alyssum

Alyssum refers to a group of flowering plants in the genus Lobularia, commonly known as sweet alyssum. These plants are native to the Mediterranean region and are popular for their fragrant, small flowers that typically appear in clusters. The most common color is white, but cultivars also come in shades of pink, purple, and yellow.

Sweet alyssum is an herbaceous perennial, though it is often grown as an annual in cooler climates. It is a low-growing, spreading plant that typically reaches a height of only 3 to 9 inches. Its small, lance-shaped leaves are usually grayish-green. The tiny flowers, about 1/4 inch across, have four petals and are characterized by a sweet, honey-like scent that is most pronounced in the evening.

These plants are widely cultivated for their use in gardens, particularly as borders, ground cover, or in hanging baskets and containers. They thrive in full sun to partial shade and prefer well-drained soil. Alyssum is relatively drought-tolerant once established and requires minimal maintenance, though occasional deadheading can encourage more prolific blooming. They are also attractive to pollinators such as bees and butterflies.

While sweet alyssum is the most common species, other plants are sometimes referred to as alyssum, such as those in the genus Aurinia. However, when 'alyssum' is used without further specification, it generally refers to Lobularia maritima.