Flower Names That Start With O - Unique List Of Flowers (2024)

The type of flower names that start with O accentuates the personality of kids who carry the name. So we have 7,493 flower names that start with the letter O. Did you know that, in general, yellow flowers are female and white are male, and spring flowers bloom during March or April? Keep reading us.

Flower Names That Start With O - List Of O Flowers

Ohio Spiderwort

The Ohio spiderwort is a wildflower that grows in the state of Ohio. It is named for its spider-like flowers arranged in a circular pattern around each stem.

Obovate Peony

The obovate peony is a flowering plant that can grow in the wild in many parts of the world, including Europe and Asia. It’s often used as a garden plant because it produces beautiful flowers in various colors, including pink and white.

Orange Coneflower

The orange coneflower is another wildflower often found growing in the wild in many parts of the world, including North America, Europe, and Asia. It’s also one of the most well-known coneflowers because its bright orange petals make it easy to spot among other plants.

Old Lady Cactus

The spines on the old lady cactus are short and soft, so it's a good plant for children to touch. The Old Lady Cactus is also known as the Ball Cactus or Golden Barrel Cactus. It is a species of cacti that can be found in Mexico and the southwestern United States. The name "Ball Cactus" comes from its round, ball-shaped body. The Old Lady Cactus can grow up to two feet tall and three feet wide. The flowers of this cactus are bright yellow and bloom in springtime (April to May).

Ox-Eye Daisy

This flower grows in clumps or patches and produces bright yellow flowers. It is commonly grown as an ornamental plant in gardens.

Owl's Clover

This plant has large green leaves and small white flowers that bloom in spring and summer.

Oyster Plant

This plant has thick, gray-green leaves with purple veins and white flowers that bloom from spring through fall.

Oyster Mushroom (Pleurotus Ostreatus)

Oyster mushrooms have flat caps that can be white, brown, or grayish-white in color, with gills underneath the cap edge. The caps grow up to 6 inches wide and are edible when cooked properly.

Oregano

Oregano is an herb that belongs to the mint family of plants and can be found growing naturally in Mediterranean climates around the world. It has several different varieties that produce different types of oregano. Still, most people will recognize wild oregano or Greek oregano as the most common varieties used in cooking and for medicinal purposes today.

Oleander

This shrub or small tree has poisonous leaves that can make you sick if they're eaten or touched by someone who's allergic to them (this includes dogs!). The leaves are bright green when they're young and grow darker as they mature; they're often used as cut flowers because they last so long out of the water (about 7 months).

Oyster Plant

The Ozark Pincushion Cactus is a cactus native to Missouri and Arkansas. The plant has been used in traditional medicine for its anti-inflammatory properties, although it is not known to be effective as a medication. The Ozark Pincushion Cactus is also edible and can be eaten raw or cooked. The plant has also been used as an ornamental plant.

Oxeye Daisy

Oxeye Daisy is a common name for several species of daisies with yellow flowers. The name "oxeye" refers to the color of the flower heads, reminiscent of ox eyes (the small white spots on animal eyeballs). Oxytropis means "sharp smelling" in Greek, referring to the odor of some species in this genus.

A common name for this genus is "Fool's Parsley" because some species resemble parsley but are poisonous when eaten raw; however, other members of this genus are edible and have been used medicinally for centuries by Native Americans and European settlers alike. You can also look at various plans for flower pots that you can easily do.

Oxytropis (Fool's Parsley)

Explanation of the flower's name: The Ozark Pincushion Cactus (Mammillaria Pectinifera) is a flowering plant in the family Cactaceae. It is endemic to Mexico, which grows in deserts and other dry habitats. Its common names include pin cushion cactus, button cactus, and ball cactus. The name comes from the fact that it has many spines reminiscent of pins sticking out of a cushion.

Ozark Pincushion Cactus

Ozark Pincushion Cactus is a small cactus that grows in the Ozark Mountains, usually on north-facing slopes or in rocky outcrops. The plant can find at elevations between 400 and 1500 meters. The plant has a yellow flower with red spots when in bloom. The plant can be identified by its flowers and leaves with spines on the edges.

Oleander Yellow

Oleander Yellow has bright yellow flowers that bloom all year long if given enough sunlight. This type of oleander requires more water than other types of oleander. However, it's still considered low maintenance since it doesn't need much attention after being planted as long as you give it enough water regularly.

Oleander Yellow is a small shrub that grows to only 4 feet tall and wide, making it perfect for containers or small gardens. You can also prune this plant to keep it smaller if you prefer.

Oleander Yellow's flowers are fragrant and look great when grown in groups or as a hedge along your fence line or driveway. This is one of the most popular types of oleanders because it does well in pots and the ground, and its flowers last for months before needing replacement.

Oyster Plant (Meehania Cordata)

Oyster Plant (Meehania Cordata) is a flowering perennial plant native to China. It is a very popular houseplant and can be grown outdoors in warm climates. The plant produces long-stemmed spikes of small white flowers that resemble tiny oysters, hence the name. These flowers bloom during spring and summer and will remain in bloom for most of the year if you keep your plant well-watered and fertilized.

Orchid Pink

Orchid Pink is another popular choice for indoor gardening because it does not require much care or attention. The plant has shiny dark green leaves with light pink flowers that bloom throughout the year when given enough light and water. Several varieties are available, so you can choose one with different colored flowers if you want something more interesting than just pink ones.

Wind-Up

Another list post, but this one encompasses all the florae we have ever known. The most important part of this article is that the names start with the letter O, not just a bunch of random names thrown together to have a list post.

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