120+ Flowers That Start With O

There are a number of flowers that start with the letter O. One such flower is the orchid. Orchids come in a variety of colors, and can be found in both tropical and temperate climates.

Another flower that starts with O is the oleander. Oleanders are poisonous, but they are also one of the most beautiful flowers around. They come in a variety of colors, including pink, red, white, and yellow.

So, Below is the big list of flowers beginning with letter O.

List of Flowers That Start With O

  1. Oenothera-Fruticosa-Youngii
  2. Orthosiphon Rubicundus
  3. Ornamental-Onion-Flower
  4. Oxalis-Stricta
  5. Olearia
  6. Oxalis-Acetosella
  7. Oriental Poppy White
  8. Orchid-Blue
  9. Orchids Stunning Blue
  10. Orthosiphon-Aristatus-Purple
  11. Osteospermum
  12. Osteospernmum-Berry-White-Purple
  13. Oleander Yellow
  14. Oenothera-Caespitosa
  15. Orange-Oriental-Poppy
  16. Oyster Plant
  17. Oenothera Lamarckiana
  18. Orthosiphon Labiatus
  19. Orthosiphon-Aristatus-White
  20. Osteospermum Fruticosum
  21. Oenothera Fruticosa Youngii
  22. Oleander-White-Nerium
  23. Oleander-Yellow
  24. Osteospermum-Ecklonis
  25. Oleander Purple Nerium
  26. Orchid Pink Yellow Rona Black
  27. Osteospermum D Berry White
  28. Flowers That Start With P
  29. Oyster-Plant-Spanish
  30. Oxeye Daisy
  31. Osteospermum-Fruticosum
  32. Osteospermum D Coral Sand
  33. Oenothera-Pallida
  34. Ornamental Onion White
  35. Orchid-Pink-Yellow-Rona-Black
  36. Osteospermum White
  37. Oenothera-Lamarckiana
  38. Oyster-Plant
  39. Oleander-Purple-Nerium
  40. Orthosiphon Thymiflorus
  41. Ornamental-Onion-White
  42. Orthosiphon-Thymiflorus
  43. Orchid Bright Green
  44. Osteospermum-D-Coral-Sand
  45. Oriental Bittersweet
  46. Oxalis-Corniculata
  47. Ornamental Onion Flowers
  48. Oenothera-Macrocarpa
  49. Osteospermum Serenity Bronze Magic
  50. Oxalis
  51. Oriental-Bittersweet
  52. Orthosiphon Aristatus White
  53. Orange Oriental Poppy
  54. Orchid-Pink
  55. Orange Electric Ori Lilly
  56. Orchid-Phalaenopsis-Yellow-Red

List of Flowers Beginning With O

  1. Oleander-Pink-Flower
  2. Ox Eye Daisy
  3. Osteospermum Ecklonis
  4. Oenothera Pallida
  5. Oxalis Pes Caprae
  6. Orchids Purple
  7. Orchid White
  8. Oenothera Macrocarpa
  9. Oyster Purple
  10. Oenothera Berlandieri
  11. Oleander White Nerium
  12. Oxalis Corniculata
  13. Osteospernmum Berry White Purple
  14. Orthosiphon Aristatus Purple
  15. Ornithogalum
  16. Orange-Electric-Ori-Lilly
  17. Orthosiphon-Rubicundus
  18. Orchid Phalaenopsis Yellow Red
  19. Oyster-Flower
  20. Oriental Lily
  21. Oriental Poppy
  22. Oriental Lilies Starfighter Pink
  23. Oyster Flower
  24. Orchid Blue
  25. Oyster Plant Spanish
  26. Osteospermum Serenity White
  27. Osiria Purple Rose
  28. Oriental Lily Dizzy
  29. Osiria-Purple-Rose
  30. Oriental-Poppy-White
  31. Oyster-Purple
  32. Oleander-Red
  33. Orchid Pink
  34. Ox-Eye-Daisy
  35. Orchids-Stunning-Blue
  36. Oxalis Acetosella
  37. Oenothera Macrocarpa Nutt
  38. Ornamental Cherry
  39. Orchid-White
  40. Octoberfest-Rose
  41. Orthosiphon-Labiatus
  42. Osteospermum-Serenity-Red
  43. Ornamental-Onion-Blue
  44. Oriental-Lily-White-Light-Pink
  45. Ornamental Onion Blue
  46. Orchid
  47. Oleander Pink Flower
  48. Osteospermum-White
  49. Octoberfest Rose
  50. Orchid-Bright-Green
  51. Orientale-Papaver-Manhattan
  52. Oxalis-Pes-Caprae
  53. Osteospermum-Serenity-White
  54. Osteospermum Serenity Red
  55. Oleander
  56. Oriental-Lily-Dizzy
  57. Oleander Red
  58. Oriental Lilies White
  59. Oenothera Villosa Thunb
  60. Oenothera-Macrocarpa-Nutt
  61. Orientale Papaver Manhattan
  62. Oriental-Lilies-Starfighter-Pink
  63. Oenothera-Berlandieri
  64. Oxalis Stricta
  65. Orchids-Purple
  66. Oriental-Lilies-White
  67. Oriental Lily White Light Pink
  68. Oenothera Caespitosa
  69. Osteospermum-D-Berry-White
  70. Oenothera-Villosa-Thunb

10 Popular Flowers That Start With O

1. Orchid


These exotic flowers come in a variety of shapes and sizes and have petals in shades of pink, purple, yellow or white.

2. Oriental Poppy

Oriental Poppy

This bold bloom has bright red petals with black centers and is often used to add height to gardens.

3. Oleander


This hardy shrub is known for its clusters of bright blooms in shades of pink, white or red and is popular as a hedge or specimen plant.

4. Osmanthus


These frangrant flowers have creamy-white petals and bell-shaped centers and bloom in late spring or early summer.

5. Oxalis


Also known as shamrocks, oxalis produce small white or yellow blooms and are popular houseplants.

6. Oenothera


Commonly known as evening primrose, oenothera produces fragrant yellow blossoms that open in the evenings and close during the day.

7. Orange Daisy

Orange Daisy

A member of the daisy family, this flower has daisy-like blooms with bright orange petals and yellow centers.

8. Osteospermum


Also called African daisy, this bloom has white, pink or purple petals with yellow centers and is often used in beds and borders.

9. Ornithogalum


This showy bloom is often referred to as “star of Bethlehem” and has strap-shaped petals in shades of white, pink or yellow.

10. Oncidium


Also called dancing lady orchid, oncidium produces sprays of small yellow and white blooms with wavy petals.

O Letter Flower Name With their Scientific & Botanic Name

Common Flower Name Scientific Name Botanic Family
Ophrys regis-ferdinandii Ophrys regis-ferdinandii Orchidaceae
Ophrys parvimaculata Ophrys parvimaculata Orchidaceae
Ophrys cretensis Ophrys sphegodes subsp. cretensis Orchidaceae
Ononis pusilla Ononis pusilla Fabaceae
Ophrys bertoloniiformis Ophrys bertoloniiformis Orchidaceae
Oblong-leaved Sundew Drosera intermedia Droseraceae
Old Man’s Beard Clematis vitalba Ranunculaceae
Ophrys apulica Ophrys apulica Orchidaceae
Oleander Nerium oleander Apocynaceae
O’Kelly’s Spotted-orchid Dactylorhiza fuchsii subsp. okellyi Orchidaceae
Ophrys gortynia Ophrys sphegodes subsp. gortynia Orchidaceae
Orobanche foetida Orobanche foetida Orobanchaceae
Ophrys dyris Ophrys dyris Orchidaceae
Ornithogalum narbonense Ornithogalum narbonense Asparagaceae
Ophrys mammosa Ophrys sphegodes subsp. mammosa Orchidaceae
Ophrys aveyronensis Ophrys sphegodes subsp. aveyronensis Orchidaceae
One-leaved Scilla Scilla monophyllos Asparagaceae
Ophrys araneola Ophrys sphegodes subsp. araneola Orchidaceae
Orange Balsam Impatiens capensis Balsaminaceae
Ophrys sicula Ophrys sicula Orchidaceae
Oxlip Primula elatior Primulaceae
Oxford Ragwort Senecio squalidus Asteraceae
Ophrys promontorii Ophrys promontorii Orchidaceae
Ophrys x flavicans Ophrys x flavicans Orchidaceae
Orchis sitiaca Orchis sitiaca Orchidaceae
Ophrys melena Ophrys melena Orchidaceae

Flowers Starting With O – Infographics

flowers starting with o flowers beginning with o flowers that begin with o