Nighttime temperature no lower than 55°F (13°C). The first thing you need to understand about Boston Ferns (or any outside plant care) is the Hardiness Zone they are being grown in. Night-time temperatures should be on the cool side: below 60 degrees Fahrenheit. You don’t have to provide your ferns with a light source (even a dark spot is okay), and you don’t have to give them any special care. Boston fern can be divided. Frost may kill the fern to the ground, but it will rebound in spring. As temperatures begin to drop in mid to late fall, plants need to be covered or brought indoors on nights when a heavy frost or freeze is expected. After spraying, I leave the plants outside for two or three days, then give them one more check before I take them inside. Because Boston ferns are tropical plants, they cannot tolerate frosty temperatures. New Hampshire Cooperative Extension: Do Ferns Make Good Houseplants? Check to make sure your plant doesn't get infested with spider mites or mealybugs. Boston ferns grow year-round in U.S. Department of Agriculture plant hardiness zones 10 through 12. Many of them are natives, well adjusted to the growing conditions of various Southern regions. Wild Boston ferns grow on the forest floor under dense tropical canopies. Get it as soon as Thu, Dec 3. Q. Keep the soil damp, and water the fern if the soil feels dry. UV Protected Indoor/Outdoor Fake Boston Fern - 18" QTY: View Bag & Checkout . These include the Boston Fern, a USDA zones 9 through 11 plant that is unable to survive weather colder than 40 degrees Fahrenheit. If it does, the University of Wisconsin Extension suggests cutting off the affected fronds. Some of the most difficult for me are the ferns, Boston ferns in particular. However, they really thrive between 60 and 75 degrees. On the northwest side of a house, a Boston fern may survive temperatures from -3.33 degrees C to -2.22 degrees C. Remember that while an outdoor thermometer may indicate this temperature range, wind chill still may make your fern too cold to survive. Even if the temperature is above freezing, which may not normally damage a Boston fern, the University of Georgia notes that a rapid drop in nighttime temperatures may damage the foliage. These realistic outdoor plants and flowers make a lovely accent for your porch decor. These plants like a temperature at night to be about 65 degrees, and daytime temperatures that don't exceed 95 degrees. Outdoors they should be placed in a sheltered spot where the temperature does not get this hot. Although Boston fern is often grown as a houseplant, it thrives outdoors in warm, humid climates in USDA zones 9-11. If you're lucky enough to live in a mild climate, you can grow them outdoors year-round. Northwest Exposure. Artificial Plants Vines Ferns Persian Rattan Fake Hanging Plant Faux Hanging Boston Fern Flowers Vine Outdoor UV Resistant Plastic Plants for Wall Indoor Hanging Baskets Wedding Garland Decor-2 pcs. Temperature Range for Boston Ferns. In cloudy weather with little rainfall, watering is usually not necessary. Becker, began propagating them in 1894. The first step in caring for Boston ferns in the winter is to find the right place to winterize your Boston ferns. Brown leaves on Boston Ferns can develop if they are exposed to temperatures much outside this range or if they are subject to hot or cold drafts. Boston ferns can survive outside temperatures of 46 degrees F, but a sudden drop in temperatures may damage the foliage by causing misshapen fronds and crinkled leaflets. If you live in a region of the United States where the mercury falls under 55ºF in the winter, then you’ll need to grow your plants in pots and move them indoors when it starts to get cold outside. Although Boston fern (Nephrolepis exaltata 'Bostoniensis'), also called sword fern, is commonly known as a houseplant, it can grow outdoors year-round in U.S. Department of Agriculture plant hardiness zones 10 through 12. Outdoors, the plants can take considerably higher temperatures as long as you grow them in shade and give them enough water. Twisted fronds and misshapen leaflets are results of extreme fluctuations in temperature. Indoor air can be too dry for Boston ferns to thrive. Temperature: The ideal room temperatures for Boston ferns is between 60-75ºF (16-24ºC). Avoid warm air from indoor heating and cold drafts. The Boston fern weather tolerance is for temperatures to be just right — not too hot and not too cold. Placing a humidifier in the room with the Boston fern is a good solution. Tips for Controlling Humidity When Growing Indoors. Elsewhere, move them indoors for the winter or treat them as annuals. When grown indoors, Boston ferns don’t usually have much trouble with pests. The lowest minimum temperatures for USDA zone 10 are 30 to 35 degrees Fahrenheit. Unfortunately, popular selections such as Boston ferns are simply not tolerant enough to keep outdoors in cooler climates. If the fern loses lots of its foliage, cut it back to about 2 inches and it will eventually regenerate to form a lush plant. Many ferns, including Boston ferns, are native to sub-tropical and tropical rain forests. Boston Ferns are Tropical Plants. Boston Ferns prefer temperatures of between 60-75℉ (16-24℃) and prefer spots on the cooler end of that range, so look for a cool place in your home. 50-55 degrees is ideal. Ferns are a great way to brighten up patio and outdoor living spaces. Anywhere between 65 to 75 degrees is a good daytime temperature for Boston ferns. Boston ferns like to be grown in cool, but not cold climates. Temperature Boston ferns like to be grown in cool, but not cold climates. How Much Sun Does A Boston Fern … You should also fertilize Boston ferns once a month during the spring and summer and once every 2-3 months during the winter. Q. Water whenever the soil feels dry to the touch. Some experts advise fertilizing with a weak solution once a month, but if you do, you will cause the foliage to brown and dry. Because Boston ferns are tropical plants, they cannot tolerate frosty temperatures. Boston Ferns prefer indoor temperatures between 60-75ºF. Because Boston ferns are often planted in peat moss, once a month or so, soak the pot with water and let it fully drain. At temperatures below 60 ° F (15 ° C), water the fern less often because the plant does not evaporate too much moisture. Boston ferns need as much protection from high heat as from cold. Watering Requirements for Staghorn Ferns in the Winter, The Best Time to Transplant My Airplane Plant, Missouri Botanical Garden: Nephrolepsis Exaltata, USDA Agricultural Research Service: USDA Plant Hardiness Map. Boston ferns need as much protection from high heat as from cold. What Temperatures Can A Boston Fern Handle? Some may need to be watered twice daily in hot weather. Can I Leave My Boston Fern Outside If it Is 46 Degrees? If a porch is not available, be sure the Boston fern receives light but is protected from direct sunlight by light-loving plants. The fern grows best outdoors when placed in a partially sunny to shady location and indoors in a location out of direct sunlight. Keeping certain houseplants in good shape during the fall and winter can be quite a challenge.

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