The wait for a new flower bed to fill in can test any gardener’s patience. You want color, texture, and life—not a season of staring at bare soil while you wonder if you did something wrong. Fast growing perennial flowers are the shortcut to that instant gratification, returning year after year without the annual replanting hassle of annuals.
I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. I’ve spent years studying germination data, bloom timelines, and real-world owner reports to separate the quick starters from the slow disappointments, helping you build a garden that pops fast and lasts.
After digging through hundreds of customer experiences and seed specs, I’ve pinned down the five most reliable varieties that deliver visible growth in weeks, not months. This is my guide to the best fast growing perennial flowers for anyone who wants a lush, pollinator-friendly garden without the year-long wait.
How To Choose The Best Fast Growing Perennial Flowers
Not all perennials are created equal when it comes to speed. Some spend their first season building roots below ground before showing much above it. The ones you want for immediate impact share a few common traits: quick germination (under 14 days), a tendency to self-seed, and the ability to establish in a single growing season. Here’s what to look for when making your pick.
Germination Time and Seed Viability
The first hard number to check is germination time—the window between planting and seeing the first cotyledons break soil. Seeds that sprout in 7–10 days are your best bet for fast ground coverage. Also look for lab-tested germination rates above 80%, which indicate the seed lot is fresh and likely to perform. Some species, like Columbine, require cold stratification (a period of cold, wet storage) to break dormancy; if you skip that step, they may not germinate at all, regardless of seed quality.
Bloom Period and Flowering Consistency
You want flowers that don’t just grow fast but also bloom reliably in their first season. Check the “Expected Blooming Period” on the seed packet. Varieties that bloom from spring through summer—or even year-round in mild climates—give you the longest payoff. Self-seeding perennials, such as Four O’Clocks and Forget-Me-Nots, often bloom more heavily in their second year as the colony expands naturally.
Height, Spread, and Use Case
Consider how the plant fits into your existing layout. Low growers (6–14 inches) like Tom Thumb Nasturtium or Forget-Me-Nots work well as ground cover, border edge, or tucked around bulbs. Taller types like Four O’Clocks (up to 36 inches) and McKana Giant Columbine (up to 32 inches) act as structural mid-layer or background plants. Matching the mature height to the planting zone—front, middle, or back of the bed—prevents overcrowding and ensures each variety gets enough sun.
Environmental Adaptability
Fast doesn’t mean fragile. The best fast-growing perennials thrive across a range of USDA zones, tolerate some drought once established, and attract pollinators. Soil type tolerance (all soil types is a strong signal) and moderate watering needs are green flags for low-maintenance success. If you garden in partial shade, prioritize varieties like Forget-Me-Nots that are explicitly listed as partial shade tolerant.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| 200,000+ Wildflower Seeds Bulk (4oz) | Premium Mix | Large area coverage & pollinator garden | 16 varieties, 200K+ seeds | Amazon |
| McKana Giant Hybrid Columbine Mix | Premium Single | Tall architectural blooms in spring | Up to 32″ tall, 2500 seeds | Amazon |
| 80 Broken Colors Four O’Clock Seeds | Mid-Range | Fragrant evening blooms & self-seeding | 80 seeds, 12-36″ tall | Amazon |
| Forget Me Not Seeds – 500 Seeds | Mid-Range | Partial shade ground cover with bulbs | 500 seeds, 6-12″ tall | Amazon |
| Tom Thumb Nasturtium Seeds | Budget | Quick ground cover in containers or beds | 40+ seeds, 8-14″ tall | Amazon |
In‑Depth Reviews
1. 200,000+ Wildflower Seeds Bulk (4oz) – 16 Varieties
This bulk mix from Fruivity packs over 200,000 seeds across 16 varieties—including Purple Jasmine, Zinnia, and Cosmos—making it the most versatile option in this roundup. The blend is designed for fast sprouting in 7–20 days, and real-world owners consistently confirm quick germination with visible growth within two weeks. It’s an heirloom, non-GMO mix that covers a massive area, ideal for large beds, meadows, or roadside strips.
What sets this apart is the resealable, moisture-proof pouch that keeps seeds fresh for years—smart packaging for a long-term seed bank. The variety in height (from 6 inches to 6 feet) and color (red, orange, yellow, purple, white) gives you multi-layered texture without buying separate packets. Drought tolerance once established is another strong point for low-maintenance gardeners.
Owners praise the sheer quantity and the fun of watching a diverse mix emerge. A few note that annuals in the blend die back after one season, but the perennials return heavier each year. This is the one-stop shop for anyone who wants instant garden transformation with minimal planning.
What works
- Massive 200K+ seed count covers huge areas
- Quick 7-20 day sprouting confirmed by buyers
- Attracts bees, butterflies, and hummingbirds reliably
What doesn’t
- Annual varieties in the mix will not overwinter
- Some seeds may blow away in strong wind before rooting
2. McKana Giant Hybrid Columbine Seeds – 600 Seeds
The McKana Giant Hybrid Columbine is a classic perennial wildflower that reaches an impressive 32 inches tall, making it a standout mid-layer or background plant for any bed. The 600-seed packet from Marde Ross & Company offers a mix of colors (multi) with blooms from spring into summer. Owners who followed proper cold stratification reported a 96% germination rate—extraordinary for columbine—but those who skipped the stratification saw zero sprouts, a critical detail for first-timers.
This variety thrives in full sun across zones 3–9, and its uniquely shaped, spurred flowers are heavy pollinator magnets. Unlike many fast-growing perennials that spread horizontally, columbine grows vertically, adding height without crowding neighbors. The seeds require a two-phase treatment: warm room temperature (72–80°F) for 4 weeks, then a cold refrigerator period for another 2–4 weeks before sowing. It’s a hands-on process, but the payoff is a dramatic, airy display in year two and beyond.
Experienced gardeners love the giant blooms that look like they belong in a botanical garden. The main downside is the patience required for stratification—this is not a scatter-and-forget seed. But for those willing to follow the protocol, the results are unmatched.
What works
- 96% germination rate with proper stratification technique
- Stunning 32-inch tall flower spikes for vertical interest
- Non-GMO and pollinator-attracting wildflower classic
What doesn’t
- Requires cold stratification or seeds may not germinate
- Slow to establish in first season compared to others
3. 80 Broken Colors Four O’Clock Seeds – Tender Perennial
The Four O’Clock (Mirabilis jalapa) is a true curiosity in the perennial world—its trumpet-shaped flowers remain tightly closed until late afternoon, then open with a vanilla-like fragrance that fills the evening air. This 80-seed packet from Marde Ross & Company produces a broken-color mix of yellow, white, pink, and red blooms on plants that reach 12–36 inches tall. It’s a tender perennial that forms tubers underground, allowing it to survive mild winters and re-emerge stronger each year.
The self-seeding habit is a double-edged sword: it ensures the bed fills in reliably each season, but it can become invasive if not managed. Owners note that seeds should not be buried deep—scatter on the surface and lightly press in. The plant tolerates partial shade better than many full-sun perennials, and hummingbirds are known to feed from the flowers even at 10 PM.
Customer feedback is overwhelmingly positive, with many calling it their favorite flower for its unique timing and fragrance. A minority reported zero germination, likely from planting too deep or in overly wet soil. For anyone with a sunny or partly shaded spot who wants an evening-scented garden feature that returns every year, this is the one.
What works
- Unique evening bloom time with vanilla fragrance
- Self-seeds and forms tubers for reliable return
- Attracts hummingbirds late into the evening
What doesn’t
- Can become invasive if allowed to seed freely
- Requires shallow surface planting to germinate
4. Forget Me Not Seeds – 500 Flower Seeds – Perennial Ground Cover
Forget-Me-Nots (Myosotis) are the go-to perennial ground cover for shaded areas where many other flowers struggle. The 500-seed packet from Marde Ross & Company produces delicate sky-blue blossoms with yellow centers on plants 6–12 inches tall. They bloom from spring to summer, and their early-season nectar is critical for bees and butterflies emerging from winter. Germination is reported as fast—some owners saw sprouting by day two—though a few experienced no blooms after months, likely due to insufficient light or overly dry soil.
These seeds are recommended for fall or early spring planting in moist, well-drained soil, and they thrive in partial shade as well as full sun. Hardy in zones 3–9, they weave beautifully around tulips and daffodil bulbs, creating a low carpet of blue that masks fading bulb foliage. The self-seeding habit means the patch naturally thickens each year with zero effort.
Value-wise, 500 seeds is a generous quantity for covering moderate beds. The main complaint involves seed count discrepancies—some buyers felt the packet was underfilled for a 5,000-seed claim (note that current labeling says 500 seeds). For partial shade areas where you want quick, pollinator-friendly ground cover that returns reliably, Forget-Me-Nots deliver.
What works
- Partial shade tolerant—fills dark corners other perennials avoid
- Quick germination, some owners saw sprouts in 2 days
- Excellent ground cover between spring bulbs and borders
What doesn’t
- Some batches may have inconsistent seed count vs. labeling
- Requires consistent moisture; dry soil delays or prevents bloom
5. Tom Thumb Nasturtium Seeds – Great Ground Cover
The Tom Thumb Nasturtium is a dwarf variety that tops out at just 8–14 inches, making it one of the fastest ways to get low-growing color across a bed or container. The 40+ seed packet from Marde Ross & Company yields yellow, cream, orange, and some variegated blooms, with foliage that stays neat and compact rather than vining all over the place. It’s an annual treated as a tender perennial in warm zones—it reseeds easily if you let a few flowers go to seed.
Germination reports are mixed but mostly positive: many owners saw “popped right up” growth in days, while a small number got green leaves that died without ever flowering. The plant attracts hummingbirds and butterflies, and it thrives in all soil types with moderate watering. Because of its short stature, it’s ideal for the front of borders, rock gardens, or window boxes where you want instant ground coverage without overwhelming neighboring plants.
This is the budget-friendly entry point for experimenting with fast perennials. The tradeoff is the smaller seed count (40+) relative to other options, and the fact that some plants may not produce any flowers in their first season. For a low-risk, fast-spreading ground cover that adds pops of warm color, Tom Thumb Nasturtium is a solid choice.
What works
- Very low 8-14 inch height—perfect for border edges
- Attracts hummingbirds and butterflies from early summer
- Grows well in containers, curbside, or all soil types
What doesn’t
- Smaller 40+ seed packet limits coverage area
- Occasional failures to flower in first season noted by buyers
Hardware & Specs Guide
Germination Time Range
Fast-growing perennial flower seeds typically germinate in 7–20 days under optimal conditions (70–80°F soil temperature, consistent moisture). However, some species like Columbine require a mandatory cold stratification phase of 2–4 weeks at 35–40°F before they will sprout. Check the seed packet for specific requirements—skipping this step can result in zero germination, even from high-quality seed stock.
Seed Count & Coverage Area
Seed counts vary dramatically: small packets like Tom Thumb Nasturtium contain 40+ seeds, while bulk blends like Fruivity’s 200,000+ seed mix can cover hundreds of square feet. As a general rule, 500 seeds covers roughly 50–100 square feet for a ground cover effect, depending on spacing. Higher seed counts don’t always mean better quality—freshness, storage conditions, and viability percentage matter more than raw quantity.
FAQ
How fast do fast growing perennial flowers actually grow compared to annuals?
Do I need to cold stratify seeds like Columbine or can I skip it?
Which fast growing perennial flowers attract the most pollinators?
Can fast growing perennials be planted in partial shade?
Final Thoughts: The Verdict
For most gardeners, the best fast growing perennial flowers winner is the 200,000+ Wildflower Seeds Bulk Mix because it gives you instant large-area coverage with 16 diverse varieties, fast 7-20 day germination, and a guaranteed pollinator display from spring through fall. If you want tall, architectural blooms that draw hummingbirds from evening until night, grab the 80 Broken Colors Four O’Clock Seeds. And for a low-maintenance partial shade ground cover that naturalizes around bulbs, nothing beats the Forget Me Not 500 Seed Packet.