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Archive for the Research Study Category

Styrofoam Cones – Do They Keep Roses Warm in Winter?

As winter approaches, we worry about our poor plants making it through the cold. All manor of wrapping devices are used to protect them and Styrofoam cones, also called rose cones, have become popular in recent years. Do these contraptions work? If they do, how much warmer do they keep your plants?

There is a lot of talk on the internet about Styrofoam cones. Many extension offices recommend them, and suppliers certainly tell you they work, but I was unable to find a single source of information that actually provided data to support the idea that Styrofoam cones keep plants warmer in winter.

So I decided to do some testing of my own.

Temperature changes with and without a Styrofoam Cone, by GardenMyths.com

Temperature changes with and without a Styrofoam Cone, by GardenMyths.com

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Growing Clematis From Seed

Online information about growing clematis from seed is limited. As a result, I decided to investigate clematis seed germination in more detail by running 120 test cases on a number of different types of clematis. This report summarizes known information and presents new information found as a result of this work.

How To Germinate Clematis Seed - Clematis Houldine, by Robert Pavlis

How To Germinate Clematis Seed – Clematis Houldine (not from seed), by Robert Pavlis

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Eggshells – Decomposition Study

The advice to add egg shells to the garden or compost pile is very common. In my last post I looked at some evidence that suggested eggshells do not break down in a compost pile or in soil – at least not very quickly. The one exception where eggshells do break down is very finely ground eggshells added to acidic soil .

How quickly do eggshells break down in soil? Is it 6 months or 5 years? Maybe it’s 100 years? No one seems to know. In this post I will describe a 6 year study that has been started to find out if eggshells decompose in that period of time.

Eggshells - Do They Decompose In The Garden 1

Eggshells – Do They Decompose In The Garden – supplies, by Robert Pavlis

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Eggshells – Do They Decompose In The Garden?

Lots of people add eggshells to the garden or compost pile. It is claimed that they add important calcium to the soil for plants. Is this true? How well do they decompose? What happens to them in a compost pile? Do they add any value to the garden?

Eggshells - Do They Decompose In The Garden

Eggshells that have been sitting in the garden for more than 3 years, by Robert Pavlis

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Pruning Trees and Shrubs – What is the Best Time?

Pruning trees and shrubs in late summer is NOT recommended because such pruning causes new soft growth that can’t harden off before winter. You will find this advice everywhere, but is it correct?

Pruning trees and shrubs

Pruning trees and shrubs – what is the best time?

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