Shamrock and Oxalis are often used interchangeably to refer to the plants with clover-shaped leaves that are associated with St. Patrick’s Day. However, there are some differences between the two.
Firstly, let’s clarify the term shamrock. The word shamrock is derived from the Irish word “seamróg,” which means “little clover.” Traditionally, white clover (Trifolium repens) is considered the true shamrock in Ireland. White clover is a low-growing perennial plant with three-lobed leaves and small white flowers. It is a common plant found in lawns and meadows.
On the other hand, Oxalis is the genus name for a group of plants commonly known as wood sorrels. These plants also have clover-shaped leaves, but they belong to a different botanical family than clovers. There are various species of Oxalis that are sold as “shamrock plants” during St. Patrick’s Day.
One of the most popular Oxalis species is Oxalis triangularis, also known as the purple shamrock or false shamrock. It has three heart-shaped leaves that are typically dark purple or burgundy in color. The flowers of Oxalis triangularis are small and pink or white in color. This plant is native to Brazil but has become a popular houseplant worldwide.
Another common Oxalis species is Oxalis deppei, known as the iron cross or lucky clover. This plant has four-leaf clover-shaped leaves with a distinctive reddish-brown marking in the center, resembling an iron cross. It produces small pink or white flowers and is native to Mexico.
In terms of care, both white clover and Oxalis plants are relatively easy to grow. White clover is a hardy plant that thrives in full sun to partial shade and prefers moist soil. It is often considered a beneficial plant in lawns as it fixes nitrogen and helps improve soil fertility.
Oxalis plants, including the purple shamrock and iron cross, are typically grown as indoor houseplants. They prefer bright, indirect light and well-draining soil. It’s important to note that Oxalis plants have a dormant period, usually during winter, where their leaves may die back. During this time, it is recommended to reduce watering and allow the plant to rest until new growth appears.
In terms of symbolism, both shamrock and Oxalis are associated with luck and good fortune. The four-leaf clover, which is a rare variation of white clover, is considered especially lucky. It is said to bring good luck and represent faith, hope, love, and luck itself.
While shamrock traditionally refers to white clover, the plants marketed as shamrock during St. Patrick’s Day are usually species of Oxalis. These Oxalis plants, such as purple shamrock and iron cross, have clover-shaped leaves but belong to a different botanical family. Both white clover and Oxalis are considered symbols of luck and are relatively easy to care for.
