Hydrangea colors can change with soil composition. Here's what to know about changing your soil pH to get the hydrangea ...

You can see a video of his process below. The experimentation started with fish tank clarifier, which is — apparently — mostly alum. Alum’s been used to treat wastewater for a long time.

Because salt has been detected on Mars, it is likely that Martian mudflows are also salty, much like Earth’s mud volcanoes, ...

Alcoa double downgraded at Bank of America, driven by lower earnings estimates due to a weaker outlook for aluminum and ...

Before you dig a garden, it's important to figure out what type of soil you have and then select plants (and amend your soil) accordingly.

No need for an awkward cashier interaction — just take a gander at these products that help with ear wax, sweaty pits and ...

Hydrangeas are a mainstay of the garden, thanks to their easy-care nature and their gorgeous, dramatic blooms that make a ...

Changing your hydrangea flowers to blue, pink or purple isn't a magic trick. It's a doable science experiment.

"To turn hydrangea blooms blue, lower the soil pH with a specialty fertilizer or aluminum sulfate. To turn hydrangea blooms pink, raise the soil pH with a specialty fertilizer or garden lime ...