• Nguồn: [Ebook] The Houseplant Handbook: Basic Growing Techniques and a Directory of 300 Everyday Houseplants – David Squire
• Biên tập: Dũng Cá Xinh (Tháng 02/2022)
• Dịch: Team Codai.net 

English 

Humidity and Misting (Độ Ẩm và phun Sương)

The amount of humidity in the air influences the health and growth of plants. Desert cacti and most other succulents survive in areas with little humidity, but plants native to forests usually need a humid atmosphere.

Signs of Excessive Humidity

1. Leaves and flowers that are tightly packed together sometimes become excessively damp.
2. Flower petals and buds eventually become covered in a furry mold.
3. Soft, hairy leaves become damaged before shiny, all-green ones do.
4. Cacti and other succulents develop patches of decay.
5. Plants with leaves that clasp stems become damaged; water becomes trapped at the junctions of leafstalks and leaves.

Signs of an Excessively Dry Atmosphere

1. Tips of leaves become curled, dry, and shriveled.
2. Flowers fade and become discolored, with flower buds eventually falling off.
3. Tips of shoots wilt and, later, shrivel.
4. Surfaces of leaves become dull.
5. The whole plant wilts if the temperature is high, with leaves eventually falling off.

How to Create Humidity around Plants

1. Stand plants in small groups to create a humid mini-environment.
2. Stand pots in trays with a 1in (25mm) layer of pebbles in the base, shallowly filled with water to just below the top of the pebbles. Moist air can then rise around the leaves.
3. Use a mist sprayer/mister, which is inexpensive, to coat the leaves in fine water droplets, but do not spray flowers or plants with hairy leaves.
4. Mist plants in the morning so moisture can evaporate before night. Dampness remaining on the leaves in late evening encourages the presence of diseases at night when the temperature falls.
5. Mist aerial roots, such as those on Monstera deliciosa and some Philodendrons, to help them to remain soft, pliable, and active.
6. Avoid spraying plants when they are in strong, direct sunlight; water droplets may act as lenses and burn the leaves.
7. Regular misting helps to discourage red spider mite infestation.

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Dũng Cá Xinh

Có những ngày mưa gió, ngày nắng chói chang nhưng khi mở cửa ra hàng hoa dại vẫn nằm đó dưới bậc thềm. Không nhạt không úa mà vẫn còn vẻ tươi trong như ngày nào.

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