You can mix colors up if you like for a patchwork look. But in your situation, I would get these plants into the ground as soon as possible. The straw also provides shade and keeps the soil from drying out until the plants are strong enough to stay on their own. Can you suggest some plants that will flourish while helping to control erosion? You can check Craig’s List for homeowner Aloe cuttings & pups. Layers of indigenous compost, mulch and pine needle/leaf litter are … Buffer width depends on the size of the lot, with an … Use plastic — Tommy Cowett Shows the process of designing and installing a landscape for a steep slope. Some great options and cautions are discussed in this article. All, including native plants, need irrigation to become established and also natives will look better and do better if given a spritz with the hose at the end of the hottest summer days—not enough to wet the ground but enough to moisten the leaves and the top of the ground as would occur if a light rain had fallen. Create dams and barriers to slow the flow of any water. Terraces: If the area is large and your slope is at least 30%, creating terraces would be a good plan for making more level planting, recreation, and seating areas. Another option is to plant one of the ornamental grasses like sweet grass (Muhlenbergia filipes) or switchgrass (Panicum virgatum). If you’re wondering what to plant on a steep bank, watch our Quick Tips video guide. I have a steep slope and looking for some native plants for erosion control. I've just planted out a steep bank from where the land was excavated for an arena. Other pioneer plants for hostile environments include Pigface, acacias, and Spinifex grasses that do well in coastal sand dunes can also provide spreading ground cover and erosion control on slopes. Install a drip system or low-level water system. Plant selection depends on individual taste and what would best suit the area. They remove water from the soil and carry it up into their tissues and release it as water vapor into the air (evapotranspiration). But whatever you do, I strongly suggest you build a low retaining wall on that side of the pool to hold back the bank. Pioneer plants like Bleeding Heart (a low bushy plant with tell tale heart-shaped flowers) and Sarsaparilla (a climbing vine plant) can then be considered. I want to upgrade the containers which are currently plastic buckets. There's also poplars. Bank Slope: The slope of the bank is the single most important factor that determines rate of erosion. Your plant suggestions are outstanding. Millions of ‘Katrinus’ plants are used Australia wide. It is invasive and spreads by seeds that are distributed by birds. Would you please let me know if this is a good idea. We’ve planted bare root plants as close as 6“ on center. It spreads as quickly as Japanese honeysuckle. It was built in a vacated gravel pit. Plants suitable for river banks must be able to survive occasional flooding and possible erosion issues. Plant it in fall and just spritz the foliage with a little spray of water in the evening of hot dry days in summer to make the plant feel as if it has been moistened by a light shower or heavy dew. Kids are likely to use it for jumping into the pool, and the tile front will make it look as if it’s a part of the swimming pool. I’ve purchased 4 15-gallon containers of Pandorea Jasminoides – Bowers Vine – that I want to train onto my wooden fence. You could then landscape the bank in an artistic way with rocks, trees, shrubs and perennials and a winding path or steps for reaching them. Gazanias are available for sale at virtually all nurseries except specialty nurseries. Thanks, The only thing that has been done to this area in the past is put down a rope type netting and bark on the rock, sand & gravel, then try to get ivy to grow, by only putting soil in each hole that a ivy plant was planted. Choosing Plants for River Banks. Yep, I planted flax. Cover the slope and panty hose with a thick layer of mulch. Plants for steep slopes Steeply sloped sites have many inherent issues, including soil displacement, erosion and the obvious safety challenges of working on potentially unstable, banked ground. exaltatus); and C.h.g. By looking at this list you can find the nursery or nurseries closest to your home that can supply your chosen plants. Our bottle may be 5 years old. This book is widely available at bookstores and on the Internet. I know that our problem is a challenge, but I know from my past questions, that from my former requests that you can handle this one. Terraces should be slightly sloped perpendicularly to the hillside to allow for run-off. For the best performance, set up a soaker hose on a timer until dwarf forsythia is established. Erosion Control (video) How to Landscape a Steep Hillside on Your Yard (video) How to Plant Ground Cover to Prevent Erosion (video) I am so glad you wrote me since it is not a good idea to cover a slope with Japanese honeysuckle. Creeping junipers ( are the problem-solvers of the plant world. Plants to stabilize a steep bank in South Carolina January 09, 2010 I would like to use native plantings to stabilize a steep bank. One thing you could do quickly is to plant the slope solidly with gazanias for erosion control, and then later think of deeper rooted plants to put in with the gazanias. Create a buffer of native plants between your ornamental garden and the edge of a steep slope. When planting close to a swimming pool, choose plants that are clean and won’t drip leaves, flowers or debris into the water. Large slopes need a lot of groundcovers and the Fire Department likes to see fire-resistant succulents rather than sages. Why should you plant a California native plant community on the slope and not grass or ice plant! Flaxes and other native grasses can be ideal for this purpose; the strong root system holds the bank together, there is no risk of them blowing over due to their size. Plants have been reported to grow well in Zone 5 but with little flowering due to frost damage. to 15 ft. to our perimeter fence. David Hurrion, BBC Gardeners’ World Magazine, gives advice on clearing the area, and recommends some plants that should do well in this tricky spot. Several named varieties of honeysuckle can be purchased from Monrovia wholesale nurseries by your local retail nursery. Whenever possible, choose species native to your region, as they require less irrigation and fertilizer, both of which contribute to harmful run-off. A.  Holy Rubik’s Cube Batman – You’d make the Riddler blush! The only way of stabilizing a slope better than plants is a reinforced retaining wall that you need to take a mortgage out to put up($50,000-100,000 is common). Stabilizing a steep slope minimizes soil erosion and encourages a thriving ecosystem. Low-growing groundcover plants are best to maintain soil stability and minimise erosion. This one may also have seeds spread by birds but it doesn’t seem to cause as many problems as Japanese honeysuckle. How Planting Trees on a Hillside Helps with Soil Erosion Taller than the above lilac varieties is C. ‘Julia Phelps’, which is particularly stunning planted on a steep bank next to flannel bush (Fremontedendron ‘California Glory. Be sure to water well, when using jute mesh. They slow erosion both above and belowground with their roots and their foliage. For any of the above groundcovers, we recommend planting 2 ½ “ pots, or even better a plug, 9” to 12” apart on center. My main concern is finding plants that will help control any future erosion of this bank that leads to the pool, while being visually pleasing as well as “pool friendly”. Here are some ideas: Many varieties of California lilac (Ceonothus) make fine native ground-covers to grow on steep banks in coastal zones. ), Gardening Question From Molly: Hello! The decayed bark slides down and over the bulkhead in places. Bank Slope: The slope of the bank is the single most important factor that determines rate of erosion. Cut holes all the way through the panty hose for plants. Many are colorful and easy to grow in California and easy to grow on banks. Many different plants will perform beautifully on hillsides. Terraces should be slightly sloped perpendicularly to the hillside to allow for run-off. Just make a decision on which of these schemes to use, go out and buy the plants and get them into the ground post haste. The planting does not need to be boring. The bordering evergreen trees shed their needles on this area increasing the acidity of the soil. Other low-growing kinds include ‘Confetti’, ‘Cream Carpet’, ‘Dwarf Pink’, ‘Dwarf White’, Dwarf Yellow, and ‘Gold Rush’. Do they overhang the slope? Fall is the correct time of year to plant native plants, though November is the best month and it is cooler then. O yes, I forgot, we have deer that do get hungry and are a nescience to our residents growing roses etc. ¥ Prevent surface erosion on steep slopes ¥ Increase native riparian vegetation and habitat ¥ Stabilize small creek banks ¥ Divert and/or absorb runoff ¥ Minimize and prevent bank failure Soil-bioengineering has many benefits over more conventional engineering solutions, such as: ¥ Reducing maintenance costs Many thanks for this excellent comment. Agaves & cactus groundcovers work best as groundcovers for steep, sandy, full-sun slopes with succulents gradually added as the trees and shrubs provide shade. Your retaining wall should be about 18 inches to 2-feet high and can be as simple as a concrete block wall, covered with stucco and topped with red tile. There's also poplars. I am trying to do it as organically as possible. I have indeed recommended many plants as bank covers that are native to Australia, South America, the Mediterranean Basin, and South Africa. Due to the low bank position of the turf reinforcement mats, we decided that pre-vegetated coir logs would provide sufficient long-term protection. On three sides of the development, we have steep banks sloping down to our units varying from 40 to 45 degrees. I have indeed recommended many plants as bank covers that are native to Australia, South America, the Mediterranean Basin, and South Africa. Watch this video to find out more. I hope whoever cleaned off your bank left the roots of the plants in the ground. Time is of the essence. If your local nursery does not have the cultivars you need in stock you can order your desired variety or varieties in flats. A particularly attractive though usually expensive option is to install a rock garden. Yep, I planted flax. There are many types of shrubs, perennials, vigorous vines or groundcovers that can be used. On one street in particular, which is the 45 degree slope, has a bulkhead varying from 4 ft. high, down to 2 ft. high. For more ideas, why not look online or in a book store for books on landscaping near a pool. Plant desert groundcovers such as groups of Agave Angustifolia for holding soil on steep slopes, spikey A. Geminiflora grouped together gives the illusion of a grassy meadow. Landscaping Ideas: How to Stabilize a Steep Slope. Retaining Walls: Another option for a steeply sloped area is a retaining wall, but these work best in a smaller area where the run isn't too long. The ice plant will not regrow from the roots once the top of the plant is removed. I recommend you invest in a copy or at least consult it at your local library, since you can then look up the listed plants and learn their various characteristics. If I were you I would insist on one of the newer varieties such as ‘Sunburst’ (orange with black eye), ‘Sunglow’ (yellow), and ‘Sunrise Yellow’ (black centers, with large yellow flower.) I’ve seen banks languish for years with that ugly jute showing and the plants struggling to survive many years after they were planted. For a list of plants good for planting near swimming pools check the lists on pages 64 and 65 in the New Sunset Western Garden Book. There are many types of shrubs, perennials, vigorous vines or groundcovers that can be used. Plant grass — Planting grass does not stop erosion, and it’s been found that 30-75% of all rainfall on grass- covered slopes runs off. If desired, tile the side of the wall facing the pool in order to create a feature of the wall. Plants to stabilize a steep bank. Geranium macrorrhizum, geranium renardii (sun)alchemilla mollis (I know, it's a bit invasive with its babies, but it roots well into almost anything). ¥ Prevent surface erosion on steep slopes ¥ Increase native riparian vegetation and habitat ¥ Stabilize small creek banks ¥ Divert and/or absorb runoff ¥ Minimize and prevent bank failure Soil-bioengineering has many benefits over more conventional engineering solutions, such as: ¥ Reducing maintenance costs Turf grass is often a choice but consider the maintenance difficulties. The good news is that once you know which plants grow on slopes, you can use this knowledge to your benefit to plan a garden that both thrives and helps stabilize the hillside. I have a currently stable slope, but have just installed an in-ground pool and am now researching landscaping options for the slope and the rest of the yard. The best plants for erosion control are drought-tolerant, have extensive fibrous roots, and feature spreading foliage to slow the velocity of heavy rain. Dear Pat, I am living in L. A. I have a steep hillside which just get cleaned up. In winter, it's less attractive: I did this in one garden with a short but steep bank, and each winter I would go along the top and cut off all the old black growth. Instead try wildflower turf (for example MeadowMat from Enviromat or Wildflower Turf) or a seed-impregnated biodegradable mat ; Enhance existing grass by planting up with wildflower plug plants and/or bulbs suitable for naturalising such as crocus, snowdrops and many narcissus Many homeowners visualize a long expanse of lawn going down to the river, providing unobstructed views and velvety green expanses. A mixture of deep-rooted California native shrubs, and trees, mixed with shallow-rooted shrubs, and perennials, mulched and with no weeds, will control erosion on the slope. And on top of a hill, rainwater runs off much faster and makes this problem worse. Start by planting desert trees at the upper level such as Palo Verde (long tap root to stabilize soil), provides 25% shade during the summer. Dot the steep slope with native, drought-tolerant shrubs (Toyons, Lemonade-berry, low-water Manzanitas). On pages 242 to 247 of the above book you will find a list of Sources of Native Plants. In order to put something in quickly before the rain comes. It is essential to put as much effort as possible into actions that will stop the soil from washing away. Posted on June 24, 2006 by Horticulture Guy - Peter Punzi. They prevent run-off, which carries away soil and contaminants into waterways and increases pollution levels. Finally, not to confuse you, but for an intensely colorful look you could plant the bank with Plumbago ‘Royal Cape’ or P. ‘Imperial Blue’, bougainvillea ‘La Jolla’, and Lantana ‘Radiation’, with yellow trailing gazanias filling in the blank spots between. It did well for a while; then all leaves dropped but coming back now… The flat area also makes it easier to add a 5-10cm layer of mulch, which will to conserve precious moisture. Set bedding plants in the holes. One anomaly I notice is that you say that the slope is to the south and there are trees above which shade the slope. If I were you I would not mix native plants with trailing gazanias if that is what you were planning. Deep rooted plants help stabilize soil, trees add dimension and shade to prevent excess evaporation, and low growing ground covers cover up unsightly areas with ease of care. Thank you for suggesting that I provide some ideas for Cailfornia native plants that can be used to control erosion on steep banks. Standard recommendation is to hold the soil with grass (it dies in tough dry situations). If your hillside is really steep like mine, you will automatically create curving footpaths across the slope as you plant & water. Both plants are excellent choices in locations where aesthetics are important. This would be a permanent solution and once fully established would need no irrigation. Clusters of small (young)Ponytail Palms are also very drought resistant and their bulbous “feet” can be planted to hold and divert rainfall across the slope and into little swales created behind trees and shrubs. Continue Reading, Gardening Question From Martha: I have access to a commercial mushroom farm that makes its spent mushroom medium available at no charge to gardeners. If just one color, lavender-hued Lantana montevidensis would be an excellent choice, since it tends to spread and stay low. The deeper-rooted plants will have struck roots into the ground and should be holding the soil deeper down while the gazania should be covering the top. Plants’ roots stabilize the soil from below, while vegetation above the ground prevents erosion. (Native), Red Osier Dogwood (Cornus sericea or C. stolonifera) great soil stabilizer and has beautiful red stems. As the slope trees, shrubs & groundcovers mature into an interlocking root network , deepen the pathways across the slope to give rainfall plenty of time to sink into the soil. In this case a stucco wall with red tile top is perfect. As a general guide it is recommended that slopes be planted out with 4-6 grasses or ground covers per square metre. Standard recommendation is to hold the soil with grass (it dies in tough dry situations). When people take ice plant off a hillside for example, they should never pull it up, but simply clip it off. The more it rains, the more natural nutrients your plants lose. Other varieties include ‘Berries Jubilee” with bright red berries bringing birds (but these for sure would be spread around), and ‘Belgica’ which is more shrubby and thus less spreading and rampant. Don't think that you are limited to ground covers (perennials and short shrubs that grow … So turn a tough hillside flower bed into a beautiful planting by selecting easy-care groundcover plants for slopes that root into the bank wherever their stems touch soil. Choosing plants for slopes . The dead turf could be cut away to install the new plants. depressions as the water flows down the pond bank slope. Continue Reading, Gardening Question From Moira: Green caterpillars are eating our Bok Choy so I got your book out!!!! Native plants are perfect for sloping hillsides because they’re pretty, stabilize slopes and reduce water usage. This bank slopes up to the south. They remove water from the soil and carry it up into their tissues and release it as water vapor into the air (evapotranspiration). Ranmali. This morning I woke up with the thought that perhaps I should have recommended woodbine (Lonicera periclymenum.) Challenges in resolving grade change on the site are increasingly necessary as land cost increases and the difficulty to … When I had a garden with a very steep, high bank (about 30' high x 20'wide and steeper than 45 degrees) I made little planting holes for the plants that I wanted, only removing the nearest weeds til the wanted plants were established. In areas where snow cover offers a layer of insulation, the flower buds often go undamaged. Plants to stabilize a steep bank 0. The leaves of the plants also help to reduce the velocity of raindrops falling on the ground, making it harder for them to dislodge the soil and erode it. Plants placed along the sides of a ditch provide many benefits. I find lady bugs work very quickly to clear up aphids, within a week they can be gone. Summer irrigation can kill it. This area is very hard to maintain and dangerous to mow. Plants to stabilize a steep bank. Large trees, especially, can move large volumes of water. Jute does help the bank hold up, but the problem is that it absorbs water and this often prevents the plant roots from getting enough irrigation, since the jute absorbs it and even pulls the moisture out of the soil and then it simply evaporates into the air. When these start to establish, plant shrubs and trees. I planted a whole steep bank myself once in late summer when I was young and then I kept it watered daily by sprinkling with the hose. Thank you for your help! (This is the recent and most current edition and has an orange gazania on the cover. Figure 7 . Planting them up with the right plants will help counter erosion, slow water runoff, provide quick coverage and reduce maintenance. Continue Reading, Gardening Question From Adriana: I added lime to my vegetable garden soil and I killed everything i planted last year. There is no irrigation currently, however there is the option to install irrigation if needed. Both books are illustrated with informative photos. Thank you for your above recommendations. Erosion Control Methods Grasses and Grass-like Plants Turf grass is the least effective type of grass for stabilizing a pond bank slope. Continue Reading, Gardening Question From Crystal: I am going to be doing some container gardening this summer for the first time. The turf could be killed but left in place to stabilize the slope while the new replacement plants establish. I replied that it is too invasive and you will never get rid of it, but it went through my mind that I should also have suggested another honeysuckle that might be less invasive, though possibly more deciduous, dropping leaves if there is a hard frost. See more ideas about steep gardens, plants, steep. Continue Reading. … learned to spray BT. Plant roots are very efficient at anchoring loose soil on a sloped flower bed. The 1990 flood event left a steep 10 to 15-foot high raw embankment along the Hamakami Strawberry Farm. The roots took off and it held up fine through the rains. Plants To Stabilize A Steep Bank. If your streambank or shoreline is severely eroded, you will need to stabilize the soil to promote plant growth. For a dry slope that's difficult to water choose plants that cope in dry conditions. Answer from Pat: You can also choose native plants with different bloom cycles for year-round color and variation. Plants help protect against erosion in several ways. Soil Type: The consistency of the soil also determines rate of erosion. Dropmore Scarlet honeysuckle (Lonicera x brownii ‘Dropmore’) can also be used as a ground cover and it is a hybrid with brilliant summer bloom that brings hummingbirds but has few if any seeds to be spread by birds. Forget standard recommendations or you will need to do a lot of hand-watering or replanting. Plants help protect against erosion in several ways. Brushmattress details NRCS Engineering Field Handbook (210-vi-EFH, December 1996) In that case a wall is all the more necessary because it will keep all earth and debris from falling into the pool when you need to plant or maintain the bank. You are correct. If the wall is on the far side of a path, however, it could be a little higher and act as a place to sit. They’re typically used in situations where the shoreline on a pond, stream, or river bank is severely eroding. My friend suggested use Japanese honeysuckle as the hillside cover. On three sides of the development, we have steep banks sloping down to our units varying from 40 to 45 degrees. Riprap stones can also help to set re-sloped areas in place, especially when used in combination with filter fabric, such as an erosion control blanket. Tasred® Dianella tasmanica ‘TR20’ PBR: Dense tidy appearance with beautiful wide leaves and large purple berries in spring and summer. If you decide to go along with my suggestion on Ceanothus, I also suggest you consult a book called simply “Ceanothus” by David Fross and Dieter Wilken. Mowing is challenging and water will simply run off this high moisture loving plant. Groundcover Plants for Steep Banks. On one street in particular, which is the 45 degree slope, has a bulkhead varying from 4 ft. high, down to 2 ft. high. This improved Lomandra has a shorter size, finer leaf and strengthens the soil up to 216% (see research). Whenever possible, choose species native to your region, as they require less irrigation and fertilizer, both of which contribute to harmful run-off. I’ve recommended this mix of plants many times. This low, spreading, evergreen shrub reaches one to 2 feet tall and spreads three to 4 feet wide in just a season or two. Plant Grass and Shrubs. We have developed innovative techniques (low impact, low profile, low maintenance and low cost) to re-establish PERFORMANCE OF stability, STORM WATER MANAGEMENT AND HABITAT. Tolerates shade and won’t need as much water if partially shaded. I’m looking for native plants species for erosion ; many of the plants you mentioned are from Australian/S. If you’re into birds, and butterflies, using native plants will attract them to your bank. You will not be able to purchase gazanias at native plant nurseries since gazanias are not California or western native plants. If my high school geometry is still intact the trees above should be to the north of the slope which should allow light into the area. I live in the san Francisco Bay area and could you you let me know where I could buy these plants as well as some trailing Gazania? It … Just decide quickly and get going! cover and stabilize the entire streambank/shoreline and secured in place. Virtually all species and selections of ceanothus are recommended for erosion control. Q. I live in Lakewood in a large, beautiful gated condominium community of 65 single story duplexes. Click on the link below if you want a copy of our publication, revised, 2015. Our neighbors along the perimeter fence above have tall evergreen and leafed trees shading this area most of the day. Drought-resistant plants with spreading, fibrous root systems work well. Soil erosion happens when rain washes away tiny bits of topsoil that contain the most nutrients. This seems to be a terrific addition for my raised beds. You don’t mention where you live, but need to be aware that no plants can be planted and forgotten. Steep banks with slopes greater than 3 to 1 (3 feet of width for every foot in height) are almost certain to erode and undercut over time if they are not stabilized. Plants for steep, full-sun, sandy soil. All trailers have gray foliage and all the newer ones have larger flowers. Forsythia. Anything you can get to grow there will perform the same function. If you have a steep hill in your landscaping, you owe yourself a look at this ground cover. Would rectangular boxes… and grew on the following year. ‘Yankee Point’. Not to forget colorful wildflowers to add a very natural look. I say that we have to remove the fluffy decayed bark, apply a good grade of topsoil and plant something that will develop a good root system to hold the bank, that does not need much sun, would enhance the beauty and be easy to maintain. When I first planted my steep slope, I used dozens of standard recommendations of groundcovers such as grasses, desert penstemons and they either died or looked horrible. Add a few decorative trees such as Desert Willow if you are willing to handwater. Trees and shrubs should be planted as they would in a normal landscape design. Soil Type: The consistency of the soil also determines rate of erosion. Buy compost… The weed roots are holding the bank together. But I think a far better solution would be to plant California native plants all over the hillside such as Ceanothus griseus horizontalis ‘Yankee Point’, Archtostaphylos ‘Emerald Carpet’ , or Baccharus pilularis ‘Pigeon Point’. Some will survive with no irrigation once established, but many California native plants can survive in summer without irrigation. It is also deer resistant. In fact, strawberries from the farm were literally falling into the river channel. Another idea is to cover the bank with gazaneas. But like usual, trees can help! Hypericum Calycinum St. John's Wort Create a buffer of native plants between your ornamental garden and the edge of a steep slope. Start by planting desert trees at the upper level such as Palo Verde (long tap root to stabilize soil), provides 25% shade during the summer. (Native), Welcome to Peter Punzi’s Home of Gardening. Posted by Horticulture Guy ... we have steep banks sloping down to our units varying from 40 to 45 degrees. The decayed bark slides down and over the bulkhead, the 45-degree slope varies in length! Like sweet grass ( Muhlenbergia filipes ) or switchgrass ( Panicum virgatum ) this high moisture loving plant maintenance! Seeding a bank with gazaneas both above and belowground with their roots and trunk are vertical purple. The flat area also makes it easier to add a 5-10cm layer of insulation, the flower colors just... Hill in your landscaping, you owe yourself a look at this list you can mix colors up you... 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