How to Make Rhubarb Garden Spray

The leaves of Rhubarb make a useful repellent against the garden insects like mites, spiders, bugs, nematodes, aphids and all types of sucking insects. These garden pests obtain their food from the leaves of the plants in your backyard, destroying their natural look. Rhubarb Garden Spray is a natural pesticide to control the mentioned insects, which is easy to make and penny-wise project as well.

A word of warning: Although the Rhubarb Garden Spray will efficiently battle against the plant diseases and insects, but its leaves are toxic to humans and some animal – especially the dogs.

Preparation time: 10 to 15 minutes
Boiling time: 20 minutes to half an hour
Storage time: 24 hours
Utensil needed: Non-tin pot, chopping board, knife, bucket, spray bottle or watering can

– 1kg  (about 2.2lbs) rhubarb leaves
– 2 liters ( 67 fl. Oz) water


  • 1

    Take a large pot and place the fresh rhubarb leaves in it.

  • 2

    Pour in some mild or cold water until the rhubarb leaves are thoroughly covered.

  • 3

    Place the pot on the stove with medium-high heat and bring the water to boil.

  • 4

    Once the water starts boiling, reduce the heat of the stove to medium or medium-low level and let the mixture simmer for another 20 minutes to half an hour.

  • 5

    Turn off the stove, remove the pot carefully and drain the mixture.

  • 6

    Discard the rhubarb leaves and dilute one part of the solution with 9 parts of clean water to create Rhubarb Garden Spray.

  • 7

    Stir the mixture for few minutes until nicely mix up and then pour it into a watering can.

  • 8

    Spatter the Rhubarb Garden Spray onto the plants of your garden and enjoy garden bugs free environment.

    Note: It is better to consume this Rhubarb Garden Spray within 24 hours in order to get the best results.

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