Have you ever wished your garden could look lush and full right away instead of waiting years for plants to grow? You’re not alone! Many gardeners—whether beginners or seasoned green thumbs—want fast-growing outdoor plants that deliver quick results. From filling in empty spaces to creating natural privacy screens, these speedy growers can help you achieve a vibrant, thriving garden in record time.
In this guide, we’ll explore the best fast-growing outdoor plants, their benefits, practical care tips, and how to design a garden that flourishes quickly. Whether you’re after colorful flowers, tall shrubs, or greenery that covers ground fast, there’s a plant here for you.
🌿 Why Choose Fast-Growing Outdoor Plants?
Fast-growing plants are the garden’s instant makeover artists. Instead of waiting seasons or years, you can enjoy beauty and functionality within weeks or months. Here are some reasons why these plants are so popular:
- Instant curb appeal – Fill bare spots quickly with lush greenery and blooms.
- Natural privacy – Fast-growing shrubs and trees create living fences or screens.
- Soil health & erosion control – Quick growers stabilize soil and improve its fertility.
- Pollinator-friendly – Many produce flowers that attract bees, butterflies, and hummingbirds.
- Beginner-friendly – Ideal for new gardeners eager to see fast results.
🌱 Best Categories of Fast-Growing Outdoor Plants
Let’s break down the top groups of fast growers so you can find the perfect fit for your outdoor space.
1. Fast-Growing Flowers for Quick Color
If you crave vibrant blooms, these plants will deliver a burst of color in no time.
- Sunflowers – Germinate quickly and grow tall within weeks.
- Marigolds – Hardy, fast bloomers that also repel pests.
- Petunias – Spread quickly and bloom all season.
- Zinnias – Easy to grow, bright, and attract pollinators.
💡 Tip: Start seeds indoors to get a head start before transplanting outdoors.
2. Fast-Growing Shrubs for Privacy and Structure
Shrubs can transform a garden by adding height, shape, and even privacy.
- Forsythia – Bright yellow flowers in early spring.
- Hydrangeas – Fast growers with beautiful, showy flowers.
- Lilac Bushes – Rapid-growing and fragrant.
- Privet – Perfect for quick hedges and privacy screens.
💡 Tip: Prune lightly in early spring to encourage fuller, denser growth.
3. Fast-Growing Trees for Shade and Beauty
Want shade without waiting decades? These trees grow quickly and provide both function and beauty.
- Willow Trees – Famous for their rapid growth.
- Silver Maple – Grows several feet per year.
- Poplar Trees – Fast-growing and tall, great for large spaces.
- Redbud Trees – Quick growers with stunning pink blossoms.
💡 Tip: Plant trees at least 10–15 feet apart to allow proper root expansion.
4. Fast-Growing Vines for Vertical Spaces
If you want to cover walls, trellises, or fences, vines are the way to go.
- Morning Glory – Rapid climber with trumpet-shaped blooms.
- Clematis – Fast-growing with a variety of flower colors.
- Trumpet Vine – Quick cover and hummingbird magnet.
- Wisteria – Stunning cascades of flowers within a couple of years.
💡 Tip: Provide sturdy support early, as these vines grow aggressively.
5. Fast-Growing Ground Covers
Ground covers are perfect for reducing weeds and covering bare soil quickly.
- Creeping Jenny – Bright green carpet that spreads rapidly.
- Clover – Grows fast and improves soil health.
- Sedum (Stonecrop) – Hardy, drought-resistant, and quick-spreading.
- Periwinkle (Vinca Minor) – Evergreen ground cover with purple flowers.
💡 Tip: Use ground covers around stepping stones, borders, or sloped areas.
6. Fast-Growing Herbs and Edibles
Yes, even your kitchen garden can benefit from fast growers!
- Basil – Grows quickly and provides fresh leaves for cooking.
- Mint – Spreads fast, perfect for teas and garnishes.
- Radishes – Harvest-ready in less than a month.
- Lettuce & Spinach – Quick-growing greens for salads.
💡 Tip: Plant in succession every 2–3 weeks for continuous harvest.
🌞 How to Choose the Right Fast-Growing Outdoor Plants
Before you rush to plant, keep these factors in mind:
1. Climate and Hardiness Zone
Always choose plants suited to your local conditions. A willow tree that thrives in one region may struggle in another.
2. Soil Conditions
Some fast growers like well-drained soil (lavender, zinnias), while others prefer moist conditions (willows, hydrangeas).
3. Sunlight Requirements
- Full Sun: Sunflowers, petunias, poplars.
- Partial Shade: Hydrangeas, vinca minor.
- Full Shade: Ferns, hostas (also grow fast in shady areas).
4. Purpose
- For beauty → sunflowers, zinnias, hydrangeas.
- For privacy → privet, lilacs, poplar trees.
- For quick cover → creeping jenny, morning glory, clover.
🌿 Practical Tips for Growing Fast-Growing Plants
Even though these plants grow quickly, a little care ensures maximum growth and beauty.
1. Start with Healthy Soil
Amend soil with compost to give plants the nutrients they need to grow rapidly.
2. Regular Watering
Most fast growers are “hungry” for water, especially in their early stages. Use drip irrigation for efficiency.
3. Fertilize Strategically
Use a balanced fertilizer to encourage both root and leaf growth. Avoid overfertilizing—too much nitrogen can reduce flowering.
4. Prune and Deadhead
For flowering plants, remove spent blooms to encourage continuous blooming. For shrubs, prune lightly to shape growth.
5. Control Spread
Some fast growers (like mint or trumpet vine) can become invasive. Use pots, raised beds, or barriers to keep them contained.
🌸 Designing a Fast-Growing Garden
Want to create a lush garden in record time? Follow this step-by-step approach:
Step 1: Plan Your Layout
Sketch your garden and mark sunny vs. shady areas.
Step 2: Mix Plant Types
Combine fast-growing shrubs, flowers, and ground covers for layered beauty.
Step 3: Use Vertical Space
Incorporate trellises or fences for fast-growing vines.
Step 4: Add Seasonal Variety
Plant both annuals (zinnias, sunflowers) and perennials (hydrangeas, lilacs) for immediate and long-term results.
Step 5: Maintain Lightly
Do seasonal cleanups, prune, and refresh mulch for ongoing beauty.
🌿 Benefits of Fast-Growing Outdoor Plants
Why do gardeners love fast growers so much? Here’s what they offer:
- Instant results – See beauty within weeks.
- Affordable landscaping – Quick fill-ins reduce the need for expensive garden decor.
- Privacy and shade – Trees and shrubs provide shelter in record time.
- Erosion control – Ground covers and shrubs stabilize soil quickly.
- Biodiversity – Many attract pollinators and wildlife.
🌿 Common Mistakes to Avoid
Even with fast growers, mistakes happen. Avoid these pitfalls:
- Planting invasive species without control – Mint, bamboo, and trumpet vine can overtake your garden.
- Overcrowding – Fast growers need space to spread.
- Ignoring pruning – Leads to leggy or unruly growth.
- Neglecting soil prep – Quick growers still need good soil to thrive.
🌿 FAQs About Fast-Growing Outdoor Plants
1. What is the fastest-growing outdoor plant?
Bamboo and willow trees are among the fastest-growing plants, with some species growing several feet per year.
2. Can I use fast-growing plants for privacy?
Yes! Shrubs like privet, lilac, and trees like poplar are excellent for creating natural privacy screens.
3. Do fast-growing plants require more maintenance?
Not always. Some require pruning to stay tidy, but many are surprisingly low-maintenance.
4. What fast-growing plants are best for small spaces?
Petunias, zinnias, creeping jenny, and dwarf shrubs work well in compact gardens.
5. How long before I see results from fast-growing plants?
Many annual flowers bloom within 6–8 weeks, while shrubs and trees may take a year or two to show full impact.
🌿 Conclusion: Grow Beauty Faster Than Ever
If patience isn’t your strong suit, fast-growing outdoor plants are the perfect way to transform your space quickly. From vibrant sunflowers to privacy-boosting shrubs and sprawling ground covers, these plants prove you don’t have to wait years for a lush garden. With the right care and planning, your garden can thrive and impress in record time.
Ready to bring your garden dreams to life? 🌱
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Hi, I’m the creator of Green Plant Zone, a space dedicated to plant lovers. I share tips on indoor and outdoor gardening, plant care guides, and eco-friendly living. My mission is to help you grow healthier, happier plants and bring more greenery into everyday life.