15 of the most beautiful tall flowers to plant in your garden. Some of these can grow over 3 meters tall!
Tall flowers are great for adding height and dimensions to the garden. In this article, we will be looking at some of the most beautiful and attractive species of tall flowers. Some of these can grow more than 3 meters tall, adding a gorgeous backdrop to smaller flowering plants. Since these flowers are so tall, many of them will also need support to keep them from falling over. Keep reading until the end of the article to learn how.
Contents
1. Foxgloves
Native to Europe, these tall flowers are commonly planted in ornamental gardens for their beautiful bright blooms. During the first year, the plant only produces its foliage, and in the second year, it produces its flowers. Be careful of eating the leaves of this plant as they can be poisonous.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 2m | moderate | purple, pink, white, yellow | late spring, summer | short-lived perennial | 4-10 | full sun | well-draining, rich soil | spring, fall |
2. Allium
Allium which is Latin for garlic, is grown from bulbs. They produce big beautiful round heads of tiny flowers that bloom for weeks. Alliums come in many different colors. These tall, sturdy plants are also great for growing in containers.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1.2m | moderate | white, purple, blue, pink, yellow | summer | perennial | 5-9 | full sun | well-draining | fall |
3. Canna Lily
Canna lilies are especially great if you live in warm sunny climates. These tall, dense plants will most definitely give your garden a tropical touch. They come in amazing bright shades of orange, red, and yellow. They can be grown in containers as well.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1.5m | moderate | orange, red, yellow, white, pink | summer | perennial | 7-12 | full sun | well-draining, rich soil | late spring |
4. Gladiolus
Gladiolus are known for their beautiful tall spikes of flowers. Their bulbs are sown in spring, which then bloom all summer long. The flowers are also great for cuttings.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1.5m | moderate | white, yellow, pink, lavender, red, multi-colored | summer | perennial | 4-11 | full sun | well-draining, sandy loam soil | spring |
5. Hydrangea
Hydrangeas are shrubs that can grow up to 3 meters tall. They produce large heads of flowers that bloom during the summer. Hydrangeas are fast and very easy to grow.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 3m | easy | blue, pink, lavender, white, green, red | summer | perennial | 6-9 | partial sun | well-draining, loam soil | spring, fall |
6. Cosmos
Cosmos are easy and fast-growing flowers. They come in many different shades and can grow very tall. They have long delicate stems with cup-shapes blooms. Cosmos are also perfect for attracting pollinators to your garden.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 2.7m | moderate | red, orange, white, pink, purple, yellow | summer, fall | annual | 2-11 | full sun | well-draining, sandy soil | summer, fall |
Where to Buy Cosmos
7. Hollyhock
Just like foxgloves, hollyhocks also produce their flowers in the second year. These plants are very tall and hardy. They have big blooms which usually come in shades of pink and purple. Hollyhocks can also be grown in containers, but make sure to use large ones as they have a deep root system.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 2.5m | moderate | pink, purple, red, white, blue, black, yellow | summer, fall | short-lived perennial | 2-10 | full sun | well-draining | spring |
Where to Buy Hollyhock
8. Achillea
Achilleas, also known as yarrows and native to North America, has been used as a medicinal plant for centuries. They grow tall with flat heads that are made up of many tiny flowers. Achilleas are fairly easy to grow and are great for borders.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1m | moderate | white, yellow, pink, red, orange, golden | late spring, summer | perennial | 4-9 | full sun | well-draining | spring, summer |
9. Red Hot Poker
With their unique bright flowers, red hot pokers will give your garden an exciting touch. These tall blooms are loved by bees, hummingbirds, and butterflies! They are easy to grow and are known to be deer and rabbit-resistant due to their coarse leaves.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1.2m | moderate | orange, red, yellow, coral | late spring, summer, fall | perennial | 5-9 | full sun | moist, well-draining soil | spring, fall |
10. Cornflower
Known for their beautiful and unique shade of blue, cornflowers can grow up to a meter tall. They are easy to grow and will look amazing when paired with red flowers such as poppies.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1m | moderate | blue, white, purple, pink, red, black | late spring, summer, fall | annual | 3-10 | full sun | well-draining | spring, summer |
11. Pampas Grass
This ornamental grass is perfect as a background to highlight your colorful flowering plants. Pampas grass is easy to grow but is considered an invasive species in some regions.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 3m | easy | cream, silver, green | summer, fall | perennial | 7-11 | full sun | well-draining | spring |
12. Beehive Ginger
Beehive ginger is commonly grown in ornamental gardens for its spectacular cone-shaped bracts. It can grow very tall and bloom for long periods. however, this plant is not frost-tolerant as it is native to tropical warm climates.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 4m | moderate | orange, red, pink, yellow, brown, white | spring, summer, fall | perennial | 9-11 | partial sun | well-draining, rich soil | spring |
13. Coneflower
Coneflowers are a very popular perennial. This is because they are easy to grow and will tolerate almost any growing conditions. These tall flowers will bloom for months and attract lots of pollinators to your garden.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1.5m | moderate | pink, purple, white, red, orange, yellow, green | summer, fall | perennial | 4-9 | full sun | well-draining | spring, fall |
14. Japanese Anemone
These beautiful fall blooms are commonly grown in beds and cottage gardens. Once established, they easily spread on their own. They have tall sturdy stems which make them great for cuttings.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1.5m | moderate | white, pink, purple | summer, fall | perennial | 4-8 | full sun | well-draining, rich soil | spring, fall |
15. Mallow
Mallows or marshmallows, are a close relative to hollyhocks and hibiscus. They are a very common wildflower and are easy to grow from seeds. Mallows will flower all summer long and even into the fall.
| Max height | Difficulty | Colors | Bloom time | Plant type | zones | Sunlight | Soil needs | Planting time |
| 1.2m | moderate | purple, pink, white, red, yellow | early spring, summer, fall | perennial | 4-8 | full sun | well-draining, | summer |
How to support tall flowers from falling over?
Although many of the flowers I’ve mentioned have sturdy stems to help them stand tall, some of them will need support to stop strong winds and rain from toppling them over. Not only will supporting your flowers stop them from falling over, but it will also make them appear more healthy and beautiful, helping them in growing even taller. For this, you can use supports such as stakes and trellises:
- stakes: bamboo canes, wooden sticks, and metal rods can all be used to stake single plants. Use twine or any other type of string to tie the stem to the stake as it grow.
- trellises: they can be used in the same way as stakes but for many plants. As the plant grows, keep tying the stem to the trellis.
For a more detailed explanation and ways to support your tall flowers, check out this article.
Looking for bright and exciting flowers to plant in your garden? Here is a list of 20 orange flower varieties you can grow in your garden.
