10 Flowers that Grow Fast: Speedy Bloomers to Beautify Your Garden Quickly

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For gardening enthusiasts, finding flowers that grow fast can be a rewarding experience. With their rapid growth and beautiful blooms, these plants can quickly transform any outdoor space into a colorful oasis. In this article, we’ll introduce some of the top fast-growing flowers that you can easily incorporate into your garden.

There are many different varieties of quick-blooming flowers, each with unique appearances and characteristics. Some flowers, such as daffodils, grow well in different climates and can even survive cold winters. Other popular options include annual phlox, native to North America and adaptable to various environments, and calendula, known for its broader leaves and skin-healing properties. With so many options available, it’s easy to find flowers that thrive in your specific location and meet your gardening preferences.

In the sections that follow, we’ll explore 10 of the best fast-growing flowers that can help you create a stunning display in your garden. We’ll provide insights into the unique features of each flower, from their blooming patterns to their care requirements, enabling you to make informed decisions when selecting plants for your garden. So, without further ado, let’s delve into the world of fast-growing flowers!

Quick Growing Annuals

Many annual flowers grow quickly, providing gardeners with beautiful blooms in a short period of time. In this section, we will focus on five fast-growing annuals that make great additions to any garden space.


Marigolds are a popular choice for fast-growing annuals as they require minimal care and bloom quickly. They typically begin flowering within 2-3 months of planting and provide continuous blooms throughout the season. Marigolds come in various colors, including orange, yellow, and red, and can grow up to 3 feet tall. Plant these vibrant flowers in full sun and well-draining soil for an eye-catching display.


Zinnias are another quick-growing annual, taking only 5-8 weeks from planting to produce flowers. Available in a wide range of colors, shapes, and sizes, these easy-to-grow flowers can reach up to 4 feet in height. Zinnias love sunny locations and are low maintenance, making them suitable for any gardener. They also make great cut flowers, so sow them in abundance for a continuous supply of stunning blooms.


With their delicate, daisy-like flowers, Cosmos add a touch of elegance to any garden. They typically germinate within 1-3 weeks and bloom within 2 months from planting, providing a quick burst of color in flower beds or containers. Cosmos come in shades of white, pink, and red, and can grow up to 6 feet tall. Plant them in full sun and well-drained soil for best results.


Sunflowers are well-known for their fast growth and towering height. Some varieties can reach 6 feet or more within just three months. These eye-catching plants produce large, showy blooms that come in various colors, including traditional yellow as well as red, burgundy, and orange. Sunflowers thrive in full sun and well-draining soil, making them an ideal choice for beginner gardeners.


Nasturtiums are not only beautiful but also edible, making them a versatile option for quick-growing annuals. They bloom within 6-8 weeks from planting and continue producing vibrant-red, orange, or yellow flowers until frost. Nasturtiums can be grown as climbers, reaching up to 6 feet in height, or as trailing plants suited for containers. Plant them in full sun to partial shade and provide well-draining soil for a successful, colorful display.

Fast Blooming Perennials

Creating a vibrant and colorful garden with fast blooming perennials is an excellent idea, especially for busy gardeners who want low-maintenance plants. This section discusses some popular fast-growing perennial flowers that can bring life and beauty to your outdoor space.


Daylilies are sun-loving, easy-to-grow perennials with trumpet-shaped blooms. They come in a variety of colors, including yellow, orange, red, purple, and pink. These plants thrive in well-drained soil and full sun to partial shade. Daylilies are known for their ability to adapt to various growing conditions, so they can be a great addition to any garden.


Phlox are colorful perennials that produce clusters of delicate, fragrant flowers in shades of purple, pink, white, and blue. They thrive in full sun and well-drained soil with consistent moisture. Phlox are an excellent choice for garden borders or adding height to flower beds. Moreover, they attract butterflies and hummingbirds to your garden.


Coneflowers, also known as Echinacea, are hardy perennials native to North America. They feature large, daisy-like blooms with raised centers in colors such as purple, pink, and white. Coneflowers prefer full sun and well-drained soil, making them a low-maintenance option for gardens. In addition, their vibrant blooms attract pollinators and can serve as a food source for birds during winter.

Black-Eyed Susans

Black-Eyed Susans (Rudbeckia) are bright and cheerful perennials with daisy-like flowers featuring dark centers. These drought-tolerant plants come in various colors, including yellow, orange, cherry, and bicolor flowers. Black-Eyed Susans thrive in full sun and medium moist, well-drained soil. They can grow up to 3 feet tall and 2 feet wide, making them ideal for adding pops of color to your garden.


Salvias are fast-growing perennials that produce clusters of tubular flowers in shades of violet-blue, purple, red, pink, and white. These butterfly-attracting plants can reach up to 5 feet in height with a similar spread. They prefer full sun and well-drained soil, and their unique appearance makes them a stunning addition to any garden. With their low-maintenance requirements and rapid growth, they are an excellent choice for busy gardeners.

Optimal Soil Conditions

When it comes to flowers that grow fast, the ideal soil conditions in terms of temperature and moisture can vary depending on the species and variety. Soil temperature is particularly important during the early stages of plant life, including seed germination and seedling development.

For instance, sunflowers prefer soil temperatures ranging from 70-75°F (21-25°C), while sweet peas tend to grow best in soil temperatures of 55-65°F (12-18°C). Many other types of fast-growing flowers thrive in soil temperatures between 65°F-70°F (18-21°C). It is important to ensure that the soil is not too cold, as this can prevent seeds from germinating or hinder growth.

Aside from temperature, soil moisture and aeration are also crucial factors for flowers that grow fast. Maintaining optimal moisture levels in the soil will help promote healthy growth and a strong root system. Here are some general tips to create favorable soil conditions for fast-growing flowers:

  • Ensure well-drained soil to prevent waterlogging and root rot.
  • Add organic matter or compost to improve soil quality and aeration.
  • Regularly monitor and adjust soil moisture levels to avoid overwatering or underwatering your plants.

Creating the right environment suited for your chosen flower species and variety is essential for optimal growth and a vibrant, flourishing garden.

Sunlight and Watering Requirements

When looking to grow fast-blooming flowers, it’s important to consider the sunlight and watering needs of each plant. Different flowers have varying requirements, but understanding their needs helps to ensure healthy and speedy growth.

For instance, both sunflowers and marigolds thrive in full sunlight, while Vinca flowers can tolerate partial shade. Phlox, a native American plant, is accustomed to growing in various environments, making it a versatile option for a fast-growing flower bed.

In terms of watering, it is crucial to balance the right amount of moisture. Most fast-growing flowers, such as zinnias and marigolds, require consistent watering for optimal growth. It’s good practice to provide at least an inch of water per week for bedded annual plants. Container-grown flowers may need even more water due to increased susceptibility to drying winds.

    • Sunflowers

    • Marigolds

    • Vinca Flowers

    • Phlox

    • Zinnias

Using a drip system or soaker hoses can ensure consistent and efficient watering, especially when paired with a timer for automatic water supply. These methods not only save time but also help maintain the ideal moisture levels for each flower.

There’s a variety of fast-growing flowers available, each with unique sunlight and watering requirements. By understanding their specific needs, avid gardeners and beginners alike can create a beautiful, flourishing garden within a short period. A little care goes a long way in nurturing these quick-blooming flowers, guaranteeing a colorful and vibrant addition to any outdoor space.

Pest and Disease Control

When it comes to pest and disease control, several flowers can aid in keeping harmful insects at bay. Some of these flowers not only grow quickly, but they also have the added benefit of repelling pests or even acting as a natural pesticide. Let’s explore a few of these helpful plants.

  • Marigolds: The popular and vibrant marigold flowers, especially the scented varieties, are known to deter pests. French Marigolds, in particular, are effective at keeping whiteflies away from tomatoes and improve the health of the soil under their plants. (source: Organic Authority)
  • Lavender: A well-loved flowering plant, lavender has a delightful scent, which deters insects such as mosquitoes, flies, and moths, while quickly growing in gardens. (source: VerminKill)
  • Chrysanthemums: Chrysanthemums not only grow fast, but they also contain a natural insecticide called pyrethrum, which helps to repel various insects like roaches, ants, and ticks. (source: VerminKill)
  • Petunias: These colourful and fast-growing flowers attract beneficial insects while repelling several pests, including aphids, tomato hornworms, leafhoppers, and asparagus beetles. (source: VerminKill)
  • Citronella: Often utilized in the production of insect repellent products, citronella flowers emit a strong fragrance that keeps mosquitoes at bay. They are also easy to grow in many gardens. (source: VerminKill)
  • Other Flowers: Flowers such as basil, rosemary, clover, and borage are also effective in repelling pests while contributing positively to garden health. (source: VerminKill)

As you incorporate these fast-growing flowers into your garden, keep in mind that they not only add beauty and color but are also beneficial in repelling harmful pests and helping to prevent diseases among other plants. These flowers serve as a natural and environmentally friendly solution to chemical pesticides, making your garden healthier and more sustainable.