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Using Magnesium Sulfate (Epsom Salts) on Houseplants

Leta asks which houseplants benefit from magnesium sulfate for health, or if it should be avoided.

Expert Answer: Use on any blooming plant to promote more, stronger, longer-lasting blooms. Non-bloomers: 1 tsp per 8 inches pot diameter in April. Bloomers: 1 tsp per 4 inches pot diameter in April and again in August.

House Plants: Houseplant Fertilizing: Frequency, Types, History, and Trusted Resources; Houseplants Struggle After Switching to Gas Forced‑Air Heat; Reviving Frost-Damaged Houseplants: What to Do After a Cold Snap; Using Magnesium Sulfate (Epsom Salts) on Houseplants; Strawberry & Angel Wing Begonia Watering: Surface Dry, No Saucer Water; Using Gray Water (Dishwater) for Plants During Drought; When to Move Houseplants Outdoors: Temperature and Acclimation Guide; Best Low-Light Houseplants for Busy Homeowners; Moth Orchid Reblooming & Brown Leaf Tips on Houseplants; Plants for the House & Garden: Bridging Indoors & Outdoors for Year-Round Enjoyment

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