Hardy shrubs is a plant that can withstand cold weather and is usually found in colder climates. Hardy shrubs are often used for landscaping because they can provide year-round interest. Some common hardy shrubs include: boxwood, barberry, hydrangea, and rosemary.
Related plant:
Hardy Gardenia
Related plant:
Hardy Evergreen Shrubs
About soil condition, hardy shrubs can grow in many types of soil as long as it is well-drained. They are not particular about pH, but they cannot tolerate soggy conditions. Hardy shrubs are also tolerant of drought and salt.
Like the other plants, hardy shrubs need sunlight to grow and stay healthy. The amount of sun each shrub needs varies, so be sure to check the plant tag or ask your nursery professional before you buy. Some shrubs thrive in full sun, which means they need six or more hours of direct sunlight each day. Others do just fine with four to six hours of sun, while a few tolerate shade.
The temperature condition of hardy shrubs can vary depending on the type of plant. Some shrubs can tolerate cold temperatures, while others may require warm temperatures. Hardy shrubs typically need to be protected from freezing temperatures in order to survive.
Ideal humidity condition for this plant is around 50%. During dry weather, increase humidity by grouping plants together or by setting the pot on a tray of wet pebbles. Keep an eye on the leaves for browning or curling, which are signs of too little or too much humidity.
About fertilizer, this type of plant doesn't need a lot. In fact, too much fertilizer willburn the roots of the plant. Fertilize these plants sparingly, if at all, and only do so when theplant is actively growing. As for the roots, they're pretty tough and can handle a little bitof neglect. Just make sure the plant has good drainage.
Pruning is a crucial part of maintaining a healthy hardy shrub. By pruning, you can encourage new growth, remove diseased or damaged branches, and improve the overall appearance of the plant. When pruning, be sure to use sharp, clean pruning shears. Make sure to make clean, angled cuts just above a node (the point where leaves attach to the stem).
Propagation is the process of creating new plants from existing ones. Hardy shrubs can be propagated by several methods, including seed, cuttings, and grafting. The most common method of propagation for hardy shrubs is by taking cuttings from the parent plant. This can be done in late summer or early fall when the plant is actively growing. Cuttings should be taken from healthy, non-flowering stems and should be about 4-6 inches long. The cuttings should be placed in a mix of sand and peat moss and kept moist until they root, which usually takes 4-6 weeks. Once the cuttings have rooted, they can be transplanted into individual pots or into the garden.
Usually, the plant growth rate is quite fast, enabling them to reach their full height and width potential in just a few years. Once they are established, they will continue to grow and spread for many years. Some of the more popular hardy shrubs include Leyland cypress, photinia, and holly.
Common problems for this kind of plant are: over watering, not enough water, not enough light, too much light, and not enough drainage. Most shrubs like to be in an area that gets full sun to partial shade.
Source:
Underused and Hardy Shrubs - Kansas State University
Shrubs | NC State Extension - North Carolina State University
Hardy Ferns | Home & Garden Information Center - Clemson