Epsom Salt for Your Plants - Inside and Out

4 Materials
$3
5 Minutes
Easy

Did you know you could use Epsom salt for your outdoor plants and your houseplants? It says so right on the label!!

Here are four different ways to use Epsom salt to give your plants a boost and one way to keep pests off of your hosta plants.

1: Tomato Plant Booster

Add two Tablespoons of Epsom salt to one gallon of water

Shake

Feed your plants every two weeks with this booster for bigger tomatoes.

2: Pepper Plant Booster

Add one Tablespoon of Epsom salt to one gallon of water.

Pour into a spray bottle.

Spray directly onto the plant every two weeks and you'll yield more peppers per plant.

3: Hosta Pest Remover

Combine one cup ammonia and one cup Listerine original mouthwash.

Add one cup Epsom salt and stir until salt is dissolved.

Add one cup lemon Ajax dish soap. DO NOT STIR IN.

Pour mixture into a spray bottle.

Spray hosta, wetting the leaves.

Repeat as often as necessary.

4: Indoor Plant Booster

Add two Tablesoons of Epsom salt to one gallon water

Water your houseplants once a month.

5: Give Transplanted Plants a Boost

Fill the planter pot with potting soil halfway to the rim.

Add a pinch or two of Epsom salt.

Combine salt into the soil. You don't want the plant to directly touch the salt.

Plant the new transplant as you normally would.

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Have a question about this project?

3 of 246 questions
  • Sharon Folsom
    Sharon Folsom
    on Apr 14, 2020

    Can You use Epsom Salt on Rose Bushes.

  • Sharrey
    Sharrey
    on May 21, 2020

    what do you suggest could be used on a fruit tree with fungus (Black spots on fruit).

    • Mary Russell
      Mary Russell
      on Oct 24, 2020

      Your university agriculture extension agent has so much free help for all things growing and it is one of the most underutilized resources out there.I am always trying to get people to just go in to their local office for a visit.

  • Sandy
    Sandy
    7 days ago

    Can I use Epsom salt water on my cacti, spray or water???

Join the conversation

2 of 329 comments
  • Tonya
    Tonya
    on Nov 13, 2020

    TFS!!!!

  • Liz
    Liz
    on Jan 16, 2021

    Any kind of Epsom salt? I have Lavender scent is this safe to use?

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