Today, I'll share the striking difference it makes. These vegetable patches were planted simultaneously, watered identically, with no other amendments. The Epsom salt plot thrives noticeably:


Here's another clear example:


The evidence is undeniable: Epsom salt delivers a natural boost to vegetable gardens. Plants grow more vigorously, though they can survive without it—they simply won't reach their full potential.
Its garden applications extend further. As a seasoned gardener, here's how I use it effectively:

Houseplants and orchids flourish with Epsom salt. Dissolve 1 teaspoon in 3 liters of water and apply every 2-4 weeks.

It's an excellent natural fertilizer. Spread 1 cup per 10 m² plot and incorporate into soil before planting or sowing.

Apply 1 tablespoon around tomato stalks every 2 weeks. It enhances calcium and nutrient uptake—peppers respond equally well.

Sprinkle 1 teaspoon at the base of each rose every 2 weeks for vibrant blooms.

Azaleas and rhododendrons thrive on it. Mix 1 tablespoon in irrigation water for 10 m²; apply to roots every 2-4 weeks.

Lawns green up dramatically. Use 1.5 kg per 25 m² or 3 kg per 50 m², ideally in spring.

Apply 2 tablespoons to the root zone of a 9 m² area every 4 months.
Plants, like us, need key nutrients to thrive. Epsom salt provides magnesium for robust roots, chlorophyll production, and prevents yellowing or weakness. I sprinkle it at plant bases for bountiful veggies.
Epsom salt is magnesium sulfate, essential for root strength and photosynthesis. Professional gardeners and landscapers recommend it widely. Dosages are guidelines—adjust for your soil and plants. In my garden, it's delivered consistent results for years.
Convinced? I recommend high-quality options like this:

It's readily available at supermarkets and garden centers, including Intermarché, Auchan, Castorama, Leclerc, Jardiland, Monoprix, Super U, Biocoop, La Vie Claire, Brico, Botanic, Naturalia, Rustica, Migros, Carrefour, Gamm Vert, Cora, Jean Coutu, and Walmart (Canada).
Look in the garden section for bulk packs (e.g., 5kg). Also called magnesium sulphate or English salt—all suitable for gardening (not nigari, which is magnesium chloride). Pharmacies offer food-grade versions for baths or health uses; consult a doctor for those.