Rosemary and sage are classic herbs for colds and sore throats. Both are known for their antimicrobial and antiviral properties.
If you're searching for a failproof plant that can thrive in the north or the south, in sun or in shade, in a garden bed or in a container garden, then the Persian shield is for you. This colorful, leafy plant is more than just durable, it's also a true standout in the garden.
Cabbage, Kale, Broccoli, Cauliflower, Brussel Sprouts, Kohlrabi, Collard Greens, Celery, Spinach, Peas, Asparagus, Rhubarb, Radish, Beets, carrots, Lettuce, Arugula, Onions, Potatoes, Swiss Chard-all can handle light frost, but keep a cover handy for a sudden really cold dip (below 25 degrees F).
According to Myers, the hardiest vegetables that can withstand heavy frost of air temperatures below 28 include spinach, Walla Walla sweet onion, garlic, leeks, rhubarb, rutabaga, broccoli, kohlrabi, kale, cabbage, chicory, Brussels sprouts, corn salad, arugula, fava beans, radish, mustard, Austrian winter pea and ...
As mentioned earlier, watering plants several hours before a freeze is the first defense against damage. During a temporary cold snap, cover entire shrubs with burlap, sheets or blankets for insulation. For the best protection, use a frame to prevent the covering from touching the plants.
In warmer zones, the winter planting window is wide open. You can sow seeds for winter vegetable crops, like salad greens, radishes, carrots, onions, Swiss chard, English peas and kale. Look for transplants of other cool-season vegetables, including Brussels sprouts, broccoli and cauliflower.
Cabbages and Kales. Ornamental kale and cabbage are some of the most popular winter annual plants. They lend a completely different texture to a winter landscape bed. Once the plants are hardened by cooler night temperatures they can survive most cold winters.
One option is to bury the container. An excellent way for home gardeners to over-winter container-grown trees and shrubs is to dig holes in a garden area and set the pots in the ground. Plants overwintered in containers should be heeled into the ground after they go dormant but before the soil freezes.
Answer: Newly emerged tree and shrub foliage is susceptible to damage from below freezing temperatures. The new growth on many trees and shrubs can tolerate temperatures in the low 30s and upper 20s. Freeze damage is most likely when temperatures drop into the middle 20s or below.
Crabgrass, petunias, and snapdragons are types of annual that will not survive cold temperatures and will need to be cared for to survive winter.
Some plants tolerate frost and cold temperatures better than others. Plants always killed by frost include summer annual flowers and summer vegetables like impatiens, marigolds, coleus, tomatoes and peppers. Subtropical and Tropical plants are the most sensitive to frost (citrus, hibiscus and bougainvillea).
English ivy (Hedera helix) Ivy is one of the toughest, hardiest groundcovers available. Adaptable to almost any condition but dry full sun, it has saved many an “unplantable” area. It can become invasive, especially when seeds are dispersed far and wide by birds.
Once the ground is frozen, apply a 3″ to 4″ layer of insulating mulch, such as bark mulch or pine straw, around the base of the plant. This helps insulate the soil so it stays frozen and helps prevent heaving. Keep the mulch several inches away from the trunk to prevent rot and discourage rodent chewing.
Mulch is great for covering the base of the plant. Bed sheets or comforters work best for covering large plants and shrubs. Newspaper can be used on low-growing foliage, but it can often be difficult to get it to stay in place. You can also use old pillowcases, sheets, towels and even cardboard boxes.
Protect Plants from Late Spring Freeze.
Hardy plants such as daylilies, hosta, peonies, lily-of-the-valley will survive a late spring frost, but they will be out of commission until warmer weather returns. These are perfect times to replace them with frost-resistant plants.
A mature, cold hardy plant can withstand actual freezing temperatures (32F/0C) for a period of time and even temperatures below freezing. Cold hardy plants can easily handle light to moderate frosts without being harmed.
Plastic that touches your plants can often be even worse than no protection since it can hold moisture against plant tissues and cause more serious freeze damage.