Category

The No Grow List

Welcome to The No Grow List, where we spotlight plants that pose serious risks to gardens, allotments, and the wider environment. Each article details a plant that you should avoid planting — whether because it’s invasive, poisonous, or damaging to infrastructure.

In these guides you’ll learn:

How to identify problem plants like Japanese Knotweed and Giant Hogweed

Why they’re dangerous — to you, your garden, or your health

Legal restrictions, disposal advice, and safe alternatives

At Northern Polytunnels we believe in growing wisely. These plants don’t belong in your careful growing plans. Browse the list to make sure your plot is free of danger — and always choose crops that bring you joy, not risk.