Symphytum officinale, commonly called comfrey, is a large, coarse, tuberous-rooted, clumping perennial (to 3′ tall and 2.5′ wide) that is primarily grown today as an ornamental for its attractive foliage and spring flowers.
Can comfrey survive winter?
They both die back in winter here, although certainly comfrey doesn’t have a long winter. I have mine next to some rhubarb, that’ll co-exist fine. Yes, there will be bare earth in winter, but there’s still life underneath the surface, and it’s nature that makes plants draw back this way.
Is comfrey an annual?
Comfrey (Symphytum officinale) is a perennial flower that grows in clumps naturally along riverbanks and in grasslands.
Does comfrey grow back?
Extremely cold hardy perennials, comfrey plants become dormant in winter and re-emerge every spring.What to do with comfrey after flowering?
Place cut or bruised comfrey leaves in alternate layers throughout your compost heap. Their decomposition will encourage bacterial action causing the heap to heat up and speed up the composting process. Use as a mulch.
Is comfrey banned in Australia?
Comfrey can be used for animal feed in small quantities only – the toxic chemicals that caused comfrey to be temporarily banned in Australia and New Zealand for a short period of time (7 Dec 2015-1 March 2016) can affect animals.
What month does comfrey bloom?
Comfrey blooms once every year between late spring and early summer, and unlike a shrub, can be expected to die back in the winter. It is certified to grow as a perennial in the United States in USDA Hardiness Zones 4-9.
What can I do with comfrey leaves?
- Vigorous comfrey plants regrow after greens are harvested for compost or mulch.
- Garlic is tucked in with a double mulch of chopped comfrey and rotted hay.
- A comfrey root poultice can speed healing of sprains and bruises.
- Use dried leaves to make comfrey tea for houseplants.
How does comfrey spread?
Does Comfrey Spread? … Our comfrey does not produce viable seed and stays in place. It will only spread if disturbed because any piece of comfrey root will make a new plant. So any digging or rototilling near comfrey will result in new plants.
Are borage and comfrey the same thing?Are Comfrey & Borage the Same Plant? Though they are members of the same plant family (Boraginaceae), perennial comfrey (Symphytum officinale, USDA zones 4-8) and annual borage (Borago officinalis) are two different plants. These cousins both boast dark green foliage and fuzzy leaves.
Article first time published onWhat is the difference between common comfrey and Russian comfrey?
Common comfrey (S. officinale) has long been cultivated primarily as a medicinal herb, while prickly comfrey from the Caucuses (S. asperum) is grown mainly as an ornamental. Russian comfrey, which is a hybrid between common and prickly comfrey, comes in many variations and grows mainly independently.
Is comfrey good for compost?
Comfrey out-performs manure, compost and many liquid feeds for concentration of nutrients. It produces these from a deep root system extending right into the subsoil that most edible plants cannot access. It also has an ideal Carbon:Nitrogen ratio which means that it does not hamper absorption of nitrogen by plants.
Is comfrey good for roses?
Roses are tough, resilient things. … Now is not the time to renovate roses by pruning – that’s a winter job. The quickest route to good health at this time of year is liquid feed. Choose organic for the planet or make your own by rotting down either comfrey and nettles or, if you can get hold of it, manure.
Is comfrey good for potatoes?
On potatoes Comfrey has an almost perfect ratio of nitrogen, potash and phosphorous. In comparison with farmyard manure, Hills shows it has more nitrogen, twice as much potash, but less phosphorous. It is an ideal potato and tomato food.
How cold hardy is comfrey?
Originating in the Caucasus mountains of Russia, Comfrey can withstand temperatures of -40° F below zero without winter kill. It thrives in Africa in 120° F heat and with 12 cuttings per year there, they hold the world record yield of over 140 tons per acre.
Will deer eat comfrey?
Deer prefer plants that do not have a strong taste. … Some plants, like lamb’s ear (Stachys bizantina) and comfrey (Symphytum sp), have fuzzy foliage that does not bode well on a deer’s tongue.
How do you stop comfrey from spreading?
Cut sheets large enough to cover the comfrey patch from a roll of 1-millimeter black plastic mulch, using scissors. If you have a large comfrey patch, cut an extra sheet or two so you can overlap them and prevent the comfrey from growing through. Plastic mulch usually comes in 3-, 4- and 5-foot wide rolls.
Do chickens eat comfrey?
“Comfrey is well-suited as a feed for chickens. Chickens’ digestive systems are not equipped to handle much fiber. Comfrey is low in fiber and high in protein and minerals, especially when cut regularly.
Is comfrey poisonous to dogs?
The Merck Veterinary Manual lists comfrey as an especially risky herb because of its pyrrolizidine alkaloids, which have been linked to liver damage. The alkaloids are actually produced by the herb to fend off bugs, but the insecticide can be harmful to a dog.
Do bees like comfrey?
Comfrey (Symphytum officinale) It has a long flowering period that’s loved by bumblebees, especially species with long tongues. Flowers: May to August. Comfrey is a fantastic garden plant – bees love it and you can used it to make a fertiliser!
Is comfrey good for tomatoes?
Comfrey has very deep roots, which means it extracts large quantities of nutrients from far below the soil’s surface, inaccessible to other plants. … It’s especially rich in potassium, making it the ideal feed to promote flowers and fruits in a range of plants, including tomatoes.
What does comfrey do in the garden?
Comfrey’s roots break up heavy clay and creating channels for aeration and better water absorption, similar to dandelion roots. Over time, its decomposing leaves and roots enrich and condition the soil. This dual action of decomposing leaves and roots can help improve marginal land.
Do slugs eat comfrey?
Sacrificial Comfrey, Sharp Stuff, and Slug Races ‘Slugs love comfrey! ‘ says the book, before advising the reader to plant comfrey in slug hotspots. After a couple of days, pick the greedy guts off the comfrey and dispose of as you see fit.
Why was comfrey banned?
The pyrrolizidine alkaloids in comfrey can cause severe liver damage, liver cancer, mutagenicity, and even death. [8,9] For this reason, the U.S. Food and Drug Administration has banned the sale of oral comfrey products in the United States.
Is comfrey a carcinogen?
Comfrey contains pyrrolizidine alkaloids that are both hepatotoxic and carcinogenic (13), and there is extensive literature concerning hepatotoxicity with use of oral comfrey (5) (6) (7) (8) (9) (10).
When was comfrey banned?
In 2001 the U.S. Food and Drug Administration banned comfrey products marketed for internal use.
Are comfrey roots invasive?
Because it is a very deep root, it is extremely difficult to eradicate once established. … Between the self-seeding and root regrowth, comfrey can become invasive. There is a sterile species of comfrey, Symphytum x uplandicum ‘Bocking 14’, which eliminates the self-seeding problem in the garden.
How do you mulch with comfrey?
- Mulch: Leaves can be cut and left to wilt for a couple of days before piling them around hungry plants such as potatoes and tomatoes as a thick mulch.
- Dig in: Wilted leaves can be dug into ground that is being prepared for a new crop and will break down to give an excellent feed.
Can comfrey handle frost?
Frost tolerant Extremely cold hardy perennials, comfrey plants become dormant in winter and re-emerge every spring.
Can you eat comfrey flowers?
The risks of eating comfrey Today, eating or taking any form of comfrey by mouth isn’t recommended. It’s considered unsafe, due to the pyrrolizidine alkaloids that comfrey contains. These are dangerous chemicals that can cause cancer, severe liver damage, and even death when you consume them.
Which is better comfrey root or leaf?
Comfrey is even believed to help decrease inflammation of tendon sheaths (Tilgner, 2018), supporting its use for joint sprains. While both comfrey leaf and root are well known for their mucilage content and associated demulcent action, the root is more demulcent than the leaf.
