Geranium Johnson’s Blue Vs Rozanne (Which One’s a Better Choice)

Are you wishing to plant geraniums in your garden? Maybe one of those gorgeous blue geraniums in particular? Then you probably know that the most popular among these are Johnson’s Blue and Rozanne.

So, between geranium johnson’s blue vs rozanne – which one should you go for?

Rozanne has a longer flowering period but doesn’t grow in abundance as Johnson’s Blue. On the other hand, Johnson’s Blue flowers bloom in high intensity. But their flowering period is shorter compared to Rozanne. 

But that’s not all of it. There are a few more aspects to consider before deciding which one to include in your beloved garden.

Curious to know? Then keep reading!

Geranium Johnson’s Blue Vs Rozanne: Brief Overview

Both Johnson’s Blue and Rozanne are hardy Geraniums or Cranesbills. These are perennial plants that come in stunning purple-blue colors.

They start blooming around late spring and keep flowering until mid-fall. But Rozanne has a slightly longer flowering period than Johnson’s Blue. 

A Johnson’s Blue can reach a height of about 30 cm. And Rozanne plants grow up to 40 or 50 cm. Both plants can spread up to 60 cm.

Here’s a table of comparisons between Johnson’s Blue and Rozanne to help you understand their differences quicker and better.

Comparison FactorJohnson’s BlueRozanne
Plant HeightReaches up to 30 cm heightReaches up to 40 or 50 cm in height
Flowering periodHas a shorter flowering periodHas a longer flowering period
Flowering intensityBlooms in abundanceBlooms in an average intensity
MaintenanceEasy to maintainSlightly hard to maintain

Now that we’ve given you an idea, let’s dive into the details!

Johnson’s Blue Vs Rozanne: Detailed Comparison

geranium johnson's blue vs rozanne

Although Johnson’s blue and Rozanne are quite similar, there are a few worth mentioning differences. We’re going to elaborate on them to help you decide which one to pick.

Color, Design, and Overall Appearance

Both Johnson’s Blue and Rozanne are unique and extraordinary. Having these in your garden would change the entire look of it. 

Color-wise you won’t be able to make out much of a difference between them. However, Rozanne appears to be rounder with wider petals and more vibrant colors. 

Johnson’s Blue’s petals are separately arranged and lack a lush look in them. But here’s the thing- they bloom in masses. And that ultimately makes your garden look magnificent.

You can make your Rozanne bloom densely as well. All you need to do is prune them a bit more frequently. That’ll help trigger its growth and result in consistent flowering.

Pruning is in fact quite vital for your overall garden health. A good pruner is important for making your job more efficient. Below I’ve mentioned some of the finest pruners available in the market.

Chances of Survival

Johnson’s Blue and Rozanne, both are hardy perennials. Perennial plants can live for more than three years and are capable of surviving adverse environments and weather. But, there’s a catch.

They might survive through all kinds of adversities, but their appearance might not stay the same.

Rozanne appears to be floppy and a little lifeless when it doesn’t get enough sunlight. It needs about 3 to 4 hours of direct sunlight to keep its fresh look intact.

So you need to be mindful about planting your Rozanne under direct sunlight.

On the contrary, that’s not the case with Johnson’s Blue. It can stay under shade for days and its beauty won’t seem to fade. It acts as the true hardy plant like it’s supposed to. 

However, if your geraniums don’t receive sunlight at all, their leaves may turn white. So, it’s better to keep both Johnson’s Blue and Rozanne where direct sunlight is available.

This problem occurs due to a fungal infection. So just in case, your geraniums get infected, here are some fungicides you can use:

Care and Maintenance

There is a wrong conception regarding Geranium Johnson’s Blue and Rozanne. That is, they don’t need care and maintenance as they are perennial hardy plants. 

Doesn’t matter what kind your plant is, perennial or biennial, you need to care for them to ensure they look lively all the time. 

However, if you ask which one is easier to care for, we’d say Johnson’s Blue. 

As we’ve said before, Rozanne may look a bit lifeless if it’s left uncared. They won’t die, but there are chances you may find them sprawled around.

Now if you’re a regular gardener, it surely won’t be a big problem for you. You just have to take care of them just like you do with your other plants. 

Lack of regular maintenance causes most plants to become weak, stop flowering, produce small or immature fruits, and even die. 

But these geraniums won’t even need too much attention. Just make sure they’re getting sunlight and the soil is dry or well-drained. Also, applying fertilizers from time to time would be enough to make them glow throughout all seasons.

On that note, it’s important that you’re using good quality fertilizers on your plants. Below I’ve recommended some well-known fertilizer brands that’ll work magic on your garden.

Frequently Asked Questions

Question: How do I ensure that my Rozanne is regularly flowering?

Answer: You can ensure that by pruning your Rozanne from time to time. Pruning regularly is important for both Johnson’s Blue and Rozanne. But it’s more important for Rozanne because it lacks consistency at flowering. 

Question:  Should I plant geraniums along with the other plants in my garden?

Answer:  It’s better to use a separate area of your garden to plant geraniums like Johnson’s Blue and Rozanne.  These plants spread around the area they’re planted and seem to spread quite aggressively. So it’s best to not plant other plants around geraniums and vice versa.

Question: When do I need to divide my Geranium Johnson’s Blue and Rozanne?

Answer: At around 5 years of your plant’s age, it’ll start producing fewer flowers. Then you may plan on dividing your geranium. It’s ideal to do it in springtime or early summer.

Final Verdict

So our discussion regarding geranium johnson’s blue vs rozanne has finally come to an end. We’ve tried our best to point out the differences between these geraniums despite them being so similar.

Hopefully, we could help you decide which one of these you’d like to bless your garden with. Let us know in the comments what you have decided. 

Till next time, take care.

Leave a Comment

Your email address will not be published. Required fields are marked *