How to Make Comfrey Tea for Your Garden

How to make comfrey tea to fertilize your garden

Two years ago I bought some comfrey roots; those plants are thriving in my garden now. Comfrey has so many uses: medicinal, livestock feed, compost activator and more. I feed it to my goats, I make salves and ointments with it, I add leaves to my compost pile. But this is the first year I'm making comfrey tea and using it as fertilizer in my garden.

This post contains affiliate links. Read my full disclosure here.

I have to admit that in the past I've neglected to fertilize my garden plants. I was building my soil and I thought that was enough. About halfway through summer my plants would sort of give up and go on vacation. I think they were just tuckered out and needed a boost from a good organic fertilizer.

This year I bought some fish emulsion fertilizer from Amazon, but I've also read that fertilizer made with comfrey is terrific for the vegetable garden, so I'm also trying that this summer.

Wait, you're not growing comfrey? Here's why you should!

All plants need nitrogen, phosphorus and potassium - and comfrey has all three. Nitrogen promotes leafy growth, phosphorus provides the vigor needed to fight off disease and pests, and potassium promotes flower and fruit production. Comfrey is one of the few plants that contains potassium, an essential nutrient that vegetable plants need to produce fruit.

How to make comfrey "tea" for really good tomatoes!

Comfrey also contains trace minerals and nutrients that other plants need for optimum growth and health. Comfrey has a very long root system - some sources say that the roots will go down twenty feet or more into the ground - which brings those minerals from deep underground up into the plants' leaves.

To make comfrey tea, fill a 5-gallon bucket about 3/4 full with comfrey leaves.

Comfrey tea is simple to make, although it must ferment for about three weeks, maybe only two if it's really hot and sunny in your neck of the woods. Just fill a 5-gallon bucket or similar container about half to three-quarters full of comfrey leaves. 

To make comfrey tea fertilizer, fill a 5-gallon bucket with chopped comfrey leaves and fill with water.

Chop or cut the leaves in rough pieces if you'd like. I left mine whole. I use gloves when I'm harvesting comfrey leaves, they are hairy and a bit prickly.

How to make comfrey manure tea for your garden.

I've read that you should weigh down the leaves in the bucket with a rock or brick to hold them under the water, but I didn't do this. Fill the bucket with water, put a top on it to keep out flies, and leave it in the sunshine for about two to three weeks. You can stir it occasionally but it isn't really necessary.

When the comfrey "tea" is finished it will be a stinky smelly mess, but your plants will love it!
After one week. Pretty nasty-looking, isn't it?

When it's "done" it will be a stinky mess, but your plants will love it! Strain out the leaves if you want; you can add them to your compost pile. Dilute your tea before you apply it to your plants with at least an equal amount of water in a watering can, and bless your plants with goodness!

To have Oak Hill Homestead's new posts delivered to your inbox, click here.

Comfrey tea is potent so remember that less is more. Some gardeners dilute it even more, and water their plants with this weaker tea every two weeks.

If you'd like to make worm casting tea for your garden instead of (or in addition to) comfrey tea, check out Making Worm Casting Tea the Easy Way from Stone Family Farmstead.

Here's to a great garden and really good tomatoes!

How to make comfrey tea.

How to make comfrey tea fertilizer for your garden.

This post contains affiliate links. Read my full disclosure here.

This post has been shared at some of my favorite blog hops.


My hope is to inspire you, and to encourage your homesteading plans and your dreams of a simple, self-reliant, God-dependent life. You can follow me at:
Facebook | Pinterest | Subscribe


  1. This sounds very simple, I just need to plan ahead. How have I not heard of this before? I definitely need to try it.

    1. It really is simple, Michelle, and takes just minutes to fill a bucket with leaves and water. The hard part is waiting 2-3 weeks until it's ready to use, but there's NO input of our time during that part. Will you give it a try?

  2. Fascinating. I liked learning about how they grow deep roots which help bring up nutrients from down there. I may have to try growing it and then using it for fertilizer! Thanks for sharing on the #WasteLessWednesday blog hop.

    1. Katy, it's easy to grow and so beneficial in so many ways. Just hold your nose when you're making the tea!

  3. I have made different teas for the garden but this one is different. Can't wait to give it a go. Found you on Simple Homestead Blog Hop.

  4. Thanks for this information. I am hoping to establish comfrey soon!

  5. I love my Comfrey, I do a lot of cut and drop of the leaves around the plants. I do make comfrey tea for the garden. I find this is a great tea to use to feed the cane fruits once during the flowering stage and once again for fruiting time.

    Came over from the blog hop :)

  6. This is a great idea! I have been looking for a natural fertilizer for my garden, and like you, have just been focusing on my soil. I'll be pinning this for later. Thank you so much for the info! #homesteadbloghop

  7. I did not know about Comfrey Tea as a fertilizer. Thanks for sharing at The Homestead Blog Hop!

  8. Have you tested it side by side with other fertilizers and just plain water as a control? I’ve seen a lot of folks swear by stuff they never tested. I’ve also seen many claim you have to use aerators for any variety of compost tea (and I don’t know that they have tested that either). I like to test all these things so I know what is real and what isn’t worth the time and effort. I chop and drop comfrey all over and I make compost tea in my rain barrels and I always omit some plants/trees to see if it’s actually working / worth the effort, aka testing. Some things work, some don’t, it’s nice to know which.

  9. We need to get some comfrey growing. We used to have some, but it didn’t survive the move.

    This looks like a great way to get almost free fertilizer! I hate the fish emulsion but the cats and plants really do love it.

    Glad we could feature your post this week at the Homestead Blog Hop!



Thank you for stopping by. I hope you will leave a comment - I would love to hear from you. If you wish to email me instead, please click here. Thank you!