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Top 12 Fast-Growing Plants to Transform Your Garden in No Time

Published on
March 31, 2025
Top 12 Fast-Growing Plants to Transform Your Garden in No Time
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Indoor Garden Ideas Q&A

Q: How do I start an indoor garden in a small space?

A: Start small by choosing easy-to-grow potted plants or herbs that thrive indoors. Use vertical space with shelves or hanging plants to maximize floor space. For limited areas like apartments or home offices, compact container gardening works best.

Q: What are the best plants to grow indoors?

A: Low-maintenance plants like peace lilies, rubber plants, trailing plants like pothos, and indoor trees such as the fiddle leaf fig are among the best indoor options. They adapt well to indirect light and are easy to care for.

Q: What are the easiest herbs to grow indoors?

A: Herbs like basil, mint, parsley, and thyme are some of the best herbs to grow indoors. They grow well on sunny windowsills or under LED grow lights, especially during the winter months when natural light is limited.

Q: Can I grow vegetables indoors?

A: Yes, indoor vegetable gardening is possible with the right setup. Leafy greens, cherry tomatoes, and radishes are great vegetables to grow indoors. Use containers with drainage holes, provide enough light (natural or LED grow lights), and water when the soil feels dry to avoid root rot.

Q: What’s the best lighting for growing plants indoors?

A: Plants that are easy to grow still need adequate lighting. If your space lacks natural light, using grow lights (especially LED grow lights) can mimic sunlight, ensuring gardening success even during darker seasons.

Purple Flower Garden Q&A

Q: Can I grow annual flowers in a purple garden alongside perennials?

A: Absolutely, mixing annual flowers with purple perennials adds variety and color through different seasons. Include petunias, morning glories (with trumpet-shaped flowers), or ageratum as bedding plants for summer color, while perennial favorites like garden phlox and purple coneflower return each year for flowers to grow over time.

Q: What are some purple flowers that bloom early in spring?

A: Some of the flowers from spring such as purple bulbs or tubers—think Iris (violet and blue-purple blooms) or early-blooming lavender-blue flowers—offer an early purple color kick. These types of purple flowers are one of the first flowers to appear and help set the tone for your spring garden.

Q: Which purple flowers are excellent for cut flower arrangements?

A: If you’re looking for excellent cut flowers, consider purple coneflower, garden phlox, lavender with purple flower spikes, or deep purple flowers like Allium. These varieties have sturdy stems, vibrant flower clusters, and lasting flower heads that hold up well in bouquets.

Q: How can I use purple foliage to enhance a garden's color palette?

A: Pair purple foliage plants such as Heuchera with green foliage for dramatic effect. Use them alongside plants with purple flowers or violet flowers so that the foliage complements the bloom colors. This contrast brings out richer tones in the flowers and helps the purple garden feel lush and cohesive.

Q: What purple flowers bloom late in the season?

A: For flowers from late summer to fall, Liatris, purple coneflower, and Verbena bonariensis offer long-lasting blooms and violet-blue flowers. These perennial flowers keep your garden vibrant well after the early bloomers fade, extending the season of interest.

Cat-Friendly Houseplants Q&A

Q: What makes a houseplant “cat-friendly”?

A: A cat-friendly plant is non-toxic and generally safe for curious pets like cats and dogs, even if they occasionally nibble on the leaves. These pet-safe houseplants are carefully selected to avoid causing health issues in cats. According to the ASPCA, certain indoor and outdoor plants are specifically labeled as safe for pets and do not pose poisoning risks.

Q: How do I know if a plant is toxic to cats or dogs?

A: Some plants can cause vomiting, drooling, or even organ damage in pets. Snake plants, ZZ plants, and pothos are popular indoor plants but are toxic to cats and dogs. Before bringing home any potted plants or starting your indoor jungle, consult a reliable list of indoor plants from veterinary sources or plant safety databases like the ASPCA’s. Always verify if a plant is toxic or a safe addition to a pet-friendly home.

Q: Are there plants that are both cat-safe and air-purifying?

A: Yes! Many non-toxic houseplants also purify the air, making them great for improving indoor air quality. For example, spider plants, parlor palms, and hoya plants are pet-friendly plants that are safe while also filtering out toxins from the air. These plants bring freshness into your indoor garden without endangering your furry friends.

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infographics about the 5 most popular fast-growing plants: sunflowers, zuchini, mint, snapdragons, lettuce
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Transforming your garden into a lush, vibrant space doesn't have to take years. By choosing the fastest-growing plants, you can quickly create a stunning landscape filled with perennials, shrubs, and even fast-growing trees that provide shade, privacy, or eye-catching beauty. In this article, we’ll introduce you to the top 12 fast-growing plants—from hybrid poplar to clematis—that can grow 10 to 30 feet a year and thrive in a variety of soil types and climates. Whether you're looking to cover large areas, add a shade tree, or plant a low-maintenance evergreen shrub, these plants that grow quickly will help you achieve your dream garden faster than you ever thought possible. Perfect for beginner and experienced gardeners alike, these selections are easy to care for, come in a variety of shapes and sizes, and offer spectacular foliage or blooms that can transform your yard or even your indoor space. Dive in to discover which ast-growing plants are ideal for your garden!

Top 12 Fast-Growing Plants

Here are 12 fast-growing plants that are perfect for gardens or even containers:

1. Sunflowers (Helianthus annuus)

Sunflowers (Helianthus annuus) by the windowsill thriving indoors

Sunflowers are North American natives widely cultivated for both ornamental beauty and their agricultural value, particularly for sunflower seeds and oil. These towering plants can reach between 6 to 12 feet tall, producing large, bright yellow blooms up to 12 inches in diameter, with a dark seed-filled center. Known for their rapid growth, sunflowers can go from seed to bloom in just 70 days, making them a favorite for gardeners seeking quick results. They thrive in full sunlight and well-drained soil, preferring warm, sunny climates. To care for sunflowers, water them regularly, especially during dry periods, and ensure they are planted in slightly acidic to neutral soil. They perform best in temperatures between 70-85°F. Sunflowers are perfect for beginner gardeners due to their low-maintenance requirements and fast growth, providing instant color and vibrancy to any garden.

2. Zucchini (Cucurbita pepo)

Zucchini (Cucurbita pepo) planted and thriving outdoors

Zucchini, a popular summer squash, is beloved for its rapid growth and culinary versatility. This plant produces large, bushy green leaves and long, cylindrical fruits, typically dark green, though some varieties may be yellow. Zucchini is one of the fastest-growing vegetables, maturing in as little as 50 to 60 days from planting. It thrives in full sun, in fertile, well-drained soil, and warm weather conditions. Regular watering is crucial, especially as the fruit begins to develop, and mulching helps retain soil moisture. Zucchini prefers a soil pH between 6.0 and 7.5 and temperatures above 70°F. Gardeners of all levels can benefit from growing zucchini, especially those interested in fast, productive harvests of homegrown vegetables.

3. Morning Glory (Ipomoea purpurea)

Morning Glory (Ipomoea purpurea) thriving outdoors in a field

Morning glories are fast-growing vines originating from tropical regions, known for their vibrant, funnel-shaped flowers that open in the morning and close by late afternoon. These climbers can reach heights of up to 15 feet, with heart-shaped leaves and blooms in various colors like blue, purple, pink, and white. They grow rapidly, often covering trellises, fences, or walls within two months. Morning glories thrive in full sun and well-drained soil but are tolerant of poorer soil conditions. To care for them, provide regular watering but avoid waterlogging. They thrive in warm temperatures above 60°F. Morning glories are ideal for gardeners looking to add height and color to vertical spaces quickly, making them a great choice for covering unattractive structures in the garden.

4. Radishes (Raphanus sativus)

Radishes (Raphanus sativus) harvested outdoors in a field

Radishes are among the fastest-growing root vegetables, originating from Southeast Asia and known for their crunchy texture and peppery flavor. They produce small, round roots that are typically red or white, while their leafy greens shoot up above the soil. Radishes mature rapidly, often ready to harvest in just 20 to 30 days from planting, making them an ideal choice for gardeners eager for quick results. Radishes thrive in cooler climates, prefer full sun to partial shade, and grow best in fertile, well-drained soil with a pH between 6.0 and 7.0. They require consistent moisture for even root development and need thinning once seedlings emerge to avoid overcrowding. Radishes are perfect for beginners, children, or those with limited time, offering a fast and rewarding gardening experience.

5. Mint (Mentha spp.)

Mint (Mentha spp.) thriving outdoors under the sun

Mint is a hardy, fast-spreading herb, cherished for its refreshing aroma and extensive culinary uses. This plant grows to about 24 inches tall and features small, aromatic, bright green leaves. Mint spreads rapidly through underground runners, quickly filling any space if left unchecked, making it advisable to grow it in containers. It thrives in partial shade and moist, well-drained soil, adapting well to a wide variety of climates, though it prefers cool to mild temperatures. Mint requires regular watering to keep the soil moist and can tolerate light pruning to manage its growth. Ideal for gardeners seeking a fast-growing herb, mint is best suited for those who have space for it to expand or who can contain it in pots, making it a great choice for herb gardens or container gardens.

6. Nasturtiums (Tropaeolum majus)

Nasturtiums (Tropaeolum majus) flowers thriving outdoors

Nasturtiums are vibrant, fast-growing annuals native to South America, known for their brightly colored blooms and edible leaves and flowers. The plants feature rounded green leaves and striking flowers in shades of red, orange, and yellow. They grow quickly, blooming in as little as 6 to 8 weeks after planting. Nasturtiums thrive in poor, well-drained soil and full sun, though they can tolerate partial shade as well. They are relatively drought-tolerant and require little water or fertilizer, as rich soil can inhibit flower production. They do best in cooler temperatures, generally between 55-70°F. Nasturtiums are ideal for beginner gardeners or those looking to add an easy-to-grow splash of color to their garden, requiring very little maintenance while providing ornamental and culinary benefits.

7. Bamboo (Phyllostachys spp.)

Bamboo (Phyllostachys spp.) in a pot thriving

Bamboo is a fast-growing grass that is famous for its rapid vertical growth and strength, with some species growing as much as 3 feet in a single day. Bamboos can vary in size, from small ornamental types to towering plants reaching up to 50 feet. Bamboo has slender, tall, hollow stalks with long, narrow green leaves that form dense clusters. It spreads quickly through underground rhizomes, making it ideal for filling spaces but also potentially invasive if not contained. Bamboo thrives in full sun to partial shade, well-drained soil, and can adapt to both tropical and temperate climates, though it prefers a temperature range between 60-80°F. To care for bamboo, provide ample water, especially in its early years, and mulch around the base to retain moisture. Bamboo is great for gardeners looking to create a fast-growing privacy screen or windbreak, though it requires regular monitoring to prevent uncontrolled spreading.

8. Sweet Alyssum (Lobularia maritima)

Sweet Alyssum (Lobularia maritima) thriving outdoors in a garden

Sweet alyssum is a low-growing annual that quickly covers ground with clusters of small, fragrant flowers in shades of white, pink, and purple. Native to the Mediterranean, this plant grows only 4 to 6 inches tall, spreading up to a foot wide, forming a dense mat of flowers and fine, green foliage. It grows quickly and blooms profusely from spring through fall, making it a popular choice for edging and ground cover. Sweet alyssum thrives in full sun to partial shade and prefers well-drained soil, though it can tolerate drought once established. Regular watering and deadheading encourage longer bloom periods. This plant is perfect for gardeners looking for a fast-growing, low-maintenance ground cover or border plant that adds color and fragrance to the garden.

9. Snapdragons (Antirrhinum majus)

Snapdragons (Antirrhinum majus) in different colors thriving outdoors

Snapdragons are classic cottage garden plants with tall spikes of vibrant flowers that resemble a dragon's mouth, hence their name. These upright plants can grow between 1 to 3 feet tall, with flowers in a wide range of colors, including red, pink, yellow, and white. Snapdragons grow quickly from seed, often blooming within 2 to 3 months, making them a favorite for flower beds and borders. They thrive in full sun to partial shade and prefer well-drained, moderately fertile soil. Water snapdragons regularly, keeping the soil moist but not waterlogged, and deadhead the flowers to promote further blooming. Snapdragons prefer cooler weather and may struggle in high heat. They are best suited for gardeners who enjoy vibrant, tall flowers and want to add a cottage-garden feel to their space.

10. Cosmos (Cosmos bipinnatus)

Cosmos (Cosmos bipinnatus) flowers thriving outdoors

Cosmos are tall, airy plants that produce delicate, daisy-like flowers and are often used in wildflower gardens or cutting gardens. Native to Mexico and South America, these plants can grow up to 4 to 6 feet tall, with feathery foliage and flowers in shades of pink, white, red, and purple. Cosmos germinate and grow quickly, often reaching full height and bloom within 60 days. They thrive in full sun and poor to average soil, making them one of the easiest flowers to grow in less-than-ideal garden conditions. Cosmos are drought-tolerant once established and need minimal watering. These plants are perfect for gardeners who want low-maintenance, fast-growing flowers that add color and texture to their garden without requiring much effort.

11. Lettuce (Lactuca sativa)

Lettuce (Lactuca sativa) thriving outdoors in the soil

Lettuce is a cool-season leafy vegetable that is prized for its fast growth and versatility in salads and sandwiches. Originating from the Mediterranean, lettuce comes in many varieties, including romaine, butterhead, and loose-leaf, each offering slightly different leaf textures and flavors. Most types of lettuce grow up to 6 to 12 inches tall and can be harvested in as little as 30 days, making it one of the quickest vegetables to grow. Lettuce thrives in cool, moist environments, preferring full sun in spring or fall and partial shade in hotter months. To ensure optimal growth, keep the soil consistently moist and use fertile, well-drained soil. Lettuce prefers temperatures between 60°F-70°F, and mulching can help retain soil moisture and keep the roots cool. Lettuce is ideal for gardeners looking for quick, consistent harvests, making it a perfect choice for small spaces or container gardens.

12. Spinach (Spinacia oleracea)

Spinach (Spinacia oleracea) thriving outdoors planted in the soil

Spinach is a leafy green vegetable known for its fast-growing habit and nutritional value. Native to Persia, spinach grows in a rosette of dark green leaves that can reach up to 8 to 12 inches in height. Depending on the variety, spinach can be harvested within 30 to 40 days, making it a rapid addition to vegetable gardens. Spinach thrives in cooler temperatures and performs best in full sun to partial shade, preferring rich, well-drained soil with consistent moisture. It grows best in temperatures between 50-70°F and can bolt (flower and go to seed) in hot weather, so it’s ideal for spring or fall planting. Spinach is perfect for gardeners who want to grow nutrient-rich greens quickly, especially those looking for a crop that can be grown in small garden spaces or containers.

Frequently Asked Questions and Answers:

Q: What are the easiest fast-growing plants for beginners?

A: Sunflowers, radishes, and nasturtiums are among the easiest fast-growing plants for beginners, as they require minimal care and grow quickly.

Q: Can fast-growing plants be grown indoors?

A: Yes, many fast-growing plants such as mint and bamboo can be grown indoors as long as they receive sufficient light and water.

Q: How can I speed up the growth of my plants?

A: To encourage faster growth, provide plants with optimal growing conditions, including sufficient sunlight, water, and nutrient-rich soil. Regular pruning and deadheading can also promote faster growth.

Q: Are there fast-growing plants that require little maintenance?

A: Yes, plants like sweet alyssum and cosmos are fast-growing and require minimal care, making them perfect for low-maintenance gardens.

Q: Can I plant fast-growing plants in containers?

A: Many fast-growing plants, such as mint and nasturtiums, thrive in containers, as long as they have enough space for their roots to grow and regular watering.