Starting Monday next week, Gardening 4 Dummies will be hosting a new series on Extreme and Unusual Cacti. Cacti are an unusual group of plants anyway but in their group are some beautiful, ugly, poignant and disturbing plants that reach the extremes.

We'll take you across the globe in search of some of the whackiest and interesting cacti and give you tips on how to grow them and take care of their needs.

If you have any unusual cacti growing in your garden why not slip us a photo and we'll add it to the list. Tell us why they're unusual and the story behind how they ended up in your garden.

See you back here on Monday!