Heart health herbs include cayenne, cramp bark, garlic, and fennel. These are just a few herbs to help with heart health and circulation. There are other ones as well. Cayenne contains a phytochemical called capsaicin that promotes blood flow. This in turn lowers blood pressure. Cayenne also helps to strengthen the heart. Cramp bark is a flowering plant. It decreases muscle spasms. It may also decrease heart rate and lower blood pressure. Garlic is an anti-inflammatory herb. It helps prevent cell damage, and regulate blood pressure and cholesterol. Fennel is a high fiber and potassium herb. It lowers blood pressure and helps to manage blood and cholesterol.