Scientists have long debated the effects of caffeine on blood pressure. But an analysis of 34 studies seems to have delivered a verdict. On average, consuming 200 to 300 mg caffeine (the amount found in one or two cups of coffee) raises systolic blood pressure by 8 mmHg and diastolic blood pressure by 6 mmHg. And the effects can last for up to three hours. (For reference, 8 ounces of drip coffee contain 100-125 mg of caffeine; the same amount of tea, 50 mg; an equal quantity of cola, about 40 mg.)

I totally agree with you that we should not rely on medication for high blood pressure. End of the day, high blood pressure is a symptom that our body requires immediate attention. The kidneys work extremely hard to send out the “signal” to us and what we did is to pop a high blood pressure pill to suppress the signal. With this medication, our body has to work even harder to send us another signal. No wonder over the long run people who are suffering from high blood pressure needs an additional pill for deteriorating kidneys. Our body is fully capable of healing itself without us realizing it. I strongly encourage high blood pressure sufferers to listen to this and say goodbye to high blood pressure once and for all:
Flax seed is rich in omega-3 fatty acids, and has been shown in some studies to lower blood pressure. A recent review suggested taking 30–50 grams of whole or ground seeds per day for more than 12 weeks to get the best benefits. Flax seed may protect against atherosclerotic cardiovascular disease by reducing serum cholesterol, improving glucose tolerance, and acting as an antioxidant.

Flavanols an anti-inflammatory and heart-protective antioxidant found in raw cacao may protect against cardiovascular disease, reduce the risk of stroke, and help improve blood circulation. Thus lowering your blood pressure. Cacao contains over 700 compounds and the complex antioxidants found in it known as polyphenols help reduce ‘bad cholesterol’ and prevent hardening of the arteries.
Note: The fasting and high blood pressure study described in this article was funded in part by a grant from the National Health Association. It was conducted at the Center for Conservative Therapy in Penngrove, California. The results appeared in the article, “Medically Supervised Water-Only Fasting in the Treatment of Hypertension,” published in June 2001 in the Journal of Manipulative and Physiological Therapeutics.
Basil is a delicious herb that goes well in a variety of foods. It also might help lower your blood pressure. In rodents, basil extract has been shown to lower blood pressure, although only briefly. The chemical eugenol, which is found in basil, may block certain substances that tighten blood vessels. This may lead to a drop in blood pressure. More studies are needed.
But weightlifting can also have long-term benefits to blood pressure that outweigh the risk of a temporary spike for most people. And it can improve other aspects of cardiovascular health that can help to reduce overall cardiovascular risk. The Department of Health and Human Services recommends incorporating strength training exercises of all the major muscle groups into a fitness routine at least two times a week.
They say high BP (hypertension) is a "silent disease", but it does whisper softly. I felt it. It was an uncomfortable feeling, a strong sense of "something isn't right". For some it may be a slight headachy feeling, or a tightness in the head, or dizziness. If you stop and think, you can feel it if ever your BP shoots way too high. If ever it does, you'll then be searching for answers as to how to lower blood pressure quickly, like I was.
5. Drink alcohol moderately, if at all. Although moderate alcohol consumption does not reduce the risk of high blood pressure, it is associated with a reduced risk of cardiovascular disease. The National Institute on Alcohol Abuse and Alcoholism defines “moderate” consumption as an average of no more than two drinks per day for men and one drink per day for women. Drinking more than a moderate amount increases the risk of high blood pressure.
If you have been diagnosed with high blood pressure, your long-term health depends on keeping the condition under control.  The changes above can all help reduce blood pressure levels to a healthy range and potentially allow you to avoid the need for medication.  Still, this is a determination that can only be made by your physician.  Speak with your doctor about your potential treatment options and which may be best for your particular situation.

3. Quit soda. One 12-ounce can of soda contains about 40 grams of fructose, one of the leading high blood pressure risk factors in North America. Consuming 74 or more grams of fructose per day increases your risk of high blood pressure by 77 percent. For people accustomed to drinking a can or two of soda daily, cutting the pop can have a dramatic effect on blood pressure, even eliminating the problem altogether.
As much as I want, these alternative therapies do not replace traditional approaches for blood pressure control (low salt diet, medications). The best way to look at them is as strategies to complement what your doctor has already been prescribing you for your high blood pressure. This could really help if you have mild hypertension, where alternative therapies could potentially help you get off your blood pressure medications, but I highly doubt anyone with severe hypertension is getting off their Norvasc just because they started doing transcendental meditation. 
Studying men with hypertension who came to Pritikin, scientists at UCLA found that within three weeks, the men had significantly healthier levels of blood pressure. In fact, those who arrived at Pritikin taking hypertension drugs left Pritikin two to three weeks later no longer needing their medications, or with their dosages significantly reduced.1