Ornamental grasses are a popular addition to gardens and landscapes, adding texture, movement, and interest to any space.
But if you’re new to growing these plants, you may be wondering: does ornamental grass grow back?
The answer is yes – most ornamental grasses are perennials, meaning they will come back year after year.
However, there are a few things you need to know about caring for these plants to ensure they thrive and continue to add beauty to your outdoor space.
In this article, we’ll explore the world of ornamental grasses and share tips for keeping them healthy and vibrant season after season.
Does Ornamental Grass Grow Back
As mentioned, most ornamental grasses are perennials and will grow back year after year. However, there are a few exceptions. Some ornamental grasses are grown as annuals in colder northern climates, meaning they will only last for one growing season.
If you’re unsure whether your ornamental grass is a perennial or annual, do some research or consult with a gardening expert to determine the best course of action for caring for your plant.
Understanding Ornamental Grasses
Ornamental grasses are a popular choice for gardeners looking to add texture, movement, and interest to their landscapes. They can be either true grasses or plants that have a grass-like appearance, such as sedges, and are used for similar purposes in gardens. Most ornamental grasses are perennials, meaning they live for two or more years and will grow back year after year. However, some ornamental grasses are grown as annuals in colder northern climates, meaning they will only last for one growing season.
Ornamental grasses have different growth habits that can be either clumping or spreading. Clumping or bunch grasses grow in a clump that gradually increases in diameter. On the other hand, spreading grasses expand rapidly by aboveground or underground stems. Care must be taken when planting spreading grasses as they may overtake desirable plantings.
Most ornamental grasses planted in the South are classified as cool or warm-season plants. Cool-season grasses begin new growth in fall or winter and bloom in spring or early summer. They will go dormant or decline in appearance during the summer heat. Most ornamental grasses for the South are warm-season growers. They grow rapidly during spring and summer, bloom in late summer or fall, and are dormant through the winter.
When it comes to maintenance, established ornamental grasses have few needs. Cutting them back once a year and dividing them once every four or five years is usually sufficient. It is best to cut back ornamental grasses in late winter or early spring before new shoots grow up through the old. In areas where wildfires are a seasonal concern, cut back grasses in fall to lessen the threat of fire.
How To Choose The Right Ornamental Grass For Your Garden
Choosing the right ornamental grass for your garden can be a tough decision, but it’s important to consider a few key factors before making your selection. First, check the hardiness zone for the grass you’re interested in to ensure it will grow well in your area. You’ll also want to consider whether the grass grows in a tidy clump or tends to spread, as well as its height and color.
When selecting an ornamental grass, think about the purpose you want it to serve in your designated area. Do you want it to add texture and movement to your garden? Or do you need it to provide privacy or function as a low-maintenance lawn alternative?
Consider the amount of sunlight the grass will receive in its designated location. Most ornamental grasses grow best in direct sun and tend to become floppy in lower light. Full sun (6 to 8 hours) is ideal, but some grasses thrive in low light, such as Japanese forest grass or inland sea oats.
It’s also important to consider the type of soil in your garden. Many grasses prefer well-drained soil, but some thrive in moist soil or heavy clay. Some demand fertile soil; others grow gangbusters in poor, rocky soil. Do your homework, and choose the right grass for your conditions — or amend your soil to suit the grass you want.
When it comes to planting, aim to plant in early fall or spring before the summer’s heat (and often dry weather) arrives. This should give them enough time to root in before having to endure more stressful conditions. Avoid planting within four weeks of the first fall frost.
Finally, consider maintenance requirements such as fertilization, pruning, and division. Feed established grasses in spring and late summer with a slow-release fertilizer, and prune them back before new growth appears at the start of the growing season. Divide when the clump dies in the center or every three years for larger clumps.
By considering these factors, you can choose the right ornamental grass to enhance your garden and provide texture, movement, and color all season long with minimal care.
Planting And Caring For Ornamental Grasses
Planting and caring for ornamental grasses can be a rewarding experience for any gardener. Here are some tips to ensure your ornamental grasses thrive:
1. Choose the right type of ornamental grass for your climate and soil type. Some grasses prefer full sun, while others prefer partial shade. Make sure to research the specific needs of the grass you choose before planting.
2. Prepare the planting site by removing any weeds or debris. Dig a hole that is slightly larger than the root ball of your plant.
3. Place the plant in the hole and backfill with soil, making sure to tamp down firmly around the base of the plant.
4. Water the plant thoroughly after planting and keep the soil moist but not waterlogged for the first few weeks.
5. Once established, ornamental grasses require very little maintenance. Cut back the old growth in late winter or early spring before new growth appears. Divide the plant every four to five years to prevent overcrowding and promote healthy growth.
6. Leave the dried stalks on your ornamental grasses during winter for visual interest and horticultural benefits. Cut them back to about 6-12 inches in height in late winter or early spring before new growth appears.
7. If your ornamental grass is getting too big for its location and starting to die near the center, it’s time to divide the plant. Do this in late winter or early spring before new growth appears by carefully digging out one part of the plant and moving it to a new location while keeping the other part in its original location.
By following these simple steps, you can enjoy beautiful ornamental grasses in your garden year after year.
Tips For Winterizing Ornamental Grasses
Winterizing your ornamental grasses is important to ensure their health and longevity. Here are some tips to help you prepare your ornamental grasses for the winter:
1. Choose hardy varieties: If you live in a colder climate, choose ornamental grasses that are hardy enough to survive the winter. Read the labels and choose varieties that are suitable for your growing zone.
2. Cut back at the right time: Depending on the type of grass, you can cut it back in fall or early spring. If you prefer to leave the dried grasses for winter interest, make sure to cut them back before new growth begins in late spring.
3. Divide and replant: Ornamental grasses tend to die out in the center, so it’s important to divide them every few years to keep them healthy. Divide them in the spring when temperatures are cooler and before they start putting out new growth.
4. Provide shelter: If you have perennial ornamental grasses in containers, bring them inside to a garage or other sheltered area in winter. This will protect them from the cold and ensure their survival.
5. Fertilize lightly: After pruning or dividing your ornamental grasses, lightly fertilize around the base with an all-purpose organic fertilizer to encourage healthy growth.
By following these tips, you can ensure that your ornamental grasses survive the winter and come back strong and healthy in the spring.
Common Problems And How To Solve Them
While ornamental grasses are generally low-maintenance plants, they can still encounter some common problems that may affect their growth and appearance. Here are some of the most common issues and how to solve them:
1. Flopping Grass: One of the most common problems with ornamental grasses is that they tend to flop over. This is often caused by too much nitrogen in the soil, which can make the plant top-heavy. To prevent this, avoid over-fertilizing your grass and only apply a small amount of fertilizer if necessary. Additionally, consider dividing your plants every three or four years to keep them from growing too large and heavy.
2. Yellow Leaves: Overwatering your ornamental grass can cause the leaves to turn yellow and eventually die. Make sure to allow the soil to dry out between waterings and avoid watering during rainy periods. If you’re growing your grass in a pot, make sure it’s not root-bound and has enough soil to absorb water.
3. Pests: While ornamental grasses are generally resistant to pests, there are a few insects that may attack them, such as aphids and mites. You can get rid of these pests by spraying your plants with soapy water or using insecticides that won’t harm beneficial bugs.
4. Diseases: Two common diseases that affect ornamental grasses are powdery mildew and rust. Powdery mildew looks like a coating of dust on your plants and can cause them to start thinning. Rust on ornamental grass has a reddish color and can cause the grass to wilt and turn brown. To prevent these diseases, keep your plants as healthy as possible by avoiding over-fertilization and overwatering.
By following these simple tips, you can keep your ornamental grass healthy and looking beautiful year after year. Remember to research the specific needs of your plant and consult with a gardening expert if you’re unsure how to care for it properly.
Using Ornamental Grasses In Landscape Design
Ornamental grasses are a great addition to any landscape design. They add unique texture and movement to the garden, and can be used in a variety of ways to create different effects.
One way to use ornamental grasses in landscape design is to mix them with other plants. Grass-like plants or those with architecture similar to grass can look great mixed in or used as backdrops to ornamental grasses. It’s important to maintain good spacing between plants to flatter their natural architecture. For example, New Zealand Flax (Phormium) comes in a range of colors and sizes and looks best with grasses in blue, green, and gold variegated varieties. Flax Lily (Dianella) is popular in commercial California landscaping for its tidiness and doesn’t require annual trimming like many ornamental grasses. Blue-eyed grass (Schizachyrium bellum) looks great in the foreground of a garden in early spring and is low-water. Agave is another plant that looks great mixed into swathes with small or medium-sized grasses.
Another way to use ornamental grasses in landscape design is to plant several different varieties together for maximum effect. Soft, mounding grasses like fountaingrass can balance bolder textured plants, while more upright grasses like switchgrass provide a perfect textural contrast.
Once established, ornamental grasses require very little care. They do not need supplemental watering or fertilizer, especially deep-rooted grasses that efficiently draw nutrients up to the surface. Cutting back ornamental grasses should be done before the new season’s growth starts, typically in late winter or early spring. Dividing should also be done every 3-4 years to prevent thinning or dying out in the center of the plant.
In conclusion, incorporating ornamental grasses into your landscape design can provide unique texture and movement to your garden. With minimal care and maintenance required, ornamental grasses are a great addition to any garden.
