The business in Dingwall, Ross-Shire, said Jones was impressed with the system and wanted to help the company establish itself as a national brand.
"It is fantastic news" says WoodBlocX boss Henry Blake. "We are a family business and Peter’s support is fundamental in helping us take our product nationwide."
WoodBlocX sustainably-certified pine blocks with recycled plastic dowels can be used to make raised beds, seats, greenhouse bases, pond surrounds and retaining walls and steps.
Jones said: "I was impressed with the WoodBlocX pitch and happy to be a partner in such an exciting and versatile product.
"With a bit of help and guidance from my team and I we can transform WoodBlocX into a household gardening brand."
Entrepreneur and businessman Peter Jones has interests in mobile phones, television, media, leisure, and property and became a tv celebrity after appearing in BBC 2’s Dragons’ Den.