You are here:

Carnivorous Plants/Sarracenia Rhizome Die-off


I have a S. flava AG3 that I got from you guys a while ago and it was doing great all the way up to this winter. It was really big and was enjoying the Oklahoma summers (despite the heat) in full sun. But as it was sending a flower up this spring, we had a huge hail storm that shredded a lot of my plants, leaving me just five of the ten or eleven flowers I was to have this year. this flava's flower bore a little damage, but not too much. Anyway, as the growing season has worn on, its growing points have one by one been slowly dying from the rhizome up. This is super weird because I've been watering them every day and they receive full sun and are growing in your recommended soil mixture. This is also beginning to happen to my alata x minor––it's leaves on some of the growing points are beginning to shrivel as if they are drying out and the rhizome is turning brown. Additionally, when these die back, it's a whole chunk of the rhizome that dies completely–– the roots are still mostly alive but the rhizome on top isn't–– and its made my magnificent AG3 shrink to half the size it started the year out with. What is happening? Is it a virus or a pest even? Thanks for your help.

Hi Jonathan,

When this happens 90% of the time it's from Botrytis mold.  I can be caused by certain combinations of weather conditions, and the damage you described may have helped introduce it through damage to the rhizomes.

Here's what you need to do.  Unpot any of the plants that are showing symptoms.  Get a sharp knife or sharp pair of scissors and cut away any parts of the rhizome that are brown.  You'll need to be very ruthless about this.  You only want to see nice white rhizome material.  After all the dead material is gone, saturate the rhizome with a sulfur fungicide spray, then repot in fresh media.  Be sure not to use any old soil since it may have the mold in it.  After repotting it will take the plants time to recover, but if you don't do this they'll die anyway.  Spray the plants with the fungicide every couple of weeks, but follow the directions on the package for dosage intervals.  Be sure not to spray when it's hot; late evening is best.

The other pest that could cause your symptoms is Sarracenia Root Borer, but if it's those, you'll see the worm when you cut the rhizome.  (They can also help introduce Botrytis.)  The root borer is a native pest of Sarracenia and can be treated with a systemic insecticide such as imidacloprid found in Bayer products.  If you do find these, do the same thing mentioned above, but I'd recommend spraying with Bayer 3 in 1, since it has both an insecticide and fungicide.  Here's more information:

Links to our Insecticide/Fungicide podcasts:

Good Growing!

Jeff Dallas
Sarracenia Northwest

Carnivorous Plants

All Answers

Answers by Expert:

Ask Experts


Sarracenia Northwest


If your carnivorous plant is showing poor growth, discoloration, abnormal leaves or possible infestation, the expert growers at Sarracenia Northwest can help! They have a great depth of experience dealing with diseases, pathogens, and abnormal growth in carnivorous plants.

Before submitting your question, please read their care guides on their main website. Many issues can be addressed by simply adjusting your growing conditions as recommended in the care guides. Click here to read the care guides.

Over 8,800 questions answered since 2005!


Jeff and Jacob are owners and growers of Sarracenia Northwest. They've been in business since 1995. Watch their professionally produced DVDs, Grow Carnivorous Plants. It is a three-volume set that covers all aspects of carnivorous plant care. They literally show you how to be a successful grower!


No terrariums. No myths. No nonsense.
Just the straight facts from guys who grow and propagate
thousands of carnivorous plants each year.

Our focus is to help help growers diagnose a specific plant problem and offer solutions. For example:
  • Why is my sundew not producing dew?
  • Is now a good time to divide my Sarracenia?
  • Why are the traps turning black?
  • What's a good substitute for perlite?
  • Why didn't my seeds germinate?
  • How do you deal with pests?
  • Can you identify this carnivorous plant for me?
We no longer answer general, how-to questions that are already posted on our website or demonstrated in our DVDs. For general plant care, please read our care guides:

For business questions:

Youtube Facebook
Follow us on Youtube and Facebook!

©2016 All rights reserved.