PERIWINKLE - VINCA HERBACEA
PERIWINKLE - VINCA HERBACEA
Local name: გველის სურო
Where to find it: Guria
Terrain: Woodland areas, slopes, and in gardens.
Description:
Vinca herbacea, commonly known as periwinkle, is a low-growing plant with shiny, dark green leaves that stay green all year round. The leaves are shaped like ovals or long ellipses and grow directly across from each other on the stem. In the spring, it blooms with pretty violet-blue flowers, each having five petals. The plant has a creeping or trailing habit, meaning it spreads along the ground, creating a lush carpet-like effect.
Usable parts: Leaves
Medicinal properties:
Circulatory Benefits: Vincamine is known for its vasodilatory effects, meaning it may help widen blood vessels. This property has led to its use in supporting cerebral circulation, potentially improving blood flow to the brain.
Cognitive Support: Some studies have explored vincamine’s potential cognitive benefits, suggesting that it may play a role in supporting memory and overall cognitive function.
Neuroprotective Potential: Vinpocetine, another alkaloid found in periwinkle leaves, has been studied for its potential neuroprotective effects. It may have antioxidant properties and could help protect nerve cells from damage.
Cognitive Enhancement: Some research suggests that vinpocetine may have cognitive-enhancing effects, possibly by improving cerebral blood flow and protecting against oxidative stress.
Anti-Inflammatory and Antioxidant Compounds: Besides alkaloids, periwinkle leaves contain compounds with potential anti-inflammatory and antioxidant properties.
Undesired Effects:
Toxicity Risk: Periwinkle contains alkaloids that can be toxic, especially in higher doses. Excessive consumption or improper preparation of periwinkle leaves may lead to adverse effects, including nausea, vomiting, diarrhea, and in severe cases, more serious toxic reactions.
Preparation:
Thoroughly clean the leaves by rinsing them under cool, running water and patting them dry. Allow the cleaned leaves to air dry in a shaded area until completely dry. Once dry, cut the leaves into smaller pieces using clean scissors or a sharp knife. For an infusion, place 1-2 teaspoons of the dried, chopped periwinkle leaves in a cup, and pour hot (but not boiling) water over them. Let the leaves steep for about 10-15 minutes, then strain the infusion to remove the plant material. If desired, add a natural sweetener like honey. Consume the infusion while it’s still warm.
Harvest time:
From late spring through early autumn
Harvest method:
Opt for mature leaves, as they are likely to contain higher concentrations of beneficial compounds. Harvest in moderation, avoiding the removal of all leaves from a single plant to maintain the overall health and sustainability of the population. Ideally, choose the morning for harvesting when the plant is well-hydrated.
Conservation:
After cleaning the leaves by gently rinsing and patting them dry, arrange them in a single layer in a shaded area with good air circulation. Turning the leaves periodically during the air-drying process helps achieve uniform drying and prevents mold formation. Once dry, store the leaves in airtight containers, such as glass jars with tight-sealing lids, to protect them from moisture. Choose a cool, dark storage location to maintain their potency. Avoid plastic bags, as they can trap moisture. Periodically inspect stored leaves for any signs of moisture or mold, discarding any affected leaves.
