Pruning Russian sage is super easy! The best part is that you don’t have to worry about over doing it, you can’t kill a Russian sage shrub by over-pruning.
Plus there are three pruning techniques you can choose from. Follow these step-by-step instructions to learn how to prune Russian sage plants.
If you have Russian sage (Perovskia atriplicifolia) in your garden, then you know how bad they can look after the winter.
All those dead branches leave your plant looking ugly and half dead. So it’s important to learn how to cut back Russian sage to keep it looking its best all summer long.
But when it comes to pruning plants, Russian sage is one of the easiest to do.
Before we start, I want to mention that there are different types of Russian sage plants. These pruning tips work for all of them! So, no matter which variety you have, you can follow these steps.
Why Should You Prune Russian Sage
Pruning is an important part of Russian sage maintenance. If you don’t prune Russian sage, the plant will become very overgrown and woody, which doesn’t look very nice.
It’s also important to know that Russian sage won’t grow back at the tips of the plant after the winter, and the branches die back towards the bottom of the plant.
So the dead twigs that are sticking out above the leaves in the spring will be there all summer if you don’t prune it.
Related Post: How To Care For Russian Sage
When To Prune Russian Sage
You can prune out the dead growth any time, you won’t harm the plant. But, the best time for pruning Russian sage is in the spring.
I find it easier to wait until the leaves have started sprouting before I prune mine so I know exactly where to cut.
If you prefer, you can prune your plant while it’s still dormant. Since you can’t over-prune a Russian sage bush, you don’t have to worry about exactly where to make your cuts.
Early spring pruning is a good time to shape it if you want a nicely formed, rounded plant.
Tools For Pruning Russian Sage
Russian sage stems are woody, and can be pretty thick in spots, so I recommend using pruning shears for the job.
If you have a large shrub, you can use hedge shears or an electric hedge trimmer to make pruning easier.
I also like to use precision pruning snips for smaller branches and tips if I’m working around tender new leaves.
Whatever garden pruning tools you use, just be sure they are always cleaned and sharpened before you start cutting.
Russian Sage Pruning Techniques
There are three techniques you can use for pruning Russian sage: cut it back all the way down to the ground, trim it for shape, or wait for new growth in the spring.
The last one is the method I like to use, and I’ve included the step-by-step instructions below.
Method 1: Cut It Down To The Ground
If your Russian sage is really woody and hasn’t been pruned before, then you might want to try cutting it all the way down to the ground. This will rejuvenate the plant so it will come back fuller and bushier.
You can use this technique every year to make pruning easier if you want, it won’t hurt the plant.
But only use this method in very early spring while the plant is still dormant, and before the leaves have formed.
If your Russian sage leaves have already started sprouting, then use methods 2 or 3 instead, and wait until next spring to cut it all the way back.
Method 2: Prune It For Shape
With this method, you can use hedge shears or an electric hedge trimmer to shape your Russian sage bush to a nice rounded form.
Like I mentioned above, you can’t kill Russian sage by over pruning it, so you really don’t have to be careful.
In fact, you want to be aggressive with large shrubs. When using this method, cut large plants back to about a foot high.
Method 3: Spring Pruning
This is my preferred method, but it’s also the most tedious. So, I’ve included step-by-step instructions for how to cut back Russian sage using this method below…
How To Trim Russian Sage Step By Step
If your Russians sage plant is small like mine or it’s immature, then it’s best to hand prune it like I do. You don’t have to be very careful here, if you cut too low on the plant, it’s not going to hurt it.
Step 1: Look for the new growth – Find the spot on the branch where there are new leaves. That is usually towards the bottom of the stem, but it can be much farther up on some stems.
If any of the branches are sticking out a lot higher than others, then you can cut them back to the same length so the plant is shapely.
Or you can leave them longer if you don’t care about the shape of the plant.
Step 2: Cut right above the new leaves – Using pruning shears or precision pruning snips, cut back the old stem right above the spot where the new foliage is coming out of the stem.
Try to make the cut as close to the leaves as you can, any part of the dead branch that is sticking out will be there all summer.
When they’re small, the new leaves are very delicate and can break off easily, so be careful. But if you accidentally knock off a few, it’s really not a big deal. They will come back.
Step 3: Remove any dead branches – If you find dead branches that don’t have any new leaves on them, you can cut those down to the ground.
Many times the dead branches will break off easily, so you can just snap them off at the base if that’s easier.
There you have it! I told you pruning Russian sage would be easy. Pruning is an important part of Russian sage care, and it helps to keep your plant looking its best.
You can use any of the three methods every year for all the different Russian sage varieties. Or you can alternate these methods from year to year as you need to keep your healthy and shapely.
Recommended Reading
- The Pruning Answers Book
- Pruning Made Easy
- How To Prune Trees And Shrubs
- The Well Tended Perennial Garden
More About Pruning Plants
- How To Deadhead Petunias By Pinching & Pruning
- How To Prune Chives & Deadhead The Flowers
- How To Prune Roses: A Step-By-Step Guide
- How To Prune Tomatoes For Maximum Production
- How To Prune Hydrangeas Step By Step
How do you cut back Russian sage? Share your tips for pruning Russian sage in the comments section below.
Diane Dean says
My Russian Sage is getting ready to flower. Is it best to let it flower before I prune it back?
Amy Andrychowicz says
Yes, I would recommend waiting until it’s done flowering before you prune it back, otherwise you’ll just cut off all of the flower buds.
Peggy A. Dyro says
Hi Amy I just planted 3 Russian Sage plants and 2 Denim and Lace plants this summer. I put the in top soil and organic compost and they are doing nicely. I live outside of Boston so we get cold winters. My young plants have very tender stems and the tallest are only 1 and a half feet while the smaller two are only a foot tall. They have been planted in full sun and seem happy. I am wary about cutting them back more than an inch or two since their stems are not woody. I have put Black Earth compost around their bases and plan to mulch 2 inches over the winter. Should I do anything else to protect them from snowfall like put burlap around them? Thanks
Amy Andrychowicz says
Wait to until spring to prune your Russian sage, once the new leaves start budding is the best time. As long as you live in a climate where they’re perennial (zones 4-9), then you don’t need to cover them or anything.
Lenora Kimball says
Thank you, Amy.
This material on pruning Russian Sage is terrific. I particularly like the different methods you presented.
I have several clumps that have never performed the way I expected them to. I did not know there were different varieties! And, my assumption that they would be tall & of course, stunning, has been a sad disappointment.
Here in Vermont we still have plenty of snow ~ it’s only April. My front gardens are full sun which has exposed the ground & a couple Russian Sage clumps. In a few minutes I’m going out to prune them as you have recommended!!! This new growing season will be so fun witnessing the growth of my old Russian Sage plantings! Hurray! Cheers everyone!
Amy Andrychowicz says
Great, I’m so glad I was able to help! I hope your Russian sage will be amazing this year!
Jean Kumelos says
I want my russian sage to be smaller. I tried pulling out stems, blut couldn’t. Is there a poisenous solution
I can put on the cut stem to prevent it from growing?
Amy Andrychowicz says
I don’t recommend using poisons. If you want your Russian sage to stop spreading, then I recommend digging up the runners that it sends out below the ground. That’s the best way to keep it in control.
Jean Barlow says
Can I prune my Russian Sage in mid-summer here in North Carolina? I want it to get bushy and fuller.
Amy Andrychowicz says
Yes, it certainly wouldn’t hurt your Russian sage plant if you do some tip pruning to shape it during the summer.
Diane says
Can you tell me how to propagate Russian sage? Ideally I would try to move the plant I have but I am afraid I will kill it. I would like to start new plants from the one I have.
Diane
Amy Andrychowicz says
Yes, you can take 3-4″ stem cuttings, dip them in rooting hormone, and root them in moist soil. I don’t have instructions for Russian sage specifically, but it would be similar to propagating lavender cuttings.
Diane Driscoll says
Thank you!!
Amy Andrychowicz says
You’re welcome!
Jodie Oliver says
Hi Amy! Just came across your sight! Quite helpful! Last fall, Bought and planted a few Denim & Lace variety. My tallest, about 2-1/2 ft, with about six stalks. Had blooms. Getting a
Little water daily and sees Sun all morning until late afternoon. Suddenly it appears to be drying up a d dying 🙁 I’m in zone 9b, warm and dry. My others are still fairly small. Any ideas?
Amy Andrychowicz says
Thank you! It sounds to me like your Russian sage isn’t getting enough water. They are hardy plants, but if it’s dry, hot, and sunny, they may start to suffer without adequate water. I would try watering more often to see if it recovers.
Bev says
I just got my Russian Sage this spring! It is probably 2 ft tall only 2 branches – wondering if I should cut them both back so they will stool out? They have flowers on them as well. Thanks for any help you can give me.
Bev
Amy Andrychowicz says
Yes, if you prune the tips, it will make your Russian sage branch out more.
Dwendt says
Something is mushroom shaped growth at the base of my Russian sage. I pulled it out last year and it seemed to kill half the plant….it is bigger now and the plant seems to have shrunk. What should I do?
Amy Andrychowicz says
Hummm, I’m not sure what that could be. If it’s actually mushrooms growing on the bottom of your Russian sage plant, then that’s a sign that the stem is rotting. Which may mean the plant is getting too much water.
Jan says
I cut my Russian Sage down to nearly the ground in fall after a hard freeze. Did I do harm to them?
Amy Andrychowicz says
Nope, it should grow back just fine. Russian sage does tend to spread more when you cut it down to the ground rather than just pruning the branches back to fresh growth. But they are very hardy, and cutting them down to the ground shouldn’t hurt them.
Mr. J. P. Cole says
Hi Amy,
Many thanks for the Russian Sage info its just what I was looking for as I only planted them this year and our winter in the UK is fast approaching so I was wondering how to deal with the plants when winter arrives.
Best regards…John
Amy Andrychowicz says
You’re welcome.