B lue flowers are a rarity in the plant world, long captivating gardeners and botanists with their elusive beauty. While it can be difficult for gardeners to find plants that produce blue flora ...

To produce blue flowers they need to be grown in acid soil between pH 5.5-4.5. Adding aluminum sulfate to the soil also encourages blue flowers. In less acidic soils, the blooms may be white or pink.

Blue plumbago makes a beautiful ground cover, but if you skip regular pruning, this plant can easily take over your landscape. Here's how and when to prune.

It's natural to think of sun-loving plants such as delphiniums, baby blue eyes, anchusa and lithodora when the subject of blue arises, but there are a surprising variety of blue-flowering plants ...

Question: A clump-forming blue flowering plant with sword-like leaves has started growing in my landscape. What is its name and do I keep it? Answer. Welcome this self-seeded landscape addition as ...

The bright blue flowers of Lobelia siphilitica brighten many perennial beds from July to late September or early October. This hardy native is a clump-forming perennial that sends up a stiff ...

Mystery of begonia's bizarre BLUE leaves solved: Quantum trick allows the plant to harvest more light. Shade-dwelling begonias adapted to forests by boosting photosynthesis ...

The common blue violet grows about 3- to 8-inches tall, producing 1-inch flowers that are white in the center with 5 distinct deeply blue-purple or white petals.

Roses are red but violets aren’t blue. They’re mostly violet. The peacock begonia, however, is blue—and not just a boring matte shade, but a shiny metallic one.Its leaves are typically dark ...

Unlike most plants, B. pavonina has evolved iridescent blue leaves. This is due to its unusual chloroplasts, known as iridoplasts, which are located within its surface layers.