Petunias are a brilliant addition to any garden, with their vibrant hues and ability to bloom from spring until autumn or the first frost.

Whether you've hung them in baskets or used them to fill gaps in flowerbeds, they add a lovely summery feel to your outdoor space. However, like all plants, they can wilt and die if not properly cared for.

Fortunately, there's a simple way to make them bloom bigger again, even after they've died off.

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According to gardening experts at The Spruce, deadheading your petunias is the ideal way to keep them healthy and ensure they continue producing blooms.

For many flowering plants, this task needs to be done just once or twice over the blooming period. But when it comes to petunias, they can benefit significantly more if you do it more frequently, reports the Express.

In fact, the experts say that petunias will flower even more if you deadhead them regularly between spring and autumn.

The process of deadheading petunias is very straightforward. All you need to do is examine your plant and identify any dead or wilting flowers.

Then, use your fingers or a pair of secateurs to remove the blooms.

The amount of deadheading your plants will require depends entirely on which variety of petunias you're cultivating.

Professor of horticulture Cynthia Haynes explained: "The larger flowering petunias require regular deadheading to keep them blooming. Newer cultivars are more prolific and don't require much deadheading to keep them blooming all summer."

Beyond deadheading, petunia growers should also make time to trim their plants from time to time.

According to specialists, this is an excellent method to 'revitalise' the plants and stimulate additional flowers to develop during flowering season.

Should you notice your plant appearing spindly, trim them back by roughly half. This will eliminate any withered blooms, promote fresh buds to emerge, and generally create a fuller-looking plant.

Whilst deadheading can be carried out by hand, it's advisable to use secateurs for trimming to achieve a neater cut.