Showing posts with label red clover. Show all posts
Showing posts with label red clover. Show all posts

Thursday, June 27, 2013

Harvesting Herbs: Dancing With Weather

OK, I'm back! I haven't posted anything since I returned from my back-to-back trips to Mexico and Lake Superior - and, yes, my leg is doing great! I'll provide more on that in a future post.

Unlike last year, during which the warm weather came very early in the spring and the spring and first half of summer were extremely hot and dry, so far this year it has been unusually cool and wet in the region where I live. This can have a significant influence on many plant species. Each plant has an ideal habitat that it prefers, including type of soil, moisture level, amount of sun, and climatic conditions. However, there will be a range of conditions in which it can do well and a wider range of conditions that it can tolerate. What these conditions are and how much variation it can tolerate will vary from plant to plant.

The plant life in my area can be pretty lush when there is lots of moisture like there is this year.

There is always a certain amount of climatic variation in any given region. The amount of variation in the Great Lakes region where I live is probably moderate compared to other regions. However, since around 1970 our climate has been noticeably changing - and the amount of change has been increasing with each successive decade. The kind of change is consistent with what we can expect given global trends: a progressive warming with greater extremes. This has had a noticeable impact on plant and animal species.

So, let's get back to the conditions this year. It is fortunate that, although it has been cooler and wetter, we have at least had one or two sunny days most weeks and even on some of the days that it has rained there have been sunny breaks at some point during the day. As a result, some plants that do very poorly if there has been very little sun are managing to stay relatively healthy.

Many plants that don't do well if there is too much rain and too little sunshine are still doing fairly well this year.

On the other hand, there are a few plants that are looking a bit stressed. This is particularly the case for plants, such as a few of the bedstraw (Galium) species, that grow in lower light areas that are relatively moist. Examples include cleavers (G. aparine) and rough bedstraw (G. asprellum). When there is as much rain as we have been getting this year, the typically moist areas where some of these species grow tend to be moist to the point where they are somewhat wet - and not all plants that grow in these areas necessarily like wet conditions.

Rough bedstraw (Galium asprellum) is finding many of the areas where it lives too wet this year.

As an herbalist that wild-harvests almost all of the medicines that I work with, years when it is very cloudy, rainy and cool can be challenging in a couple of ways. Firstly, most herbs need to be harvested on a sunny day and there needs to be at least one additional sunny day between the day they are harvested and the last rain. For some plants there needs to be two sunny days in between. This is because the plant tissues tend to otherwise be too wet and there are many important constituents, such the components of essential oils, that are produced in much lower quantities if there isn't much sunshine. If there are too few consistent periods of sufficient sunshine, there are also a lot fewer days when herbs can be harvested. If the timing of the sunnier periods doesn't line up with when the herbs are ready to be harvested, I may not get some herbs that year. Secondly, there are some plants, such as red clover (Trifolium pratense) and common St. Johnswort (Hypericum perforatum) that are significantly less potent during such conditions to the point where it isn't even worth harvesting them. In unusually wet (and dry!) years many plants will also be affected by mildew, making them unusable.

Red clover (Trifolium pratense) isn't happy when it's too cloudy and wet!

When the conditions are cooler, cloudier and/or wetter than usual, it is best to harvest herbs in the sunnier parts of their range where they will get maximum direct sun and the soil will be a little bit drier. In years when it is hotter, sunnier and/or drier than usual, it is best to harvest herbs in the shadier parts of their range where they are more protected from excessive sunshine and the soil will be more moist. This year, herbs such as stinging nettle (Urtica dioica), which can tolerate full sun but doesn't usually do well in it, is doing very well in more open areas.

Our native stinging nettle (Urtica dioica ssp. gracilis) is doing very well this year in more open areas.

I typically spend about one day per week harvesting the medicines from mid April to mid May; two days per week from mid May to mid June; three days per week from mid June to the end of July; two days per week in August; one day per week in September; I only harvest on two to three days in October; and then it's back up to two days per week in November. This means that during harvesting season I have to minimize the amount of days that I have a fixed schedule, such as clinic days and scheduled classes and workshops. Which days I need to harvest on depends on when the herbs reach the right stage in their life cycle for harvesting and, of course, the weather! During the peak harvesting season I do my best to allow four to five days per week when I have nothing in particular scheduled so that I can head out on a moments notice whenever the herbs and the weather align! Fortunately, a lot of the work that I do can be scheduled around my harvesting days.

This intensive harvesting schedule means that if I harvest almost all of the herbs I use and don't cut any corners to ensure that the medicines are harvested in a respectful and ecologically sustainable way, and are the highest quality possible, I can only harvest and prepare enough medicines to comfortably run clinics two days per week scheduling about five to seven clients per day. I could maybe do three days per week if I really push it, but I would rather not. These constraints are fine with me. Healing work is very intensive. If one gives oneself fully to the medicine it is very difficult to be completely present when seeing more than 15-20 clients per week. It is essential that any healer live a balanced life and look after their own health and well-being in order to be able to fully live the medicine and offer the most to those who need it.

In my practice I only run clinics one day per week. The rest of the time I do other related work such as teaching, writing, and dealing with the various responsibilities I have as a result of being on the board of directors of both our provincial and national herbalist associations. For almost two years a lot of my time has also been devoted to converting the content of courses to an online format. This will continue for a couple of years, but out of necessity it slows down during harvesting season. By nature I do best with diversity and flexibility. My work also requires that I spend regular time deepening my relationship with Nature and the medicines, whether I'm out there observing or just being.

In years where the weather conditions verge towards the extremes it can make harvesting difficult. For instance, of the sixteen herbs that I had intended to harvest this spring, I only managed to harvest ten of them. Fortunately, I didn't need as many herbs as usual. This is partly because I will often harvest enough to prepare a two year supply of tincture for herbs that I use in low to moderate quantities so that I don't have to harvest every herb that I use every year. For herbs that I use in larger quantities this isn't possible. Also, last year I used less of some of the spring herbs than usual.

 American black elder (Sambucus nigra ssp. canadensis) is right on schedule this year!

Another challenge associated with more extreme weather conditions is that it can significantly alter the life cycle of a plant. Although the timing of some species such as black elder (Sambucus nigra) and yarrow (Achillea millefolium) is pretty consistent from year to year, others can vary by as much as one to four weeks depending on the weather.

This year lance-leaved heal-all (Prunella vulgaris ssp. lanceolata) came into flower sixteen days later than last year.

Ultimately, all I can do is surrender! Herbalists have always had to learn to work with whatever Nature provides. Fortunately, I work with enough medicines that if I can't harvest a sufficient quantity (or any!) of a particular herb in any given year I usually have one or more herbs that are similar enough that I can use as a substitute. In the mean time, looking ahead at the coming weeks there is still lots of rain in the forecast. In terms of the rest of the harvesting season, I'll just have to wait and see how the summer is going to unfold. All I know for sure is it will be an adventure!


Wednesday, January 2, 2013

Providing a Healthy Start for the Next Generation

Here's a discussion from Scientific American that references a couple of studies on chemicals that have been detected in umbilical cord blood:

http://www.scientificamerican.com/article.cfm?id=chemicals-umbilical-cord-blood

This has very important implications for the health of our children. First, let's put it into context. The blood of a mother and her child is separated by the placental membrane. One of the functions of this membrane is to prevent waste products and toxins in a mother's blood from entering the blood of her developing child. It is intended to protect the child, but is not 100% effective. Today there are thousands of toxic chemicals in our water, food and environment. Many of them will end up in our body fluids and tissues. Although our body has very efficient mechanisms for breaking down and eliminating these toxins, the level of toxicity that we are exposed to significantly exceeds our capacity to eliminate them much of the time. This is further exacerbated by the fact that the majority are synthetic or semi-synthetic chemicals that, until recently, the human body has never been exposed to. Just as our general mechanisms of detoxification are not capable of fully protecting us from this toxic chemical onslaught, similarly the placental membrane is not able to fully protect a developing child.

When 232 or 287 (depending on the study) chemicals are detected in umbilical cord blood, we need to keep in mind two things: firstly, this only represents a percentage of the chemicals in a mother's tissues as some would have been filtered out by the placental membrane; and secondly, that there are many more chemicals that could potentially be found in umbilical blood that these studies didn't test for. There is no study that has ever attempted to detect every possible known environmental toxin in umbilical cord blood, or in the human body for that matter. So, in reality, there could be two or five or ten times the number of chemicals that were found in these studies.

Medical professionals often claim that we shouldn't be concerned about this because these chemicals are usually at "acceptable levels". This is ridiculous because our understanding of the affects of these chemicals is insufficient to be able to determine what actually constitutes an acceptable level, especially concerning the affects of long-term exposure. We know even less about the potential affects on a developing child, and virtually nothing about how all of these chemicals interact in our body because the toxicological studies from which the "acceptable levels" are determined almost always focus on a single chemical. Fortunately, some medical researchers are beginning to sound the alarm. Unfortunately, the majority of doctors are still not aware of or unwilling to discuss this with their patients [for example, see: http://www.scientificamerican.com/article.cfm?id=should-doctors-warn-pregnant-women-about-environmental-risks].

Red clover (Trifolium pratense) is an excellent herb for detoxification. It is also a specific
for helping to protect women from toxins that are hormone disruptors.

One of the things that I've noticed in the last thirty years, in my practice, in the research literature, and in life in general, is that chronic illnesses are significantly on the rise. More importantly from the perspective of this discussion, they are affecting people at younger ages with each successive generation. One of the primary reasons for this is that each generation develops in the presence of whatever toxic chemicals are able to pass through the placental membrane and then after birth they continue to accumulate additional toxicity from the air they breathe, the water they drink, the food they eat, from things they put on their body and use in their home, and from other sources in their environment. By the time they start having children, their body fluids and tissues are likely to be considerably more toxic than those of their parents when they were born. The accumulative affect of this is the gradual erosion of the level of health and vitality of the entire human population from one generation to the next.

Until recently it was assumed that unless a substance has the capacity to produce a genetic mutation and is present at a critical stage of embryonic development when the mutation is more likely to occur, the relative risk of the substance is fairly low. However, in recent years there has been a growing body of research on epigenetic factors. This concerns the capacity of a substance to affect gene expression, even if it doesn't affect the genes themselves. Only a small percentage of the content of our chromosomes is actually DNA. Much of it is made up of substances that turn our genes on and off. Recent research has demonstrated that environmental toxins have the potential to affect gene expression. What is even more disturbing is that the affect can potentially last for many generations [for example, see: http://www.sciencedaily.com/releases/2012/03/120302101821.htm]. This means that even if we could somehow eliminate all toxicity in a particular generation by the time they begin to have children, some of the epigenetic affects of exposure to toxicity in previous generations will continue to be passed down to the next generation. Each generation is being affected by the accumulation of toxicity in the their parents, grandparents, great grandparents, etc., along with the affects of the toxicity that they are exposed to on a day-to-day basis. The affects of this toxicity doesn't just involve altered gene expression and potential damage to DNA. Toxins affect our cells and tissues in many ways including: interacting with the receptor sites of hormones, neurotransmitters and other chemical messengers; promoting oxidation of enzymes and cellular structures; chemically altering or binding to substances in our body cells and fluids and thereby changing their chemical properties; and altering the functioning of, irritating, damaging or killing our cells by other known and unknown mechanisms.

Sadly, few prospective parents are aware of this. On the positive side, there is a fair bit that can be done about it, although many parents are not willing to take the time or make the effort. One of the major challenges that I see in my practice is that women often come to me after deciding to get pregnant looking for support during their pregnancy, but they haven't considered the need for adequate preparation before getting pregnant. They tend to come to me around the time they want to start trying to get pregnant. As a result, some of them are somewhat discouraged when I recommend as a bare minimum six months, but preferably one year to prepare.

Ideally, beginning one year before they start trying to get pregnant, both parents should be eating a good diet consisting of lots of vegetables and fruits, and whole, natural, minimally processed foods that are certified organic as much as possible. They should also get lots of exercise, reduce stress and minimize exposure to toxicity in their diet, lifestyle, home and work environments. I also recommend eliminating the use or consumption of cigarettes, cigars and social drugs, and also minimizing or eliminating consumption of caffeine and alcohol. If they do continue to consume some caffeine and/or alcohol, these should be eliminated at least a couple of months before they start trying to get pregnant. The women should also not be consuming these while trying to get pregnant, and for the duration of time that they are pregnant and nursing. The men should continue to not consume these while their partner is trying to get pregnant. Once she is pregnant, it doesn't matter as much for him, but I still recommend sticking to this as much as possible to help support his partner.

During the year of preparation, the male partner should go on a herbal detox formulation for about nine months. Then, about three months before his partner starts trying to get pregnant, he should switch to an adaptogenic formulation and continue taking this until she gets pregnant. For more information on detoxification, here are links to two articles that I wrote for Vitality Magazine that discuss detoxing from slightly different perspectives:

http://vitalitymagazine.com/article/prescription-for-a-healthy-liver/

http://vitalitymagazine.com/article/herbal-allies-for-spring-liver-cleansing/

Although the focus of both of these articles is on the liver, they provide a lot of useful information that is relevant to any kind of detox. For anyone who is interested in learning about detoxification in greater detail, I will be including a lecture on detoxification in our series of online lectures at some point in the next couple of months. You can find more information on this and other lectures here:

http://www.livingearthschool.ca/h-generalcourses.htm#OLS

For more information on adaptogenic formulations, here is a link to another article:

http://vitalitymagazine.com/article/adaptogen-herbs/

Artist's conk (Ganoderma applanatum) is an excellent adaptogenic fungus
that helps support the reproductive system in men.

Women who are preparing to get pregnant should do a detox for the first six months, then alternate a detox formulation with a female reproductive tonic. The information on detoxification in the articles that I linked to above is also relevant for women. In addition, here is another article that discusses this from the perspective of the female reproductive system and addresses female reproductive tonics as well:

http://vitalitymagazine.com/article/restoring-hormonal-harmony-with-fertility-friendly-herbs-and-lifestyle/

Motherwort (Leonurus cardiaca) is one of my favorite female reproductive tonics.

Although this article is on fertility issues, the information is relevant to anyone who is trying to get pregnant whether they are having fertility difficulties or not. The issue of fertility and preparation for pregnancy will also be discussed in more detail in an upcoming online lecture. Anyone who is interested can check out the link above.

There are a lot of important things that need to be considered when it comes to having children. Among the more important considerations are what we need to do to give our children a healthy start. Many prospective parents in our society begin planning well in advance to make sure that they are financially capable of supporting a child. For the benefit of our children, it is important that we put at least as much time and energy to help bring them into the world with a strong, healthy body.