VOA健康报道2024--Grow Your Own Tea Plants Year-round

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People who grow their own food are familiar with planting tomatoes, peppers, squash, herbs, berries and other common fruits and vegetables.

However, they may not think of growing plants for drinks.

Gardening expert Jessica Damiano recently wrote about plants you can grow to make tea. Damiano, who writes for the Associated Press, says that growing your own tea plants in the garden can provide enough leaves and flower buds to keep your tea pot filled year-round.

And the plant to grow, she says, is camellia sinensis (var. sinensis), also known as the "tea plant."

These evergreen¹ plants are easy to grow in any amount of sunlight, from deep shade to full sun. However, ideal growing conditions are part sun to light shade. They require well-draining soil with a slightly acidic pH.

Young plants will take about two years to produce enough leaves for tea. In five years, one plant should provide enough for an average tea drinker. If you need more tea, Damiano says to plant more camellia sinensis.

Camellia sinensis is called the "tea plant" because white, green, black, and oolong teas all come from this plant. Their differences come from harvesting practices and after-harvest treatments.

For white tea, pick the flower buds before they fully² open. Heat the buds in a pan over low heat, moving them often for about 10 minutes. Cool them and store in an airtight container.

For green, black and oolong tea, pick two or three of the youngest leaves from each stem, along with the leaf bud from each stem tip. Do this every 10 to 12 days as new growth develops.

Preparing green, oolong, or black tea all have different processes.

Green tea

For making green tea, briefly³ steam leaves over boiling water. Then put the leaves on a clean towel and let them sit for five minutes. Roll up the leaves in the towel gently to remove extra water. Remove the leaves from the towel, separate them, and place them on a baking sheet. Heat in an oven or toaster oven set to 148 degrees Celsius⁴ (300 degrees Fahrenheit) for 10 to 15 minutes or until the leaves are completely dry. Brew⁵ immediately or cool and keep them in an airtight container for future use.

Oolong tea

For making oolong tea, put the leaves in one layer on a baking tray. Put the tray in a sunny outdoor spot to let the leaves wilt⁶. After 30 to 60 minutes, move the tray into the shade and move the leaves every hour for 8 to 10 hours. Next, place the leaves in a wide pan and cook them over low heat for 15 minutes, moving gently as needed to prevent burning. Let the leaves cool. And roll each leaf individually to keep its oils and flavors. They should be completely dry before storing in an airtight container.

Black tea

To make black tea, place leaves on a baking sheet in the sun for 10 to 12 hours to remove only 50 to 75 percent of the water. Then, cut the leaves into long pieces and roll into small balls. Place the balls in a warm room between 25 and 26 degrees Celsius (78 to 80 degrees F) that is not too dry of a room until they turn reddish-black. Then, dry them in an oven at 93 degrees Celsius (200 degrees F) for 5 minutes. Lower heat to 60 degrees C (140 degrees F) and continue drying for an additional hour. Cool and store in an airtight container.

Native to China, camellia sinensis var. sinensis is cold-hardy. That means it can survive in cold weather. However, it may need some protection to survive cold winters.

The same is true for another variety of this flower, camelia sinensis var. assamica. Native to India, this kind is more like a tree.

You will have to research which kinds of camellia sinensis can grow in your area.

On its website, the International Camellia Society gives you suggestions for how to protect these plants during a cold weather.

Mulching: Apply a thick layer of mulch around the base to protect the roots.

Covering: Use a cloth to cover the plant during extreme cold.

Watering: Water the plant well before the first freeze.

Location: Plant your camellia in a sheltered spot, such as near a building, to protect it from cold winds.

Pruning⁷: Avoid pruning late in the season. New growth may not survive colder weather.

Words in This Story

garden - v. to grow herbs, fruits, flowers, or vegetables

bud - n. a small growth at the tip or on the side of a plant stem that later develops into a flower, leaf, or new shoot

evergreen - adj. having foliage⁸ that remains⁹ green and functional¹⁰ through more than one growing season

shade - n. space sheltered from the heat and bright light of the sun

acidic - adj. Acidic soil tends to have mineral deficiencies that can affect plant growth. By definition, acidity¹¹ is the characteristic of soil that has a pH level of less than 6.5 (a reading of 5.5 means the soil is very acidic).

steam - v. the invisible vapor¹² into which water is changed when heated to the boiling point

brew - v. to prepare (as tea) by soaking in hot water

wilt - v. to lose or cause to lose freshness and become limp

oven - n. a chamber¹³ used for baking, heating, or drying

prune¹⁴ - v. to cut off or cut back parts of for better shape or more fruitful growth