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Phenomenal lavender grows at a moderate to fast rate, typically adding about 4 to 6 inches of new growth per season once established.
That steady pace means you won’t wait forever for a full, fragrant hedge, but you also won’t be hacking it back every single weekend.
If you’ve ever wondered how fast does phenomenal lavender grow compared to other varieties, the answer is simple: it’s one of the quicker hedging lavenders out there.
In this post, we’ll break down exactly how fast phenomenal lavender grows, what speeds it up or slows it down, and how to get the most out of this beautiful plant.
Let’s dig in.
How Fast Does Phenomenal Lavender Grow?
Phenomenal lavender grows fast enough to fill out a garden bed within two to three seasons, and here’s what drives that growth.
1. A Steady 4 to 6 Inches Per Season
Under good conditions, phenomenal lavender grows roughly 4 to 6 inches of new stem and foliage each growing season.
That might not sound like much, but for a compact perennial shrub, it adds up quickly.
Within two seasons, a small starter plant can double in size and start forming that dense, silver-green mound gardeners love.
2. It Reaches Full Size in 2 to 3 Years
How fast phenomenal lavender grows also depends on maturity, because this plant takes about 2 to 3 years to hit its full size.
Year one is mostly about root establishment, so above-ground growth can feel slow.
By year two, phenomenal lavender grows noticeably faster as the roots take hold.
By year three, it’s usually at its mature spread of around 24 to 30 inches wide.
3. Faster Than Many Other Lavenders
Compared to some slower-growing English lavenders, phenomenal lavender grows at an impressively brisk pace.
Breeders developed it for vigor, hardiness, and repeat blooming, which is part of why phenomenal lavender grows so reliably.
Its hybrid background gives it that extra push, so you get a fuller plant sooner.
4. Blooms Appear in the First Year
One perk of how fast phenomenal lavender grows is that it can flower in its very first year.
You’ll typically see those signature purple-blue spikes from early summer into fall.
The faster phenomenal lavender grows, the sooner you get those blooms, and the sooner the bees come visiting.
What Speeds Up Phenomenal Lavender Growth
If you want phenomenal lavender to grow as fast as possible, focus on these key factors.
1. Full Sun Exposure
Phenomenal lavender grows fastest in at least 6 to 8 hours of direct sunlight daily.
Less sun means slower growth, leggier stems, and fewer flowers.
So plant it somewhere bright and watch phenomenal lavender grow with real enthusiasm.
2. Sharp Drainage
Lavender hates wet feet, and phenomenal lavender grows best in sandy or gravelly soil that drains fast.
If your soil holds water, amend it with grit or plant on a slight mound.
Good drainage keeps roots healthy, and healthy roots mean phenomenal lavender grows quicker.
3. Light, Occasional Feeding
You don’t need much fertilizer, but a light dose of balanced feed in early spring helps phenomenal lavender grow stronger.
Too much nitrogen, though, pushes leafy growth at the expense of blooms.
Keep it lean, and phenomenal lavender grows exactly the way it should.
4. Proper Spacing
Crowded plants compete for light, water, and air, which slows how fast phenomenal lavender grows.
Give each plant about 24 to 30 inches of space so air can circulate freely.
That airflow also helps prevent the root rot that can stall phenomenal lavender growth.
What Slows Phenomenal Lavender Growth
Even a vigorous plant like this can stall if a few common mistakes creep in.
1. Overwatering
Overwatering is the number one reason phenomenal lavender grows poorly or dies outright.
Once established, it’s drought tolerant and rarely needs extra water beyond rainfall.
Let the soil dry out between waterings, and phenomenal lavender grows happily.
2. Heavy Clay Soil
Clay soil traps moisture, and that’s a death sentence for lavender roots.
If phenomenal lavender grows in soggy clay, it’ll sulk, yellow, and eventually rot.
Raised beds or gritty amendments solve this fast.
3. Shade and Crowding
Plant phenomenal lavender in shade or jam it against other plants, and growth slows to a crawl.
It needs open skies and room to breathe to grow at its best.
4. Harsh Winters Without Protection
Phenomenal lavender is hardy, but extreme cold can still nip new growth.
In colder zones, a layer of mulch around the base (not touching the stems) helps it bounce back.
So, How Fast Does Phenomenal Lavender Grow?
Phenomenal lavender grows at a moderate to fast rate, adding around 4 to 6 inches per season and reaching full size in 2 to 3 years.
With full sun, sharp drainage, and a little patience, phenomenal lavender grows into a stunning, fragrant shrub faster than most gardeners expect.
So give it the right conditions, and you’ll see exactly how fast phenomenal lavender grows for yourself.