Plants That Start with O | Names List With Pictures

Are you looking for plants that start with O? There are many interesting plants beginning with the letter O, including flowering plants, garden plants, houseplants, trees, shrubs, herbs, vegetables, and fruit plants.

Some familiar examples include Oleander, Orchid, Olive Tree, Oak Tree, Oregano, Oxalis, Orange Tree, Okra, Osmanthus, and Oregano. This list includes common and less common plant names beginning with O, making it useful for children, students, gardeners, and anyone exploring plant names alphabetically.

List of Common Plants That Start With O

Here is a list of common and popular plant names beginning with O:

1. Oak Tree
2. Olive Tree
3. Orange Tree
4. Orchid
5. Oleander
6. Oregano
7. Oxalis
8. Okra
9. Osmanthus
10. Oregano
11. Olea
12. Osteospermum
13. Ox-Eye Daisy
14. Ornamental Onion
15. Ornamental Grass
16. Ostrich Fern
17. Oat Grass
18. Oat Plant
19. Onion Plant
20. Orach
21. Opuntia
22. Orchid Tree
23. Oregon Grape
24. Oregon Grape Holly
25. Oregon Ash
26. Ohio Buckeye
27. Oriental Poppy
28. Oriental Lily
29. Oriental Plane Tree
30. Orange Jasmine
31. Orange Jessamine
32. Orange Honeysuckle
33. Orange Trumpet Vine
34. Oxalis Triangularis
35. Oxalis Versicolor
36. Oxalis Deppei
37. Ornamental Kale
38. Ornamental Cabbage
39. Oyster Plant
40. Oyster Mushroom

Garden Plants That Start With O

Many O-named plants are popular choices for gardens, flower beds, borders, containers, and landscaping.

1. Orchid
2. Oleander
3. Oregano
4. Oxalis
5. Osteospermum
6. Ox-Eye Daisy
7. Ornamental Onion
8. Ornamental Grass
9. Oriental Poppy
10. Oriental Lily
11. Orange Jasmine
12. Orange Honeysuckle
13. Orange Trumpet Vine
14. Oregon Grape
15. Osmanthus
16. Opuntia
17. Oyster Plant
18. Orach
19. Ornamental Kale
20. Ornamental Cabbage
21. Oxalis Triangularis
22. Oxalis Versicolor
23. Oxalis Deppei
24. Oenothera
25. Ornamental Millet
26. Orange Cosmos
27. Orange Marigold
28. Orange Daylily
29. Orange Coneflower
30. Orange Zinnia

Houseplants That Start With O

Several O-named plants are popular for indoor gardening and containers.

1. Orchid
2. Oxalis
3. Oxalis Triangularis
4. Oyster Plant
5. Orchid Cactus
6. Olive Tree
7. Orange Jasmine
8. Osmanthus
9. Opuntia
10. Oregano
11. Oeonia
12. Ornamental Pepper
13. Orchid Tree
14. Oxalis Deppei
15. Oxalis Versicolor
16. Othonna
17. Ophiopogon
18. Ornamental Pine
19. Orange Jessamine
20. Olive Bonsai

Flowering Plants That Start With O

Many plants beginning with O produce attractive flowers in different colors and shapes.

1. Orchid
2. Oleander
3. Oxalis
4. Osteospermum
5. Ox-Eye Daisy
6. Oriental Poppy
7. Oriental Lily
8. Orange Jasmine
9. Orange Honeysuckle
10. Orange Trumpet Vine
11. Osmanthus
12. Oenothera
13. Orchid Tree
14. Orange Cosmos
15. Orange Daylily
16. Orange Coneflower
17. Orange Zinnia
18. Ornamental Onion
19. Oxalis Triangularis
20. Oxalis Versicolor
21. Oxalis Deppei
22. Orach Flower
23. Oenothera biennis
24. Osteospermum ecklonis
25. Oleander Rose

Trees That Start With O

Several familiar trees have names beginning with O.

1. Oak Tree
2. Olive Tree
3. Orange Tree
4. Orchid Tree
5. Oregon Ash
6. Ohio Buckeye
7. Oriental Plane Tree
8. Osmanthus Tree
9. Osage Orange Tree
10. Oregon White Oak
11. Oregon Live Oak
12. Overcup Oak
13. Oregon Maple
14. Olivewood Tree
15. Oriental Spruce
16. Ogeechee Lime
17. Ohelo Tree
18. Otaheite Apple
19. Owari Satsuma Tree
20. Orange Jasmine Tree

Shrubs That Start With O

These shrubs can be used in gardens, hedges, borders, and landscaping.

1. Oleander
2. Osmanthus
3. Oregon Grape
4. Orange Jasmine
5. Orange Honeysuckle
6. Oregon Grape Holly
7. Olearia
8. Ocean Spray
9. Olive Shrub
10. Osmanthus heterophyllus
11. Osmanthus fragrans
12. Oregon Boxwood
13. Orange Jessamine
14. Olea europaea
15. Olearia haastii
16. Olearia traversiorum
17. Oregon Tea Tree
18. Olearia paniculata
19. Osmanthus delavayi
20. Osmanthus fortunei

Herb Plants That Start With O

Several herbs and culinary plants begin with O.

1. Oregano
2. Onion
3. Orach
4. Okra
5. Olive
6. Oyster Plant
7. Oregano Greek
8. Oregano Mexican
9. Onion Chives
10. Oregano Italian
11. Orange Mint
12. Oregano Syrian
13. Onion Grass
14. Oxalis
15. Orach Greens
16. Oyster Leaf
17. Olive Herb
18. Oregano Cuban
19. Oregano Golden
20. Oregano Compactum

Fruit Plants That Start With O

Many fruit-producing plants and trees have names beginning with O.

1. Orange Tree
2. Olive Tree
3. Osage Orange
4. Otaheite Apple
5. Ogeechee Lime
6. Ohelo Berry
7. Oregon Grape
8. Oil Palm
9. Owari Satsuma
10. Oriental Pear
11. Okinawa Spinach
12. Otaheite Gooseberry
13. Opal Plum
14. Oroblanco Grapefruit
15. Orangequat
16. Olive
17. Orange
18. Ogen Melon
19. Osteen Mango
20. Oroblanco

Vegetable Plants That Start With O

Here are some vegetable and edible plants beginning with O.

1. Okra
2. Onion
3. Orach
4. Oyster Plant
5. Oyster Mushroom
6. Ornamental Kale
7. Ornamental Cabbage
8. Okinawa Spinach
9. Onion Chives
10. Onion Grass
11. Oxalis
12. Olive
13. Okra Plant
14. Oca
15. Oca Root
16. Orange Cauliflower
17. Orange Bell Pepper
18. Orange Carrot
19. Oriental Mustard
20. Oriental Radish

Tropical Plants That Start With O

Many tropical and warm-climate plants beginning with O are grown for their foliage, flowers, fruits, or ornamental value.

1. Orchid
2. Oleander
3. Orange Tree
4. Olive Tree
5. Okra
6. Opuntia
7. Orchid Tree
8. Orange Jasmine
9. Orange Honeysuckle
10. Orange Trumpet Vine
11. Osmanthus
12. Otaheite Apple
13. Ogeechee Lime
14. Ohelo
15. Oil Palm
16. Okinawa Spinach
17. Oca
18. Oyster Plant
19. Orange Cosmos
20. Orange Daylily

Indoor Plants That Start With O

These O-named plants are commonly grown indoors or in containers.

1. Orchid
2. Oxalis
3. Oxalis Triangularis
4. Oyster Plant
5. Orchid Cactus
6. Olive Tree
7. Orange Jasmine
8. Osmanthus
9. Opuntia
10. Oregano
11. Othonna
12. Ophiopogon
13. Ornamental Pepper
14. Orchid Tree
15. Oxalis Deppei
16. Oxalis Versicolor
17. Olive Bonsai
18. Orange Jessamine
19. Oeonia
20. Olearia

Plants That Start With O for Different Growing Conditions

Sun-Loving Plants That Start With O

1. Oleander
2. Olive Tree
3. Orange Tree
4. Oregano
5. Osteospermum
6. Ox-Eye Daisy
7. Ornamental Onion
8. Oriental Poppy
9. Oriental Lily
10. Opuntia
11. Oregon Grape
12. Orange Jasmine
13. Orange Honeysuckle
14. Orange Trumpet Vine
15. Oenothera

Shade-Loving Plants That Start With O

1. Orchid
2. Oxalis
3. Ostrich Fern
4. Oyster Plant
5. Ophiopogon
6. Osmanthus
7. Oregon Grape
8. Orange Jasmine
9. Olearia
10. Oxalis Triangularis
11. Orchid Cactus
12. Othonna
13. Oenothera
14. Ornamental Grass
15. Olive Tree

Drought-Tolerant Plants That Start With O

1. Oleander
2. Olive Tree
3. Oregano
4. Opuntia
5. Osteospermum
6. Oxalis
7. Oregon Grape
8. Osmanthus
9. Olearia
10. Othonna
11. Olive Shrub
12. Ornamental Grass
13. Orange Honeysuckle
14. Orange Trumpet Vine
15. Oenothera

Evergreen Plants That Start With O

1. Olive Tree
2. Oleander
3. Osmanthus
4. Oregon Grape
5. Olearia
6. Oregon Boxwood
7. Orange Jasmine
8. Orange Honeysuckle
9. Olive Shrub
10. Ophiopogon
11. Opuntia
12. Oyster Plant
13. Orchid Tree
14. Otaheite Apple
15. Ohelo

Perennial Plants That Start With O

Many plants beginning with O can grow as perennials under suitable conditions.

1. Orchid
2. Oleander
3. Oregano
4. Oxalis
5. Osteospermum
6. Ox-Eye Daisy
7. Ornamental Onion
8. Oriental Poppy
9. Oriental Lily
10. Oyster Plant
11. Ostrich Fern
12. Oenothera
13. Oregon Grape
14. Osmanthus
15. Ophiopogon
16. Opuntia
17. Orange Daylily
18. Orange Honeysuckle
19. Orange Trumpet Vine
20. Oxalis Triangularis

Plants That Start With O for Beginners

Several O-named plants are popular choices for beginner gardeners.

1. Oregano
2. Orchid
3. Oxalis
4. Olive Tree
5. Oleander
6. Orange Tree
7. Ornamental Grass
8. Osteospermum
9. Ox-Eye Daisy
10. Okra
11. Onion
12. Opuntia
13. Orange Jasmine
14. Osmanthus
15. Oregon Grape

Plants That Start With O for Kids

Learning plant names alphabetically can help children explore nature and build vocabulary.

1. Oak Tree
2. Olive Tree
3. Orange Tree
4. Orchid
5. Oleander
6. Oregano
7. Oxalis
8. Okra
9. Osmanthus
10. Ox-Eye Daisy
11. Ornamental Onion
12. Ostrich Fern
13. Oat Plant
14. Onion Plant
15. Orach
16. Opuntia
17. Orchid Tree
18. Oriental Poppy
19. Oriental Lily
20. Orange Jasmine

50 Plants That Start With O

Here is a quick list of 50 plant names beginning with O:

1. Oak Tree
2. Olive Tree
3. Orange Tree
4. Orchid
5. Oleander
6. Oregano
7. Oxalis
8. Okra
9. Osmanthus
10. Osteospermum
11. Ox-Eye Daisy
12. Ornamental Onion
13. Ornamental Grass
14. Ostrich Fern
15. Oat Grass
16. Oat Plant
17. Onion Plant
18. Orach
19. Opuntia
20. Orchid Tree
21. Oregon Grape
22. Ohio Buckeye
23. Oriental Poppy
24. Oriental Lily
25. Oriental Plane Tree
26. Orange Jasmine
27. Orange Honeysuckle
28. Orange Trumpet Vine
29. Oxalis Triangularis
30. Oxalis Versicolor
31. Oxalis Deppei
32. Ornamental Kale
33. Ornamental Cabbage
34. Oyster Plant
35. Oyster Mushroom
36. Oenothera
37. Olearia
38. Ophiopogon
39. Othonna
40. Oca
41. Ohelo
42. Ogeechee Lime
43. Otaheite Apple
44. Owari Satsuma
45. Orangequat
46. Oroblanco
47. Ogen Melon
48. Osteen Mango
49. Oregon Ash
50. Osage Orange

FAQs:

1. What are some plants that start with O?

Some common plants that start with O include Oak, Olive, Orange, Orchid, Oleander, Oregano, Oxalis, Okra, Osmanthus, and Osteospermum.

2. What is a popular houseplant that starts with O?

Orchid, Oxalis, Oyster Plant, Orchid Cactus, Olive Tree, Orange Jasmine, and Ophiopogon are examples of plants that can be grown indoors or in containers under suitable conditions.

3. What is a flowering plant that starts with O?

Some flowering plants beginning with O include Orchid, Oleander, Oxalis, Osteospermum, Ox-Eye Daisy, Oriental Poppy, Oriental Lily, Orange Jasmine, and Oenothera.

4. What trees start with the letter O?

Some trees that start with O include Oak Tree, Olive Tree, Orange Tree, Orchid Tree, Oregon Ash, Ohio Buckeye, Oriental Plane Tree, Osage Orange, and Ogeechee Lime.

5. What is an easy plant that starts with O?

Oregano, Oxalis, Olive Tree, Orange Tree, Ornamental Grass, Osteospermum, and Okra can be suitable choices for beginner gardeners when grown under appropriate conditions.

6. What are some tropical plants that start with O?

Some tropical and warm-climate plants beginning with O include Orchid, Oleander, Orange Tree, Opuntia, Orchid Tree, Orange Jasmine, Otaheite Apple, Ogeechee Lime, Oil Palm, and Okinawa Spinach.

7. What fruit plants start with O?

Some fruit-producing plants that start with O include Orange Tree, Olive Tree, Osage Orange, Otaheite Apple, Ogeechee Lime, Ohelo Berry, Owari Satsuma, Oroblanco Grapefruit, Orangequat, and Ogen Melon.

Plants that start with O include a wide variety of houseplants, garden plants, flowering plants, trees, shrubs, herbs, vegetables, and fruit plants. From familiar choices such as Oak, Olive, Orange, Orchid, Oleander, Oregano, Oxalis, and Okra to less common plants such as Oenothera, Olearia, Ophiopogon, Othonna, and Ogeechee Lime, there are many interesting plants to discover.

This Plants That Start With O list can be useful for children’s alphabet learning, school projects, gardening activities, plant-name worksheets, quizzes, and general nature exploration.