Square Foot Gardening Forum
[table bgcolor=#000000 height=275][tr][td]

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.


[/td][/tr][/table]
Search
 
 

Display results as :
 

 


Rechercher Advanced Search

Latest topics
» My SFG Journey:Returning to the Original Square Foot Garden Method
by has55 Yesterday at 11:12 pm

» N&C Midwest - September 2017
by Scorpio Rising Yesterday at 10:29 pm

» Sowing Experiment! Anyone Tried This?
by Scorpio Rising Yesterday at 10:13 pm

» Bug/Pest Identification....Help!
by brianj555 Yesterday at 6:43 pm

» Caterpillar - Good or Bad?
by BeetlesPerSqFt Yesterday at 6:42 pm

» Mushroom in my lettuce!
by BeetlesPerSqFt Yesterday at 6:21 pm

» What is this? Plant identification?
by BeetlesPerSqFt Yesterday at 5:48 pm

» New England September 2017
by sanderson Yesterday at 5:35 pm

» Today's Harvest
by sanderson Yesterday at 5:32 pm

» Roasted butternut squash soup
by sanderson Yesterday at 5:06 pm

» What I learned this year
by sanderson Yesterday at 5:05 pm

» What are you eating from your garden today?
by sanderson Yesterday at 5:02 pm

» Third Year SFG in Canada
by trolleydriver Yesterday at 1:58 pm

» Flavor bomb cubes for veggies and...
by hammock gal Yesterday at 12:35 pm

» Carrot Week 2017!
by CapeCoddess Yesterday at 10:55 am

» How's the Weather Where You're At?
by trolleydriver Yesterday at 9:02 am

» Frankensquash
by trolleydriver 9/24/2017, 10:20 pm

» Compost Heaps
by brianj555 9/24/2017, 5:09 pm

» Fall Garden?
by sanderson 9/24/2017, 4:46 pm

» Cucumber Plants on the Ground! :-(
by brianj555 9/24/2017, 4:40 pm

» Hello from NE OHIO
by Scorpio Rising 9/24/2017, 3:19 pm

» Any Strange and Wonderful Visitors? Photos please!
by hammock gal 9/24/2017, 8:59 am

» Happy Autumn Equinox
by brianj555 9/23/2017, 11:24 am

» Amaranth
by AtlantaMarie 9/23/2017, 8:44 am

» Northern California & Coastal Valleys - What are you doing this month?
by trolleydriver 9/23/2017, 7:25 am

» Spotted Lanternfly: invasive pest "new" to the US
by sanderson 9/21/2017, 1:41 pm

» First red kidney bean harvest....now what?
by AtlantaMarie 9/21/2017, 6:28 am

» question about Garlic and winter
by Scorpio Rising 9/20/2017, 6:38 pm

» Ginger
by has55 9/20/2017, 2:38 pm

» CANADIAN REGION: What are you doing in September 2017
by Kelejan 9/20/2017, 2:29 pm

Google

Search SFG Forum

Comfrey

Page 3 of 3 Previous  1, 2, 3

View previous topic View next topic Go down

Re: Comfrey

Post  countrynaturals on 7/9/2017, 6:26 pm

Ginger Blue wrote:
sanderson wrote:I just searched for seeds and all I found was "Annie's Heirlooms."  Another, a Comfrey farm sells root and crown cuttings.  CN, would you be interested in splitting an order of roots or crowns?  I'll work up the cost and let you know.  I'm thinking 12" pots for mine.  Or maybe we could just split a seed packet.  Cheaper that way. ??

Sanderson, I purchased a packet of seeds from Outsidepride, last year.  I'll be sending some to CN tomorrow and will be happy to share with you, as well.  Nothing on the package indicates these are a special variety, so I suspect they're true comfrey and may be invasive unless contained.  Let me know if you'd like some.

GB
I really messed up on my seed-starting this year and lost track of what I planted. Turan and Beetles identified these as comfrey, which means they came from you. Thanks, GB. Right now these babies are in the house, safe from our triple-digits. Should I keep them inside and protected or try putting a couple outside in the "real world" to toughen up?


Today it's too hot to play outside, so I'm binge-watching Youtube garden videos. I just watched one that says to use comfrey leaves as mulch around tomato plants. Anybody try this?
avatar
countrynaturals

Female Posts : 2536
Join date : 2016-04-12
Location : Redding, CA

View user profile http://countrynaturals.com

Back to top Go down

Re: Comfrey

Post  countrynaturals on 7/9/2017, 6:32 pm

CapeCoddess wrote:
countrynaturals wrote:The original link is broken, so, why do I want to grow comfrey?

The leaves are a great addition to the compost pile where I use it in place of manure.  I cut it back 2 or 3 times a year for that purpose.  You can also make comfrey tea to water or spray your plants with.    
Medicinal example: I taped a piece of leaf on a festering wound my mother had that wouldn't give up the ghost, and the next day it completely drained and then healed quickly.
This is awesome! I just lost my main manure source -- both of our sweet horses died in the past month and we aren't getting any more. Sad I still have chicken and rabbit manure, but not in large quantities. If comfrey can be a manure substitute, that is great news. cheers
avatar
countrynaturals

Female Posts : 2536
Join date : 2016-04-12
Location : Redding, CA

View user profile http://countrynaturals.com

Back to top Go down

Re: Comfrey

Post  countrynaturals on 7/9/2017, 6:46 pm

camprn wrote:I've comfrey in my garden, dont baby it and it thrives. My advice to those planting your first comfrey, consider carefully where you put it as you will never be able to get rid of it.
That's one of the great things about our hot, dry climate. Nothing can ever spread beyond the boundaries I set, because there's no water. Razz
avatar
countrynaturals

Female Posts : 2536
Join date : 2016-04-12
Location : Redding, CA

View user profile http://countrynaturals.com

Back to top Go down

Re: Comfrey

Post  countrynaturals on 7/9/2017, 7:13 pm

trolleydriver wrote:Interestingly, the Government of Canada does not like comfrey and says it is a poison when ingested as a herbal medication because it causes liver damage.
According to Sloan Kettering:

  • Comfrey contains compounds that are toxic to the liver and can cause liver cancer.


So, if we use it as mulch or in our compost, are we spreading carcinogens to our soil and on to the plants we eat? 
avatar
countrynaturals

Female Posts : 2536
Join date : 2016-04-12
Location : Redding, CA

View user profile http://countrynaturals.com

Back to top Go down

Re: Comfrey

Post  BeetlesPerSqFt on 7/9/2017, 7:39 pm

countrynaturals wrote:
trolleydriver wrote:Interestingly, the Government of Canada does not like comfrey and says it is a poison when ingested as a herbal medication because it causes liver damage.
According to Sloan Kettering:

  • Comfrey contains compounds that are toxic to the liver and can cause liver cancer.


So, if we use it as mulch or in our compost, are we spreading carcinogens to our soil and on to the plants we eat? 
It seems more likely that bacteria break the compounds down again, detoxifying them.
avatar
BeetlesPerSqFt

Female Posts : 1180
Join date : 2016-04-11
Location : Port Matilda, PA Zone 5b/6a

View user profile

Back to top Go down

Re: Comfrey

Post  countrynaturals on 7/9/2017, 8:07 pm

BeetlesPerSqFt wrote:
countrynaturals wrote:
trolleydriver wrote:Interestingly, the Government of Canada does not like comfrey and says it is a poison when ingested as a herbal medication because it causes liver damage.
According to Sloan Kettering:

  • Comfrey contains compounds that are toxic to the liver and can cause liver cancer.


So, if we use it as mulch or in our compost, are we spreading carcinogens to our soil and on to the plants we eat? 
It seems more likely that bacteria break the compounds down again, detoxifying them.
I like the sound of that. thanks, Beetles.
avatar
countrynaturals

Female Posts : 2536
Join date : 2016-04-12
Location : Redding, CA

View user profile http://countrynaturals.com

Back to top Go down

Re: Comfrey

Post  BeetlesPerSqFt on 7/10/2017, 6:59 am

countrynaturals wrote:
BeetlesPerSqFt wrote:
countrynaturals wrote:
trolleydriver wrote:Interestingly, the Government of Canada does not like comfrey and says it is a poison when ingested as a herbal medication because it causes liver damage.
According to Sloan Kettering:

  • Comfrey contains compounds that are toxic to the liver and can cause liver cancer.


So, if we use it as mulch or in our compost, are we spreading carcinogens to our soil and on to the plants we eat? 
It seems more likely that bacteria break the compounds down again, detoxifying them.
I like the sound of that. thanks, Beetles.
Here's more, I didn't have enough time to find an article last night. The toxic compounds are pyrrolizidine alkaloids (PAs). This article studied PA degradation from plants other than comfrey - but PAs are all similar molecules so the results are relevant. The scientists say "Pyrrolizidine alkaloids and taxines were shown to degrade completely during the composting process."
https://www.ncbi.nlm.nih.gov/pubmed/20579691
avatar
BeetlesPerSqFt

Female Posts : 1180
Join date : 2016-04-11
Location : Port Matilda, PA Zone 5b/6a

View user profile

Back to top Go down

Re: Comfrey

Post  countrynaturals on 7/10/2017, 11:51 am

BeetlesPerSqFt wrote:
countrynaturals wrote:
BeetlesPerSqFt wrote:
countrynaturals wrote:
trolleydriver wrote:Interestingly, the Government of Canada does not like comfrey and says it is a poison when ingested as a herbal medication because it causes liver damage.
According to Sloan Kettering:

  • Comfrey contains compounds that are toxic to the liver and can cause liver cancer.


So, if we use it as mulch or in our compost, are we spreading carcinogens to our soil and on to the plants we eat? 
It seems more likely that bacteria break the compounds down again, detoxifying them.
I like the sound of that. thanks, Beetles.
Here's more, I didn't have enough time to find an article last night. The toxic compounds are pyrrolizidine alkaloids (PAs). This article studied PA degradation from plants other than comfrey - but PAs are all similar molecules so the results are relevant. The scientists say "Pyrrolizidine alkaloids and taxines were shown to degrade completely during the composting process."
https://www.ncbi.nlm.nih.gov/pubmed/20579691
thanks
avatar
countrynaturals

Female Posts : 2536
Join date : 2016-04-12
Location : Redding, CA

View user profile http://countrynaturals.com

Back to top Go down

Re: Comfrey

Post  trolleydriver on 7/10/2017, 12:32 pm

In the study, what do they mean by 1200 degrees C cumulative temperature?

____________________________

Ottawa, Canada
Find more about Weather in Ottawa, CA
Click for weather forecast
avatar
trolleydriver

Forum Moderator

Male Posts : 3689
Join date : 2015-05-04
Age : 70
Location : Ottawa, Ontario, Canada

View user profile

Back to top Go down

Re: Comfrey

Post  BeetlesPerSqFt on 7/10/2017, 2:56 pm

trolleydriver wrote:In the study, what do they mean by 1200 degrees C cumulative temperature?
I can't get to the article, but here's a definition
https://www.merriam-webster.com/dictionary/cumulative%20temperature

The abstract says the cumulative temperature is for about 3 months, so about 90 days. 1200/90 = 13 1/3
If the reference temperature is 42*C, adding 13 gets to 55*C (~131*F.) This temperature makes sense for an average hot composting temperature.
avatar
BeetlesPerSqFt

Female Posts : 1180
Join date : 2016-04-11
Location : Port Matilda, PA Zone 5b/6a

View user profile

Back to top Go down

Re: Comfrey

Post  sanderson on 7/11/2017, 2:12 am

Very interesting.

____________________________

Find more about Weather in Fresno, CA
Click for weather forecast
avatar
sanderson

Forum Moderator Certified SFG Teacher

Female Posts : 14609
Join date : 2013-04-21
Age : 68
Location : Fresno CA Zone 8-9

View user profile

Back to top Go down

Re: Comfrey

Post  BeetlesPerSqFt on 7/11/2017, 7:13 am

Here's another article relevant to composting poisonous plants:
https://laidbackgardener.wordpress.com/tag/can-you-compost-poisonous-leaves/

Summary - Yes: rhubarb, walnut leaves, foxglove, and nettles    No: poison ivy/oak/sumac
avatar
BeetlesPerSqFt

Female Posts : 1180
Join date : 2016-04-11
Location : Port Matilda, PA Zone 5b/6a

View user profile

Back to top Go down

Re: Comfrey

Post  CapeCoddess on 7/15/2017, 4:02 pm

I just cut down a stock of comfrey and blended the leaves in the Vitamix with some filtered water. I then divided the mix between 3 five gallon buckets of water and proceeded to water my sfg veggies with that. Has anybody tried this? If so, what were the results?
CC
avatar
CapeCoddess

Posts : 6425
Join date : 2012-05-20
Age : 61
Location : elbow of the Cape, MA, Zone 6b/7a

View user profile

Back to top Go down

Re: Comfrey

Post  Sponsored content


Sponsored content


Back to top Go down

Page 3 of 3 Previous  1, 2, 3

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum