When it comes to caring for a peace lily, they're touted by experts as an easygoing houseplant.

However, the everyday plant fan may find that their peace lily droops, develops mottled leaves, and no longer has white flowers.

While common advice includes positioning the plant in bright, indirect sunlight and watering when an inch of the soil is dry, there is another key element.

According to an expert from Balcony Garden Web, when first buying a peace lily, you should opt for a "mature" plant.

The expert elaborated: "For best results, get a mature plant; young peace lily plants will not flower.

"If you want consistent flowers, it will be a good idea to get a one or two-year-old specimen."

This could mean buying a new peace lily plant, but if you're determined to make the one you already have bloom, there are additional tasks to do.

"Getting them to bloom can be a real challenge," the expert stated, but it is achievable.

On the YouTube video, the expert said the peace lily needs "plenty of light", which is why the plant is more likely to flourish near a window.

Another key point is to "keep it root bound"; the expert elaborated: "Keeping the plant slightly root bound will promote blooming as it will then direct its energy into growing... rather than spreading its roots."

Gibberellic acid, which is typically in plant fertiliser, will also encourage the peace lily to bloom.

"Keep the temperature right," the expert added, specifying the room needs to have a "consistent temperature between 65F and 80F [18C and 26C]".

Fluctuations in temperatures can cause stress to the plant, discouraging the peace lily to bloom.