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Simon Whittaker House of Deadleg Illustration & Design

Poly4 fertiliser brand development

Published March 6, 2023

Towards the beginning and end of my previous in-house design role I was heavily involved in developing the branding for the Poly4 family of fertilizer products. The below images are mostly from the latest round, although there is a peek at some of the earliest logo development from the inital branding concepts. The majority of this work went unused, although some elements were retained going forward.


The latest work was all about evolving and softening the logo – changing the text to lowercase and removing the cuts to emphasising the Yorkshire rose mark – while retaining the same brand typeface and colours. There was also lots of exploration around different packaging options to replace the plastic jars previously used to distribute samples at roadshows, etc.

Logo development for Poly4

As part of the latest rebrand there was a desire to visually represent the product's journey from mine to plate, so I developed a set of six icons to represent the different stages of the product lifecycle that could be used as a visual device in different applications, depending on the story being told (grow for crop trial data-sheets, etc).

The Poly4 story icon development

Additionally, I created a Processing program to make randomised patterns from the icons and different product colour palettes so they could also be used as texture or decoration.

Generated POLY4 brand pattern

Poly4 strapline development concepts

I'd also worked on a previous redesign project during the product's original development. As the brief was fairly open I was able to explore various different options, and although much of this work also went unused, one thing that was kept and carried over into the chosen slution was the green colour that is still in use today.

Poly4 branding/logo development and early concepts

POly4 branding/sample label concepts

Poly4 branding/business card concepts

Poly4 bulk bag branding concepts


“Working with Simon to create a custom character was an absolute joy. He listened closely to our ideas, added his own fun, colourful creativity and brought the character to life in a way that exceeded our expectations. His quirky style and professional approach made the whole process seamless. We couldn’t be happier with the result.”

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Blue Raptor

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