20 Fast Growing Flowers to Grow This Season

Germination: 5-7 days

Seed to Bloom: 45-50 days

Marigolds are an excellent choice for fast-growing flowers this season. From seed to bloom, marigolds typically take about 45-50 days, making them perfect for gardeners seeking quick results. These vibrant flowers prefer a sunny climate and thrive in warm temperatures between 70-85°F.

To plant marigolds, sow the seeds directly into well-drained soil after the last frost. It is important to keep the soil consistently moist during germination. With their fast growth rate and beautiful blooms, marigolds are a great addition to any garden.

Germination: 7-10 days

Seed to Bloom: 50-60 days

Nasturtium is a fantastic choice for those seeking a fast-growing flower this season. It boasts a short seed-to-bloom time of just 50-60 days, making it one of the fastest-blooming flowers. Nasturtium prefers a sunny climate but can tolerate partial shade. It thrives in moderate temperatures, between 60-70°F (15-21°C).

Sow the seeds directly into well-drained soil after the last frost for optimal growth. Remember to keep the soil moist but not waterlogged. With its vibrant blooms and rapid growth, nasturtium is sure to bring joy to your garden in no time.

Germination: 7-10 days

Seed to Bloom: 60-70 days

Zinnia is an excellent flowering plant to cultivate this season due to its vibrant and diverse blooms. With a quick seed-to-bloom time of about 60-70 days, it provides a rewarding experience for gardeners. Zinnias prefer warm climates and thrive in full sun. 

They come in various shapes and sizes, ranging from small, button-like flowers to large, dahlia-like blooms. The flowers display a wide array of colors, including red, pink, orange, yellow, and purple. To plant Zinnia seeds, simply scatter them in well-drained soil after the last frost and lightly cover them with soil.

Germination: 7-14 days

Seed to Bloom: 60-90 days

Sunflowers are an excellent choice for this season as they have a relatively short seed-to-bloom time of 60-90 days, making them a quick and rewarding addition to any garden. They thrive in full sun and prefer a warm climate with temperatures ranging from 70-78°F.

Sunflowers can grow to impressive heights, with some varieties reaching up to 12 feet tall. Their large, vibrant yellow flowers bring a cheerful touch to any landscape. To plant the seeds, simply sow them directly into well-drained soil about 1 inch deep and 6 inches apart, ensuring they receive adequate water and space to grow.

Germination: 7-14 days

Seed to Bloom: 60-90 days

Bachelor's Button is a fast-growing flowering plant that has a relatively short seed-to-bloom time of about 60-90 days. This plant thrives in cool climates and prefers full sun exposure. It can tolerate a wide range of temperatures, but ideally, it should be grown in temperatures between 60°F to 70°F.

The flowers of the Bachelor's Button are typically round, measuring about 1-2 inches in diameter. They come in various shades of blue, pink, white, and purple. To plant the seeds, simply scatter them on well-drained soil and lightly cover them with a thin layer of soil. Keep the soil moist until germination occurs, which usually takes 7 to 14 days.

Germination: 7-10 days

Seed to Bloom: 70-80 days

Cosmos is another rapidly growing flower that is gaining popularity this season. It has a relatively short seed-to-bloom time, usually taking around 70-80 days to fully mature. These flowers thrive in warm climates and prefer full sun exposure.

They can tolerate a wide range of temperatures, but ideally, temperatures between 70-80°F are optimal for their growth. To plant cosmos, prepare well-drained soil and sow the seeds directly into the ground after the last frost. Water regularly, but avoid overwatering. With these simple tips, you can enjoy vibrant cosmos blooms in no time.

Germination: 7-14 days

Seed to Bloom: 70-85 days

Calendula, also known as pot marigold, is a fast-growing and beautiful flower to plant this season. It has a short seed-to-bloom time of about 70-85 days, making it perfect for quick results. Calendula prefers a temperate climate and can tolerate both full sun and partial shade.

It thrives in temperatures ranging from 55°F to 70°F (13°C to 21°C). To plant, sow the seeds directly in well-drained soil, keep the soil moist, and thin the seedlings to allow proper spacing. With these tips, you'll enjoy the vibrant blooms of calendula in no time!

Germination: 7-10 days

Seed to Bloom: 70-90 days

Sweet Alyssum is another beautiful yet fast-growing flowering plant, taking only 70-90 days from seed to bloom. It thrives in cool climates and prefers temperatures between 50-75°F. This low-growing plant has a spreading, mat-like shape and reaches a height of 6-12 inches.

The flowers of Sweet Alyssum are small and delicate, typically white, pink, or purple. To plant the seeds, simply scatter them on well-drained soil and lightly press them in. Water regularly, and within weeks, you'll be rewarded with a vibrant carpet of blossoms.

Germination: 7-14 days

Seed to Bloom: 75-85 days

Cornflower, also known as Centaurea cyanus, is a perfect flowering plant for this season. It boasts a short seed-to-bloom time of approximately 75-85 days, making it a quick and rewarding addition to any garden. Cornflowers thrive in temperate climates, preferring full sun exposure but tolerating partial shade.

They are adaptable to various soil types, but well-drained soil is recommended. The ideal temperature for planting is around 60-75°F (15-24°C). To plant, sow seeds directly into the garden bed, ensuring a depth of about ¼ inch. Keep the soil moist and provide regular watering for optimal growth.

Germination: 7-10 days

Seed to Bloom: 75-90 days

Borage is an exceptionally beautiful and fast-growing flower to plant this season, and it is edible too making it a great addition to your salads. It boasts vibrant blue star-shaped blossoms that attract bees and butterflies. From seed to bloom, it typically takes around 75-90 days. 

Borage thrives in sunny locations and prefers a moderate climate. It can tolerate a wide range of temperatures but grows best in temperatures between 60-85°F (15-29°C). When planting, sow the seeds directly into well-drained soil and keep it moist. Provide some support for the plants as they grow, as they can reach heights of up to 2 feet (60 cm).

Germination: 7-14 days

Seed to Bloom: 80-100 days

Poppies are a vibrant and quick-growing flowering plant that adds a burst of color to any garden. They have a short seed-to-bloom time of about 80-100 days. To plant poppy seeds, scatter them directly onto well-drained soil in early spring or fall, and lightly cover with a thin layer of soil.

Poppies thrive in temperate climates and prefer full sun exposure. They can tolerate a wide range of temperatures but ideally require temperatures between 50-75°F (10-24°C) for optimal growth. The flowers are typically large and showy, ranging in color from brilliant reds and oranges to soft pinks and whites.

Germination: 7-10 days

Seed to Bloom: 80-100 days

Baby's Breath is a highly popular flower known for its fast growth rate, beautiful appearance, and low maintenance, making it an excellent choice for this season. It has a relatively short seed-to-bloom time of around 80-100 days, allowing you to enjoy its delicate white blooms in no time.

It thrives in a mild climate, preferring temperatures between 60-70°F. To plant, ensure well-drained soil, and provide full sun exposure. Sow seeds thinly and water regularly. Baby's Breath is low-maintenance and can be a beautiful addition to any garden or floral arrangement.

Germination: 10-14 days

Seed to Bloom: 80-110 days

The Four O'Clock Flower is a flowering plant that bursts with color in a short time, typically blooming within 80-110 days after sowing. It thrives in warm climates and prefers full sun. These delightful flowers come in various shades, including pink, red, yellow, and white.

Four O'Clock Flowers are characterized by their trumpet-shaped blooms and reach a height of about 2-3 feet. To plant the seeds, simply sow them in well-drained soil, keeping them consistently moist. With its rapid growth and vibrant blossoms, this plant is a fantastic choice for those looking to add a burst of color to their garden quickly.

Germination: 7-14 days

Seed to Bloom: 90-110 days

Black-Eyed Susan is a rapid bloomer, taking approximately 90 to 110 days from seed to full bloom. These resilient perennials thrive in full sun, making them ideal for warm climates. They prefer well-drained soil and are relatively drought-tolerant once established.

These cheerful flowers display daisy-like blooms with striking yellow petals and dark brown centers. They typically reach a height of 1 to 3 feet. To plant the seeds, simply sow them in early spring, lightly press them into the soil, and keep them consistently moist until germination.

Germination: 7-14 days

Seed to Bloom: 90-120 days

Morning Glory is a rapid-growing flowering plant that dazzles with its vibrant blossoms in about 90 to 120 days. Morning Glories thrive in warm climates, displaying heart-shaped leaves and twining vines. The funnel-shaped flowers come in various shades of blue, purple, pink, and white.

They require a temperature range of 65-75°F (18-24°C). To plant the seeds, scarify or soak them overnight for better germination. Sow them in well-drained soil and provide support for the climbing vines, allowing these charming flowers to flourish and grace your garden with their beauty.

Germination: 10-14 days

Seed to Bloom: 90-120 days

Love-in-a-Mist is a fast-growing flowering plant that typically takes about 90 to 120 days from seed to bloom. It prefers full sun or partial shade. The plant features delicate, fern-like foliage, and its unique, intricate flowers are often a shade of blue, although they can come in pink, white, or purple as well.

Love-in-a-Mist is quite adaptable to temperature, with optimal growth around 70-75°F (21-24°C). To plant the seeds, sow them directly in well-drained soil in early spring or late summer, keeping the soil consistently moist until germination. This charming annual brings a touch of elegance to gardens and is easy to cultivate, making it a popular choice for quick, attractive blooms.

Germination: 10-14 days

Seed to Bloom: 90-120 days

Portulaca is an excellent choice for this season as it boasts a short seed-to-bloom time, typically taking 90 to 120 days to burst into vibrant colors. These hardy annuals thrive in warm climates, appreciating full sun and well-drained soil. Portulacas are tolerant of higher temperatures, making them ideal for hot summer months.

To plant, sow the seeds directly in your garden after the last frost. Keep the soil consistently moist during germination, and soon, you'll be rewarded with a stunning display of low-maintenance, drought-resistant flowers that will brighten your garden all season long.

Germination: 7-14 days

Seed to Bloom: 90-130 days

Shirley Poppy is an excellent choice for a quick burst of color this season, as it typically takes around 90 to 130 days from seed to bloom. These flowers prefer a temperate climate with full sun to partial shade. They are adaptable to various temperature conditions but thrive around 65-75°F (18-24°C).

To plant Shirley Poppies, simply sow the seeds directly in well-drained soil in the spring or fall. Keep the soil consistently moist until germination, and these vibrant, papery blooms will reward you with their beauty in no time.

Germination: 10-14 days

Seed to Bloom: 100-120 days

Verbena is an excellent choice for quick and vibrant blooms. With a seed-to-bloom time of approximately 100 to 120 days, it provides fast gratification. Verbena thrives in a warm, sunny climate and prefers temperatures around 70-75°F (21-24°C).

To plant, sow the seeds in well-draining soil after the last frost. Keep the soil consistently moist until germination, then water moderately. Deadheading spent blooms can encourage continuous flowering. With its dazzling array of colors and low-maintenance care, Verbena is a top pick for gardeners seeking a burst of summer beauty in a short time.

Germination: 10-14 days

Seed to Bloom: 100-130 days

Larkspur is known for its quick growth making it a great choice for a quick bloom. It typically takes around 100 to 130 days from seed to bloom. Larkspur thrives in a cool to temperate climate with well-drained soil and full sun exposure. It prefers temperatures between 60-70°F (15-24°C).

To plant, sow the seeds directly in early spring or late fall, ensuring they have enough space to grow. Keep the soil consistently moist until germination, and you'll soon enjoy the vibrant, spiky blooms that Larkspur offers, adding a burst of color to your garden.