Organise a car rental in Melbourne in March and you could be in for more treats than you'd bargained for.

The International Flower and Garden Show will take place from March 26 to 30, and it's one of the hallmark events of the Victorian calendar.

Whether you have a green thumb or not, this is a must-see event, as there will be many beautiful flowers in bloom.

It will take place in the World Heritage-listed Royal Exhibition Building and Carlton Gardens.

Join the more than 100,000 visitors at the event, which is the largest annual flower and garden show in the southern hemisphere, and over 500 exhibitors who will be showcasing a whole range of innovative products and services designed for both professional gardeners and amateurs.

The festival will also focus on the wonderful lifestyle Australia has to offer, with a focus on the outdoors. There will be plenty of landscape and floral features on offer, as well as a mouthwatering array of delicious food options and some spectacular garden retail products.

If that isn't enough to keep you busy, you could also sit back and relax with some of the great entertainment options on offer.

You could also enjoy some of the floral design workshops, or take a look at the showcase of floristry in the Great Hall of Flowers.

There, you will find a great selection of some of the best award-winning displays incorporating outdoor entertainment ideas, outdoor entertainment, floristry, gardens and landscaping.

You can see the creativity and passion that Australia's top floral and landscape designers have to offer.

The show will also feature a strong environmental message for gardening in the climate we live in.

See if you can discover some of the rare and unusual plants on offer, and you may even be able to find some innovative ideas for your garden.