Writing about the possible benefits of invasive plants, I had the fear that for most broad-leafed weeds it would be easy to find medicinal and other value, but that for grasses, I might have to pass. Interestingly, grasses have some good sides, too – even a such-maligned, horrible weed as crab grass.
Crab grass (also called “finger grass” because of its spiky inflorescences, or “fonio”, for African plants) are actually several Digitaria species – “Digitaria” again meaning “finger-like”.
Why is crab grass the proverbial weed? It turns out that “crabs” can’t take hold in a well-watered, well-fertilized lawn. But let that lawn be neglected, and develop some bald spots – that’s where the annual crab grass will move in, taking advantage.
A lawn usually consists of perennial grasses that stay green long into fall and often into winter. Crab grass would be fine to be intermingled, if it would not die by the end of summer and will leave a bald spot – especially if you pull it and do not immediately reseed with normal lawn seed. In that bald spot, its many, many seeds can take hold again. Crab grass’ trick is its long germination period: It might die early, but it can germinate basically all year, as long as there is no snow on the ground. Usually, a bald crab grass spot extends thus from season to season, always looking awful in the fall, showing your neighbors that you are a less-than-perfect gardener.
Remedy? Keep your grass healthy, well-fed, well-watered, well-limed, and reseed in fall and spring, so that crab grass seedlings have no chance.
So, what for is this invasive grass good? For cows and other ungulates like deer crab grass is as nutritious as any other grass; even more so, because of its high protein contents. Sub-Saharan Africa people eat the milled crab grass seeds in porridge and bread. The problem with crab grass is that it germinates and ripens its seed willfully throughout the year. Therefore it must be hand-harvested, defying large-scale cultivation. However, early settlers in America purposefully would till a spot in the spring so that crab grass could grow there, for the grazing of the animals later in the year.
Crab grass (like Bermuda grass) is a warm-weather grass. As such, it accumulates less sugar than a perennial grass - it does not intend to stay around for the winter, needing staying power through the winter. That makes crab grass better digestible especially to horses who might be quite sensitive to a high sugar and starch content – which bloats them, causing colic. So, as hay, crab grass is quite desirable.
Crab grass contains non-trivial amounts of magnesium, phosphorus and calcium – important for bone health, and some vitamin A, folate, and retinol; they might account for its use in eye health: Medicinally, crabgrass infusion is said to be helping against cataracts and feebleness. I probably won’t use it exactly for that purpose. But just knowing that crab grass is not poisonous will land it in my garden teas from now on. Read More
Blog: On Health. On Writing. On Life. On Everything.
Herb Of The Year 2011: Horseradish
May 7, 2011
This should be the International Herb Day 2011 – but it seems several organizations compete with their dates.
So, I am making it my own Herb Day. I started the day with an herbal tea from stinging nettle, dandelions, ginger, chives, mints, and a dash of green ground Japanese tea called macha - to open my eyes.
My breakfast consisted of – you know my routine by now - congee (Chinese rice soup from brown rice) with sauerkraut and pickled grape leaves. They are my own harvest from last year, just cooked in rice vinegar and frozen, high in resveratrol, and a real pest in the garden! What is more delightful to find a way to turn an annoying weed into a delicious food!
For lunch I had olive paste on black sesame rice crackers.
For dinner I am invited to a neighborhood potluck party, and I will bring hors d’oeuvres: Olive paste (can be substituted with chopped olives, on Belgian endive and/or apples slices, topped with leftover pieces of white asparagus and chives from the garden.
The uses for herbs are unlimited: as condiment, as decoration, for healing purposes, for taste in food and comfort in a hot bath. This year, the International Herb Association made horseradish the herb of 2011 – don’t try it in your bath, though!
Horseradish root, grated has the familiar pungent taste which goes well with bland fish or bland meats – in Germany we use it with boiled beef, which is a boring a dish as one can imagine. With horseradish, it suddenly is exciting for the taste buds. Serve it fresh mashed potatoes, made from scratch.
What makes Armoracia rusticana, as it is known in Latin, so pungent are its volatile oils. They also give it its healing properties: antibacterial, digestive. It certainly gives your sinuses a good blow-out. It is also used in urinary tract infections and bronchitis, and promotes sweating in a fever, which can be beneficial. And in Natural Medicine we view it – together with stinging nettle, dandelion, chives, wild garlic, and others – as one of the essential cleansing spring herbs.
Horseradish also contains potassium, and an interesting enzyme – horseradish peroxidase, now used widely in neurobiology. Magnesium, calcium, phosphorus are building strong bones. That does not mean you should gorge on it – a little goes a long way; too much would be a poison. Overdosing on fresh horseradish (cooking destroys the toxic compounds) shows in gastro-intestinal irritation, nausea, vomiting, diarrhea, weakness, sweating, and disorientation, and possible death.
Before I knew that it would become famous this year, namely in the winter, I planted a horseradish root in a pot. For months, it did nothing, as eagerly as I observed the phallic thing for signs of life. Then, after I had put it outside when there were still frosts expected, I noticed it had developed side-shoots. And as soon as the rain stops today I will plant it in a bigger container. It would be unwise to plant it in the garden as it is a tough customer and prone to spreading robustly. – Perhaps that was one of the reasons our forefathers recognized it as one of those invigorating plants with which we might fight dwindling health. Read More
The Old Boring Calcium Question
October 25, 2010
Chances are you are taking a calcium supplement because are health-conscious?
But do you really need it – or are you even harming yourself with your calcium pill?
It is true that bones need calcium for growth. What is not true is that calcium alone gives us stronger bones. Bones need far more than just calcium: Other minerals like potassium, magnesium, manganese, phosphorus, chromium, sulfur, selenium, boron – and others – are necessary for bone health. Without these other minerals, calcium alone is pretty useless.
Besides, calcium pills – those fat bummers that are hard to swallow because of their size – are also hard to digest. As a physician, I have seen my share of undigested calcium pills popping up on x-rays, somewhere lying in the bowels, useless.
That milk is an unsuitable source of calcium, you have heard here before. Besides being an unhealthy food, the calcium from milk is also not as readily available as the calcium from vegetables, fruit, legumes, whole grains and nuts. The plant world is so abundant in calcium that adding vitamin D to milk as a selling argument comes close to a joke: Dairy is a cause for obesity, heart disease, diabetes, cancer, and so on.
For good bones you need a host of minerals – all conveniently available in plant foods – plus sun and exercise. Not so much sun, actually, as light. Even on an overcast day, a midday outdoors walk will trigger the necessary amount of vitamin D production beneath your skin. Inner-city people with dark skin are mostly at risk of osteoporosis because they need more sun exposure.
And if you don’t move, you will lose your bone strength fast. A little known fact: We are losing some bone every night, from being inactive during sleep. An active person will rebuild that loss (and more) the next day. An inactive person won’t.
A study in the British Medical Journal recently found that calcium supplement could increase the risk of a heart attack by thirty percent. Clearly, we have to rethink health: Health does not come from pills. It comes from a lifestyle that uses our body for which it is intended: joyful activity, fresh foods, sufficient sleep. And hugging and kissing, if you ask me. Read More