I bought a tiny little soapwort plant a couple of years ago and I have been waiting patiently for it to grow because I really wanted to try using it for laundry detergent. I found out about soapwort after I started using soap nuts for laundry. I like soap nuts, but they are imported from overseas and can't be grown here as they are considered a weed plant.
Soapwort (Saponaria officinalis) is commonly grown as a flowering plant (unfortunately I don't have a photo of mine in flower). Its leaves and roots contain saponins, which is a chemical that lathers when mixed with water. This makes soapwart an effective cleaner. Soapwart can also be made into a decoction to treat external skin conditions (I haven't tried this), and although it can be taken internally for various ailments, it comes with many warnings, so I haven't tried that either. As soapwort can be poisonous, you need to grow it where grazing animals cannot access it, so I have kept mine in a pot for now. Soapwort is not frost sensitive, but does wilt in hot dry weather. I find it revives if I put the pot in a tub of water for a couple of days. It may do better in the ground though.
The main reason I grow soapwort is for the saponins, and I have been waiting for for it to be large enough to harvest. You can harvest the roots and the leaves, but when I felt around in the pot I didn't think there was much root to harvest, so I just gave it a haircut instead.
Then I strained the mixture through a cheese-cloth and into a large bottle. I ended up with around 5L of soap water liquid. I added about half a litre of vinegar to make it keep longer.
Now the only problem is working out how much soapwort liquid to use in the washing machine! Its very simple for handwashing, you just add more when the bubbles disappear, but with the washing machine I have just been sloshing some liquid in the detergent drawer and hoping its enough. Clothes are coming out clean, so it can't be too bad. I think I will need to grow a lot more soapwort if we were to use this for all our washing, but I very satisfied to know that there is something I can grow and easily process as a soap substitute.
What do you think? Do you grow soapwort?
Want to read my other herb posts?
How I use herbs - Mint, Peppermint and Spearmint
How I use herbs - Aloe Vera
How I use herbs - Basil
How I use herbs - Ginger, galangal and turmeric
How I use herbs - Marigold, calendula and winter taragon
How I use herbs - Lemon balm
How I use herbs - Soapwort
How I use herbs - Comfrey
How I use herbs - Nasturtium
How I use herbs - Parsley
How I use herbs - Borage
How I use herbs - Herb Robert
How I use herbs - Purslane
How I use herbs - Chickweed
How I use herbs - Neem oil
How I use herbs - Rue, tansy and wormwood
How I use herbs - Brahmi
How I use herbs - Yarrow
How I use herbs - Arrowroot
How I use herbs - Lucerne (afalfa)
How I use herbs - Lavender
How I use herbs - Rosemary and Thyme
How I use herbs - Oregano or Marjoram
How I use herbs - Sweet Violet
How I use herbs - Gotu Kola
How I use herbs - Lemongrass
How I use herbs - Coriander (or cilantro)
How I use herbs - Dill
my soapwort plant before I harvested some leaves |
The main reason I grow soapwort is for the saponins, and I have been waiting for for it to be large enough to harvest. You can harvest the roots and the leaves, but when I felt around in the pot I didn't think there was much root to harvest, so I just gave it a haircut instead.
Then I followed the instructions that I found here. I put the leaves in a large pot and covered them in water. I boiled the water for a couple of hours, leaving it to steep overnight.
before boiling |
ready to strain |
Now the only problem is working out how much soapwort liquid to use in the washing machine! Its very simple for handwashing, you just add more when the bubbles disappear, but with the washing machine I have just been sloshing some liquid in the detergent drawer and hoping its enough. Clothes are coming out clean, so it can't be too bad. I think I will need to grow a lot more soapwort if we were to use this for all our washing, but I very satisfied to know that there is something I can grow and easily process as a soap substitute.
What do you think? Do you grow soapwort?
Want to read my other herb posts?
How I use herbs - Mint, Peppermint and Spearmint
How I use herbs - Aloe Vera
How I use herbs - Basil
How I use herbs - Ginger, galangal and turmeric
How I use herbs - Marigold, calendula and winter taragon
How I use herbs - Lemon balm
How I use herbs - Soapwort
How I use herbs - Comfrey
How I use herbs - Nasturtium
How I use herbs - Parsley
How I use herbs - Borage
How I use herbs - Herb Robert
How I use herbs - Purslane
How I use herbs - Chickweed
How I use herbs - Neem oil
How I use herbs - Rue, tansy and wormwood
How I use herbs - Brahmi
How I use herbs - Yarrow
How I use herbs - Arrowroot
How I use herbs - Lucerne (afalfa)
How I use herbs - Lavender
How I use herbs - Rosemary and Thyme
How I use herbs - Oregano or Marjoram
How I use herbs - Sweet Violet
How I use herbs - Gotu Kola
How I use herbs - Lemongrass
How I use herbs - Coriander (or cilantro)
How I use herbs - Dill
Oh, I didn't know you can make sopa out of it! Is it poisonous to chooks and dogs as well? I have to try and get some and find out about it's growing conditions required. I'm still looking for something to make liquid soap out of, this sounds like it's it. Thanks for the info!
ReplyDeleteFrances
Yes the saponins cause poisoning in high doses, it can be taken internally, but you have to be very careful. I'm not sure if its very tasty for chickens or dogs though.
Deleteoh very interesting, I have often wondered about growing this herb.
ReplyDeleteI'll have to add this to this list of things to try one day. I wonder if it grows this far south? Interesting post.
ReplyDeleteI was reading about soapnuts the other day. this would be great to grow one day (when i have more room). do you use this for your washing dishes too?
ReplyDeleteVery Cool. I look forward to hearing how it goes.
ReplyDeleteHad not hear of this! Adding soapwort to my list of herbs I want to grow. Thanks for sharing!
ReplyDeleteHey Liz,
ReplyDeleteThanks for this post! I use soapnuts, but would much prefer to grow my own soapwort. Where did you get the bush from? I'm on the sunshine coast.
This is awesome! So pinning this! Thank you for experimenting and answering so many of my questions so now I don't have to try it blind. Visiting from From the Farm Hop
ReplyDelete