Garden Myths - Learn the truth about gardening

Archive for the Birth of Myth Category

Compost Tea NPK Values

Compost tea is reported to be great for growing plants and some companies even call it a compost tea fertilizer. What is the NPK value of this magic potion?

I started this post about a year ago and at that time there were many products on the market but I could not find one that provided the Compost Tea NPK value. I checked again today and was surprised that the number of compost tea products available is down significantly. Maybe it was too expensive to ship all that water around the country? Maybe it did not work and people stopped buying the product?

Interestingly, the number of commercial DIY kits for making your own tea is up significantly. When you click on Google images for ‘bottles of tea’ you are taken to pages selling kits. Even with kits the same question needs to be asked. What is the NPK value of the tea these kits produce. Very few of the manufacturers I looked at provided such information, but many did say their compost ingredients were the best. Easy to say if you don’t give any data.

Even if you are not interested in compost tea – the following discussion will show you how companies are misleading consumers.

What is the NPK value of compost tea?

What is the NPK value of compost tea?

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Are Native Bees Dying?

Native bees are apparently in trouble. They are dying by the millions. We all need to plant more flowers to try and save the bees. Turns out that much of this is based on false information. We don’t actually know the status of most native bees.

In this post I will look at how this myth got started and discuss some real facts about native bees.

Are native bees dying? Bumblebee on flower

Are native bees dying? Bumblebee on flower

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Kamal Meattle – Plants and Air Purification

In 2014 I wrote a post called A Garden Myth is Born – Plants Don’t Purify Air, which has become one of my most popular posts. A recent comment on that post about a video by Mr. Kamal Meattle has prompted me to write today about another story related to plants purifying air.

Mr. Kamal Meattle has become well known for a short TED Talk video where he talks about converting an office building in New Delhi, into the cleanest building in India. His secret is the use of air purifying plants.

Plants cleaning the air in an office, desk designed by Julio Radesca

Plants cleaning the air in an office, desk designed by Julio Radesca

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Milk Fertilizer – A Myth is Born

A while ago I wrote about Milk As Fertilizer and concluded that although milk would add organic matter to a garden, it was no ‘magic bullet’. Since that report I have spent more time looking at the subject of milk fertilizer and tracked down how this myth was born. It a thriller full of deception and lies. Today I will dig deep into this myth and uncover some surprising facts. Then I will review the latest research on the subject.

Milk Fertilizer - a Myth is Born

Milk Fertilizer – a Myth is Born

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Anecdotal Evidence – Not Worth The Screen It’s Displayed On

Anecdotal evidence is everywhere in our daily lives. Most new products depend on it to make sales and most commercials use it to convince you to buy. In gardening, it is a very common way for people to get information about a problem. Go to any gardening social media site and ask about curing something. A dozen people will come back with different cures that they have tried – and THEY ALL WORK!

Baloney!

Why is anecdotal evidence not worth much? Why do we believe it so much? Good questions to ask if you are trying to understand why we have so many garden myths.

Anecdotal Evidence, Hostas don't need egg shells

Hostas don’t need egg shells, author’s garden – Aspen Grove Gardens

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