If you’ve ever wondered how many flowers start with the letter O, this list has the answer. There are 23 of them here, ranging from “Orchid” to “Orange Coneflower.” These flowers come from a wide range of climates and regions, from tropical forests to woodland gardens, and they show off nearly every color and shape you can imagine. People grow them for garden color, cut arrangements, symbolic meaning, and in some cases, even medicinal or culinary uses.

Flowers are the reproductive structures of flowering plants, often prized for their color, fragrance, and symbolism as much as their biological role. Many carry deep cultural meaning, like the orange blossom, which has been woven into bridal bouquets for centuries as a symbol of purity and lasting love. Others, like the night-blooming orchid cactus, have inspired folklore simply because of how briefly their beauty lasts.

Below you’ll find the table with the flower, scientific name, growing region, color, meaning, and description.

Flower: the common name you’ll recognize each entry by, useful for quickly identifying a specific flower on the list.

Scientific Name: the Latin name botanists use, handy if you want to search for more detailed or technical information.

Growing Region: where the flower naturally grows or thrives, helpful for figuring out if it will suit your climate.

Color: the typical bloom colors, so you can picture the flower or match it to a color scheme.

Meaning: the symbolism traditionally associated with the flower, useful if you’re choosing one for a gift or special occasion.

Description: a short overview of what makes the flower distinct, giving you a quick sense of its appearance and character.

Flowers

Descriptions