white begonias

12 Annual Flowers That Bloom All Summer Long

Nothing brightens up a garden like a profusion of colorful flowers that bloom continuously throughout the summer. Annual flowers, with their vibrant hues and extended bloom periods, can transform any garden into a stunning visual display. By choosing the right varieties, you can enjoy non-stop blooms from late spring until the first frost.

In this article, I’ll introduce you to twelve annual flowers that are known for their long-lasting summer blooms. These selections will keep your garden vibrant and lively, ensuring you get the most out of your gardening efforts. Let’s explore these summer bloomers and see how they can enhance your garden’s beauty!

Petunias

petunias
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Petunias are one of the most popular annual flowers, known for their large, trumpet-shaped blooms and a wide range of colors. They bloom from late spring through the first frost, providing continuous color all summer long. Petunias thrive in full sun and well-drained soil, making them perfect for garden beds, containers, and hanging baskets.

I love petunias for their versatility and vibrant colors. They’re incredibly easy to care for and can fill any garden space with lush, cascading blooms. Deadheading spent flowers encourages more blooms, ensuring your garden stays colorful and inviting throughout the season.

Marigolds

french marigold
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Marigolds are cheerful, sun-loving annuals that bloom from late spring to fall. Their bright, sunny hues of yellow, orange, and red add warmth and vibrancy to any garden. Marigolds are also known for their pest-repelling properties, making them a practical choice for vegetable gardens and flower beds.

I enjoy planting marigolds not only for their beauty but also for their resilience and easy care. They thrive in full sun and well-drained soil, and their long-lasting blooms require minimal maintenance. Plus, marigolds are great for attracting beneficial insects, adding to their value in the garden.

Zinnias

zinnia flowers
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Zinnias are bold, colorful annuals that bloom profusely from early summer until the first frost. These flowers come in a variety of vibrant colors, including red, pink, yellow, orange, and white. Zinnias are perfect for cutting gardens, borders, and containers, adding a splash of color wherever they’re planted.

I love zinnias for their long-lasting blooms and minimal care requirements. They thrive in full sun and well-drained soil, and they’re drought-tolerant once established. Regular deadheading keeps zinnias blooming all season long, ensuring a continuous display of bright, cheerful flowers.

Cosmos

cosmos flowering in a field
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Cosmos are airy, daisy-like flowers that bloom from early summer to fall. Their delicate, feathery foliage and vibrant blooms in shades of pink, white, and red add a touch of elegance to any garden. Cosmos are easy to grow and thrive in full sun and well-drained soil.

One of my favorite things about cosmos is their ability to attract pollinators like bees and butterflies. They’re perfect for wildflower gardens and mixed borders, adding a whimsical, natural look. Cosmos are also excellent for cutting, bringing their beauty indoors as well as out.

Geraniums

annual geranium
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Geraniums are classic annuals known for their vibrant blooms and aromatic foliage. These flowers bloom from late spring to fall, offering a continuous display of red, pink, white, and purple blossoms. Geraniums are ideal for containers, hanging baskets, and garden beds.

I enjoy growing geraniums for their versatility and long-lasting color. They thrive in full sun to partial shade and well-drained soil. Regular deadheading and occasional fertilizing keep geraniums blooming profusely throughout the summer, ensuring a beautiful and fragrant garden.

Begonias

begonias
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Begonias are versatile annuals that bloom from late spring to fall, providing continuous color in shades of red, pink, white, and orange. They thrive in partial shade to full shade and well-drained soil, making them perfect for shady garden spots and containers.

I love begonias for their lush foliage and bright, cheerful blooms. They’re incredibly easy to care for and add a touch of elegance to shaded areas. Begonias are also great for window boxes and hanging baskets, creating a cascade of color that lasts all summer long.

Impatiens

impatiens with pink flowers
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Impatiens are shade-loving annuals that bloom from late spring to the first frost. These flowers come in a variety of vibrant colors, including red, pink, orange, white, and purple. Impatiens thrive in partial to full shade and well-drained soil, making them ideal for shady garden beds and containers.

I enjoy planting impatiens for their continuous blooms and ability to brighten up shady spots. They’re easy to care for and can create a lush, colorful carpet of flowers. Impatiens are also great for window boxes and hanging baskets, adding a splash of color to any shady area.

Lantana

lantana
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Lantana is a hardy annual known for its clusters of small, tubular flowers that bloom from late spring to fall. These flowers come in a range of colors, including yellow, orange, red, pink, and purple. Lantana thrives in full sun and well-drained soil, making it perfect for hot, dry climates.

I love lantana for its vibrant blooms and ability to attract butterflies and hummingbirds. It’s incredibly drought-tolerant and low-maintenance, making it a great choice for gardeners who want long-lasting color with minimal effort. Lantana is perfect for borders, containers, and hanging baskets.

Calibrachoa

Calibrachoa
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Calibrachoa, also known as million bells, is a profuse bloomer that produces small, petunia-like flowers from late spring to fall. These flowers come in a wide range of colors, including red, pink, yellow, orange, blue, and purple. Calibrachoa thrives in full sun and well-drained soil, making it ideal for containers and hanging baskets.

I enjoy growing calibrachoa for its continuous blooms and trailing habit. It’s perfect for adding a cascade of color to containers and baskets. Calibrachoa is also easy to care for, requiring regular watering and occasional fertilizing to keep it blooming all summer long.

Nicotiana

flowering tobacco
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Nicotiana, or flowering tobacco, is an annual that produces fragrant, tubular flowers from late spring to fall. These flowers come in shades of white, pink, red, and green, adding a touch of elegance to any garden. Nicotiana thrives in full sun to partial shade and well-drained soil.

I love the sweet fragrance of nicotiana and its ability to attract pollinators. It’s perfect for planting near patios and walkways, where its scent can be enjoyed. Nicotiana is also great for adding height and drama to garden beds and borders, creating a lush, fragrant display.

Vinca

vinca flower
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Vinca, also known as periwinkle, is a tough, drought-tolerant annual that blooms from late spring to fall. These flowers come in a variety of colors, including pink, red, white, and purple. Vinca thrives in full sun to partial shade and well-drained soil, making it perfect for hot, dry climates.

I enjoy planting vinca for its continuous blooms and low-maintenance nature. It’s perfect for ground covers, borders, and containers, adding a splash of color that lasts all summer long. Vinca is also great for attracting pollinators and creating a vibrant, lively garden.

Portulaca

portulaca
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Portulaca, also known as moss rose, is a hardy annual that blooms from late spring to fall. These flowers come in a variety of bright colors, including pink, red, orange, yellow, and white. Portulaca thrives in full sun and well-drained soil, making it perfect for hot, dry conditions.

I love portulaca for its vibrant blooms and ability to thrive in challenging conditions. It’s perfect for rock gardens, borders, and containers, adding a burst of color to any garden space. Portulaca is also incredibly low-maintenance, making it a great choice for busy gardeners.

Thomas Nelson
Gardening Expert
Hi! I'm Thomas, one of the founders of The Garden Magazine. I come from a long line of gardeners who used the art of gardening as a way to live long, healthy lives. I'm here to share my knowledge of gardening with the world!