How Fast Does Phenomenal Lavender Grow

Phenomenal lavender grows at a moderate to fast rate, typically adding about 4 to 6 inches of new growth each growing season once it’s established.
 
That means if you plant a young phenomenal lavender in spring, you can expect it to roughly double in size by the end of its second year.
 
It’s not the fastest shrub in the garden, but it’s far from slow—especially compared to other lavender varieties that crawl along at just 2 to 3 inches per year.
 
So if you’ve been asking “how fast does phenomenal lavender grow,” the short answer is: fast enough to fill out a border or hedge within a couple of seasons.
 
In this post, we’ll break down exactly how quickly phenomenal lavender grows, what affects its growth rate, and how to speed things up so your plants thrive.
 

How Fast Does Phenomenal Lavender Grow?

Phenomenal lavender grows faster than most other lavender cultivars, and here’s why that matters for your landscape.
 

1. It’s a Hybrid With Vigorous Roots

Phenomenal lavender is a hybrid cross bred for toughness and rapid establishment.
 
Its root system develops quickly, which means it can take up water and nutrients more efficiently than species lavenders.
 
That strong root growth translates directly into faster top growth above the soil.
 

2. First-Year Growth Is Modest, Then It Takes Off

During its first year, phenomenal lavender focuses most of its energy on rooting rather than shooting up.
 
You might only see 2 to 3 inches of new top growth in that first season.
 
But once the roots are settled, phenomenal lavender growth accelerates dramatically in year two and beyond.
 

3. Mature Size Reached in 2 to 3 Years

A healthy phenomenal lavender typically reaches its full mature size of about 24 to 30 inches tall and wide within 2 to 3 growing seasons.
 
That’s remarkably quick for a perennial shrub that lives for years.
 
So when people ask how fast phenomenal lavender grows, the honest answer is: give it two full seasons and you’ll be amazed.
 

What Affects How Quickly Phenomenal Lavender Grows

Even though phenomenal lavender grows relatively fast, several factors can slow it down or speed it up.
 

1. Sunlight Exposure

Phenomenal lavender needs at least 6 to 8 hours of direct sun daily to grow at its fastest.
 
Less sun means slower growth, leggier stems, and fewer blooms.
 

2. Soil Drainage

Lavender hates wet feet, and phenomenal lavender is no exception.
 
If your soil stays soggy, growth will stall and root rot can set in.
 
Amend heavy clay with grit or plant in raised beds to keep phenomenal lavender growing strong.
 

3. Watering Habits

Once established, phenomenal lavender is drought tolerant and actually grows faster with occasional deep watering rather than frequent shallow sprinkles.
 
Overwatering is the number one killer of lavender and will definitely slow its growth.
 

4. Pruning Timing

Light pruning after bloom keeps phenomenal lavender compact and encourages fresh growth.
 
But pruning too late in fall can leave tender new growth exposed to frost, which sets the plant back.
 

5. Climate and Hardiness

Phenomenal lavender is hardy in zones 5 through 9, which is broader than most lavenders.
 
In colder zones, growth starts later in spring, so the annual growth rate may be slightly slower.
 

How to Make Phenomenal Lavender Grow Faster

If you want your phenomenal lavender to grow as fast as possible, here’s what to do.
 

1. Plant in Spring

Spring planting gives phenomenal lavender a full season to establish roots before winter.
 

2. Add Grit to the Planting Hole

Mixing coarse sand or pea gravel into the planting hole improves drainage and helps phenomenal lavender grow faster.
 

3. Space Plants Properly

Give each phenomenal lavender 24 to 36 inches of space so air circulates freely and roots don’t compete.
 

4. Fertilize Lightly

Too much fertilizer makes lavender floppy, but a light application of compost in spring supports steady phenomenal lavender growth.
 

5. Deadhead Spent Blooms

Removing faded flowers redirects energy into new growth instead of seed production.
 

So, How Fast Does Phenomenal Lavender Grow?

Phenomenal lavender grows at a moderate to fast rate, adding 4 to 6 inches per season and reaching full size in 2 to 3 years.
 
With plenty of sun, sharp drainage, and proper pruning, phenomenal lavender growth can be even quicker.
 
Whether you’re using it as a hedge, a border, or a pollinator magnet, phenomenal lavender won’t keep you waiting long.
 
Plant it, give it the conditions it loves, and watch how fast phenomenal lavender grows in your own garden.