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MiHale

(10,900 posts)
Sat Sep 16, 2023, 10:12 AM Sep 2023

I've talked about Comfrey a lot, some facts...

Last edited Sun Mar 24, 2024, 08:23 AM - Edit history (1)

In this group and the Cannabis group I mention using Comfrey for my main fertilizer, I feel like it’s time to present some facts and a tutorial on how I use it in the winter inside.


Comfrey is high in potash, aka potassium (the “K” in NPK fertilizer ratios), which means it’s an excellent feed for overall plant health and particularly good for tomatoes and flowers later in the season. One source says that comfrey has more than twice as much potassium as farm manure and 30% more than compost. The NPK (nitrogen-phosporous-potassium) breakdown of comfrey leaves is 1.80-0.50-5.30 for true comfrey and that last number bumps up to 7.09 for Russian comfrey. On “Gardener’s World,” good ol’ Monty Don made comfrey tea and then watered his plants with it. He also used it as a foliar feed. And he used a big bunch of leaves as mulch for his tomatoes. Just slapped them right on there. They will feed the soil as they decompose. And anything that was left, including the stems, was thrown in the compost pile where it kick starts a pile that’s a little heavy on browns (i.e. carbon-based material). And another source claims that earthworm farms have found that adding comfrey to their worm beds increases worm numbers by 400%. Even if that’s an exaggeration, imagine what it could do for the worms in my compost bin.



https://www.theimpatientgardener.com/growing-my-own-fertilizer/

How I prepare comfrey for the winter. After I cut the leaves from the plant, I chop and dry the leaves. Here’s my method.



I’ll stack the leaves on top of each other and trim off the stems, saving them for later use. Like stacking basil getting ready for a chiffonade cut.





Rolled into little packets getting ready for the knife.




Sliced one way than the other to get smaller pieces.



Then those pieces are put on a tray and air dried. I’ll run the knife through that pile to process it even smaller. All the juices holding all the nutrients from the leaves is preserved inside the leaves

After its dry I’ll store it in airtight containers. Then I can mix it into the soil as one part of primary amendments to new soil. During vegetative growth I “side dress” right into the pot, the comfrey breaks down rather rapidly feeding the plants. Dried it also give me the opportunity to rehydrate and use the tea as a foliar feed or mix with worm castings and mycorrhiza powder and brew a powerful mix for watering the roots.

That mix is brewed for about 24 hours while being aerated with a bubble stone. That brew is good for about a day. The microbes will run out of food after the day so use it quickly. I do this probably once a month for indoor grows.



All done…ready for use.











10 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
I've talked about Comfrey a lot, some facts... (Original Post) MiHale Sep 2023 OP
Really interesting. Easterncedar Sep 2023 #1
If you ever made the tea... MiHale Sep 2023 #2
Thanks for that, too! Easterncedar Sep 2023 #3
Caution however - toxic to dogs lostnfound Sep 2023 #4
And people, it sounds like (when ingested): sl8 Sep 2023 #5
Toxic to people also... MiHale Sep 2023 #6
yes, external is the way to go ShepKat Sep 2023 #7
That's how I use it... 2naSalit Sep 2023 #8
Hey 2na! MiHale Sep 2023 #9
I just handed off... 2naSalit Sep 2023 #10

MiHale

(10,900 posts)
2. If you ever made the tea...
Sat Sep 16, 2023, 10:22 AM
Sep 2023

It really stinks…like an open septic tank. That smell is not all that pleasant in a closed environment. We’ve turned our attached garage into a grow house and workout room had to find a way to use Comfrey without the odor.

lostnfound

(16,720 posts)
4. Caution however - toxic to dogs
Sat Sep 16, 2023, 10:39 AM
Sep 2023

“The leaves and roots of comfrey contain pyrrolizidine alkaloids, which can damage the liver of dogs. If this herb is consumed on a regular basis, it may facilitate the development of cancer. Thus, do not let dogs anywhere near comfrey.”

Our puppies eat plants in the yard with annoying persistence.

MiHale

(10,900 posts)
6. Toxic to people also...
Sat Sep 16, 2023, 11:01 AM
Sep 2023

Even though in past days it was used for medicinal purposes orally. I make a salve from it for topical use for aches and pains, still must use sparingly. But it really works.

ShepKat

(432 posts)
7. yes, external is the way to go
Sat Sep 16, 2023, 12:13 PM
Sep 2023

known as 'the bone knitter' which is weird because boneset is for colds and comfrey is for knitting bones ? I think they mis-named them lol

2naSalit

(93,562 posts)
8. That's how I use it...
Sat Sep 16, 2023, 01:27 PM
Sep 2023

Last edited Sat Sep 16, 2023, 05:46 PM - Edit history (1)

I make a salve for my aching, arthritic muscular/skeletal issues.

I think I'll try using it in gardening next year, though.

MiHale

(10,900 posts)
9. Hey 2na!
Sat Sep 16, 2023, 04:57 PM
Sep 2023

Doing good? Everything is starting to go to sleep here. Been busy processing elderberries, tomatoes, potatoes, fun times.

The last salve I made I added a very generous amount of meadowsweet and horsetail fern.

https://www.mountsinai.org/health-library/herb/horsetail

https://wa.kaiserpermanente.org/kbase/topic.jhtml?docId=hn-2129002&secId=tu6409

I’ve only made it once and just threw it together, no real measurements. Chopped it all together put it in an Infuzium 420 machiner. Kinda like a Magical Butter machine truthfully I fell for the looks. Good marketing.

It’s awesome! I made a batch in the regular way according to the machine presets. Let it sit overnight and ran again increasing the heat by 5 degrees.

The benefits of Comfrey, the aspirin effect from the Meadowsweet, skin and cell building of the field horsetail. My dry skin never looked better. Aches and pains stay away for a couple or three days. Most of the neighborhood has benefited so far.

Gonna measure out stuff later this year after everything dries and share the recipe.

It’s been fun!

2naSalit

(93,562 posts)
10. I just handed off...
Sat Sep 16, 2023, 05:51 PM
Sep 2023

A couple pounds of dried hemp (high end CBD stuff, still very potent) to a couple friends for their remedy making adventures. I add that to many of my salves but I make mine the old school way by cold infusion which requires time more than anything. Everything still turns out well, just have to plan ahead. I need to make another batch of comfrey salve, everybody I make it for is running out.




I like the horsetail and meadowsweet tips, I've never used them before for anything.

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