🌸 Discover these 12 flowers that start with O that will transform your garden

Céline Lambert

Updated on:

fleur en o

Have you ever had that moment when you’re desperately searching for a flower name starting with “O” and… nothing? Like, your brain is on strike. Well, problem solved! Today, we’re going on a botanical stroll to discover the most beautiful flowers that start with this letter. And believe me, there are some real gems.

Some are fragrant, others medicinal, and a few are downright exotic. Come on, hop on with me for this journey of flowers and discover plants that, besides being gorgeous, have fascinating stories.


1. Orchid: The must-have star

Ah, the orchid… This flower has a diva vibe but is actually more accessible than it seems. There are over 25,000 species! If you’ve ever tried to keep one at home and it ended up looking like a “sad little stem”, don’t worry, it’s not (only) your fault.

Care: It loves light, but not direct sunlight. Watering? Once a week is enough.
Why adopt it? Because it blooms for a long time and always makes a great impression in an interior.


2. Evening Primrose: The oil that works miracles

The evening primrose is not just a pretty yellow flower that blooms at night (yes, yes, it’s romantic like that). It is also an amazing beauty ally thanks to its oil. If you’ve heard of “evening primrose oil”, know that it is packed with omega-6, perfect for skin and hormones.

🧐 A fun fact: This flower is nicknamed “Evening Primrose” because it blossoms at sunset.


3. Carnation: A scent of yesteryear

The carnation is the flower of classic bouquets, but don’t be fooled by its retro side. It has a true personality! Super resilient, it withstands almost all temperatures and comes in an infinite color palette.

Symbolism: Love, distinction, and even… revolution in some countries!
Scent: A sweet spicy fragrance that recalls the gardens of yesteryear.


4. Oxalis: The lucky plant

Looking for a cute and easy-to-care-for plant? The oxalis is your friend. With its heart-shaped leaves and its ability to close up at night, it’s almost magical.

🌱 Where to place it? In a pot on your desk or in the ground.
🌱 Care? It’s not demanding, a bit of light and water is enough.


5. Osteospermum: The daisy from Africa

The osteospermum, or Cape Daisy, is an explosion of colors. It thrives in full sun and comes in purple, orange, pink, white… In short, it throws a party in your garden.

💡 Tip: The more sun it gets, the more it blooms!


6. Ornithogalum: The plant star

If you want an original flower, the ornithogalum, also known as “Star of Bethlehem”, is a must. With its star-shaped petals and elegant look, it adds a refined touch to any bouquet.

🌟 Fun fact: It is often used in traditional medicine for its soothing properties.


7. Mexican Orange: A citrus scent

Want a plant that smells good all year round? The Mexican Orange is a shrub with fragrant white flowers reminiscent of citrus scents. Ideal for a Mediterranean garden!

Blooming: Twice a year, in spring and autumn.
Bonus: It attracts bees and promotes biodiversity.


8. Ophiopogon: The grass that isn’t grass

The ophiopogon, despite its barbaric name, is a graceful plant. With its fine foliage and small purple flowers, it is often used as groundcover.

🌿 Why adopt it? Because it withstands everything and adds a graphic touch to a garden.


9. Ornithogalum arabicum: Elegance in white

Relative of the classic ornithogalum, this delicate white flower is perfect for floral arrangements. It has a simple and refined look that goes with everything.

🌱 Care: Easy, it grows well in pots as well as in the ground.


10. Osmanthus: The flower of a thousand scents

If you’re looking for a plant that smells like paradise, the osmanthus is the one for you. Its fragrance is often compared to a mix of jasmine and apricot.

Use: In a hedge, in a pot, or in an infusion!
Blooming period: Autumn and spring.


11. Evening Primrose: A wild touch

With its country-style vibe and delicate petals, the evening primrose is ideal for natural gardens. It attracts butterflies and requires very little maintenance.

🦋 Why is it cool? Because it reseeds itself and comes back every year.


12. Othonna: The little succulent jewel

What if we finished with a succulent plant? The othonna is a succulent with yellow flowers, perfect for those who don’t have a green thumb.

🌵 Why choose it? Because it requires almost zero maintenance and survives watering forgetfulness.


Summary table of care for each flower:

FlowerExposureWateringParticularity
OrchidIndirect light1x/weekBlooms for a long time
Evening PrimroseSunLittleBeneficial oil
CarnationSunModerateSpicy scent
OxalisPartial shadeRegularCloses at night
OsteospermumSunModerateBright colors
OrnithogalumSunLittleWhite star
Mexican OrangeSunLittleCitrus scent
OphiopogonShadeLittleGround cover
OsmanthusPartial shadeModerateJasmine-like scent
Evening PrimroseSunLittleAttracts butterflies

💡 So, which of these flowers starting with O will you adopt? Let me know in the comments if you already have one at home or which one catches your eye. And if you liked this article, feel free to share it on your social media, it always makes me happy (and helps other budding gardeners 😉).