Landscape workshop


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Landscape workshop

  1. 1. Landscape Workshop Sunrise Neighborhood August 16, 2012
  2. 2. Background of the Neighborhood• Contact the office of Historic Preservation for a complete historyBetsy Kellums at 350-9222•
  3. 3. Why Landscape your Yards• Increased property values• Improve air quality• Improve water quality• Energy conservation• Aesthetic value• Pride in homeownership and your neighborhood
  4. 4. Weeds A weed is defined as a troublesome or injurious plant. Plants that are commonly recognized, cultivated and maintained as ornamental, herbal, agricultural or xeriscape are not weeds. Weeds are not allowed on developed lots and are not considered landscaping. Weeds on developed lots must be removed and, when needed, landscaping that meets code requirements must be installed and maintained. Weeds on undeveloped lots must be kept cut low to the ground. If designated noxious weeds are present, they must either be removed or controlled per the City’s Noxious Weed Management Plan.
  5. 5. Landscape standards Lot Coverage All yards not covered by an approved building, driveway, walkway or other permanent structure must be landscaped. Bare dirt (except for seasonal vegetable/flower gardens) and weeds are not allowed. At least 50% of any required yard area, excluding driveways and walkway to the front door shall be live plantings. At least 50% of any parkway or right- of-way planting area, excluding driveways and public sidewalks, shall be live plantings. Areas visible from a public right-of- way or adjacent property are required to be landscaped. Yards not visible from the public right-of-way or adjacent property must be kept free from weeds and shall not be bare dirt.
  6. 6. Not 50% Live Planting
  7. 7. 50% Live Plant Cover
  8. 8. Why does the City require landscaping and live plantings? Trees and shrubs provide many benefits including:  reduced home or business heating/cooling energy use,  cleaner air,  lowered risk of heat-related illnesses and deaths,  improved storm water control and water quality,  reduced noise levels,  provide wildlife habitat,  improved aesthetic qualities,  increased property values, and  shaded roofs and pavement last longer.
  9. 9. Before and After
  10. 10. When do the landscape requirements apply? New construction All yard areas with a significant change of landscaping must meet the current Code requirements.  Altering 50% or more square feet of required landscape area in front yard, side yard, street side yard or public or private right-of- way  Removing any tree in any or each of the front, side, street side yards or public or private right-of-way  Converting any or each of a front, side, street side yard or public or private right-of-way from “traditional” to “xeric” as defined in the Code.  Yards that haven’t been maintained and contain primarily bare dirt, weeds or non-live materials not previously allowed under City codes.
  11. 11. What are the required yards: 15’ Driveway Clear Vision Zone Street Parkway Sidewalk Parkway Driveway Driveway Front Yard (42” Maximum Fence Height) Street Side Yard Yard Street Side Side Yard yard Street Side House 30’ Alley Rear Yard Clear (6’ Maximum Fence Height) Vision Zone Alley
  12. 12. What is the Parkway? The public right-of-way (ROW) is the area between the front property line and the street. The parkway is generally the open area between the public sidewalk and the street. This area is your responsibility to maintain – whether it is snow removal or landscaping. Rock, gravel and mulch are strongly discouraged, since the material may end up on the sidewalk, creating a hazard. If using rock, gravel or mulch it needs to be contained in edging. The ROW must contain 50% live plantings. If space allows, a street tree is required. Additional plantings of sod, perennials, and or non- woody groundcover (except spreading junipers) may be needed to meet this requirement.
  13. 13. Before and After
  14. 14. How do I determine how much live coverage I need?First figure the size of the yard:• Measure the yard’s length and width• Multiply the length times the width to calculate the square feet of the yard• Measure the driveway’s length and width and multiply to figure the square feet of the driveway; do the same for any paved walkways leading to the front door.• Subtract the driveway and walkways from the yard area. The difference is the square footage of the yard that must contain landscape material.
  15. 15. Take measurements:15’ Driveway Clear Vision Zone Front Yard Street • Step 1 – measure yard Parkway Sidewalk length & width Driveway Front Yard (42” Maximum Fence Height) • Step 2 – measure driveway length &Side Yard Yard Street Side House width 30’ • Step 3 – measure Rear Yard (6’ Maximum Fence Height) Alley Clear Vision walkway Zone Alley
  16. 16. Example Length Width Length x Width CalculationsRequired Yard 25 feet 75 feet 25 x 75 = 1375 1875Driveway Area 25 feet 20 feet 25 x 20 = 500 - 500 = 1375 sq ftWalkway Area 15 feet 3 feet 15 x 3 = 45 -45 = 1330 sq ftTOTAL 1330 squarePLANTING feetAREA
  17. 17. Calculating live plantings• Divide the square footage of the yard that must be landscaped by two. This gives you the minimum square footage of live plantings needed to cover one-half the required yard. – In the previous example, the total planting area was 1330 square feet. So the minimum area for live planting is 1330/2 = 665 square feet.
  18. 18. Vegetation Credit TableType of Plant Material Credit in Square FeetEvergreen tree (at least 25’ tall at maturity) 100Shade tree 50 (25 sq ft in right-of-way or parkway)Ornamental tree 25 (dwarf trees with mature width less than 10’ = 25 sq ft)Large shrub (more than 8’ tall at maturity) 50Medium shrub ( 4-8 feet tall at maturity) 25Small shrub (less than 4’ tall at maturity) 10Evergreen groundcover (less than 1’ tall at maturity) 25Perennial plant, groundcover, bulb/tuber, ornamental 5 (ornamental grass overgrass 4’ tall = 10 sq ft)Sod – calculate area covered by sod Full credit for sq ft
  19. 19. ExampleType of plant Square feet Number of plants Square feet x of plant numberHackberry (shade tree) 50 1 50 x 1 = 50Spring Snow Crabapple 25 1 25 x 1 = 25(ornamental tree)Sea Green Juniper 25 6 25 x 6 = 150(evergreen ground cover)Potentilla (small shrub) 10 10 10 x 10 = 100Iris (bulb/tuber) 5 10 5 x 10 = 50Daylily 5 10 5 x 10 = 50Little Bluestem 5 10 5 x 10 = 50(ornamental grass)Sod 250 1 250 x 1 = 250TOTAL PLANT AREA 675 square feet
  20. 20. • To determine if the existing or proposed landscape meets the minimum requirements divide the total plant area by the total planting area. Then multiply by 100 to find the percent of live plant coverage: – From the previous examples: 675 square feet ÷ 1330 square feet = .51 x 100 = 51% (total plant area ÷ total planting area) x 100 = percent live cover
  21. 21. Before and After
  22. 22. What else do I need to know?• Public right-of-way/parkway – A permit is required to plant, trim or remove trees in the parkway or public right-of-way.• The Planning Department can assist you in determining the amount of landscaping needed to meet code requirements.• Fences in the front yard cannot exceed 42” in height. Chain link fencing is not allowed.• Landscaping should not interfere with traffic or pedestrian safety.
  23. 23. Xeriscape• The use of climate adapted plants and utilizing planting techniques to create a beautiful, low water garden
  24. 24. Xeriscape: The Benefits • Water Conservation (46% or more savings) • Lower water bills • Can be reduced maintenance • Attractive (especially in winter) • Provides habitat for wildlife
  25. 25. Xeriscape –SevenPrincipals1. Plan and Design2. Create Practical Turf Areas3. Select Low Water Plants4. Use Soil Amendments5. Use Mulches6. Irrigate Efficiently7. Maintain the Landscape
  26. 26. Lets just get this out of the way right now-nor is it XeriscapeThis is not Xeriscape And will not meet city code
  27. 27. Planning and Design • Where does is make sense to have a pathway? • What do you want to screen? Enhance? • Do you have children, dogs or want to live outside? • Do you want to dine or entertain outside?
  28. 28. Create Practical Turf Areas • Where does it make sense to have turf? • Where does it make sense to have sidewalks, decks or hardscape? • Slopes • Long narrow stripes • Foundations
  29. 29. Use Low Water Plants• Hydrozone-group your low water plants together and your higher water plants together.• Put higher water plants where they are easy to water and keep an eye on.
  30. 30. Use Soil Amendments • Front range soils lack organic matter • Compost is not the same as topsoil • Compost is organic matter and breaks up clay • Compost helps sand retain water(recommend more compost with sandy soils) • Helps the soil texture • Adds organic matter • Encourages beneficial organisms
  31. 31. Use Mulch• Helps soil retain water• Reduces weed growth• Prevents temperature fluctuations• Gives landscape a finish look
  32. 32. Irrigate Efficiently• Runoff• Overspray• Mid-day• Wind• Pressure• Cycle and soak• Slopes• Back flow preventer
  33. 33. Maintenance • Watering • Weeding • Pruning • Deadheading • Mowing • Sprinkler maintenance
  34. 34. Costs of Xeriscape
  35. 35. Ways to Save Money• Use coupons – Valpak – Online coupons for landscape yards• Buy compost & mulch in bulk at landscape yards rather than in bags• Buy smaller plants-they will grow• Phase your project over the season or year• Find a gardener friend(s) and divide perennials• Take advantage of plant swaps• Collect seeds in the fall• Take advantage of fall sales on trees, shrubs and perennials• Salvage hardscape materials (bricks, flagstone, rock)• Make your own compost• Chip your tree trimmings for mulch
  36. 36. What can you expect to pay?• Compost $16-22 /cy• Mulch $30-55/ cy• Rock $200 /ton (~1.25 cy)• Sod $2.25-3.00• Grass seed $3.99/pound + up • ~6 pounds /1000 sf• 1 gallon perennial ~$10• 4” perennials $5-8• Shade Trees $260• Ornamental $50-80 CY + Cubic Yard = 3’x3’x3’=27 cubic feet• 5gallon shrubs $25-45
  37. 37. Installing a Lawn• Handouts for obtaining a new lawn variance• We require 4 cy of compost/1000 sf of lawn• Overseeding an old or patchy lawn• How to water to wean it off of the water
  38. 38. Tree Trimming
  39. 39. Large trees need to be professionally trimmed every 5 to 10 years. It is unsafe and harmful to the tree to not use a licensed professional.
  40. 40. Professionals must remove limbs in a controlled manner to avoid injury and property damage.
  41. 41. They must work at extreme heights using the proper equipment and safest techniques.
  42. 42. Each tree must be inspected before work to discover any hazards.
  43. 43. Sometimes hazards are found that can cause injury or death to the tree worker or cause property damage.
  44. 44. Tree removal work is extremely dangerous and there are many hazards involved.
  45. 45. Sometimes those hazards are visible but silent killers.
  46. 46. Tree work within 10’ of overhead utility lines must always be performed by the power service.
  47. 47. Never, ever “TOP” a tree! This is very bad for a tree and extremely dangerous to you. NO
  48. 48. Tree Maintenance
  49. 49. Rock that is used as mulch is very bad for trees.
  50. 50. Rock mulch raises temperatures and does not help to retain moisture. Rock mulch contributes to many tree deaths.
  51. 51. A better choice for mulch is natural wood chips.The chips help to stabilize soil and air temperatures and retain moisture.
  52. 52. Trees that are grown in lawns should always have a mulched area around them. This helps to keep lawn maintenance equipment from causing them damage.
  53. 53. Installing a mulch ring around your trees is important and CRUCIAL for the health of your trees.
  54. 54. Lawn maintenance equipment causes SEVERE damage to trees!
  55. 55. Tree Planting
  56. 56. Trees are sold in containers or heavy wire baskets.We recommend planting trees that are sold in containers.
  57. 57. Proper planting depth for your new tree is very important! Measure the depth of your planting pit first and double check the depth of the tree root ball.
  58. 58. When you dig a hole to plant a new tree, make sure the root flare of the tree sits at soil line or slightly above, NEVER below soil line.
  59. 59. The trunk flare or root flare should always sit at or just above soil line.
  60. 60. When planting trees that were grown in containers, slice the root system vertically 5 or 6 times to prevent roots that want continue circling the tree as they would in the container.
  61. 61. Root defects like this can be reduced by simply slicing or teasing the root system at planting time.
  62. 62. We use 2 stakes to hold the tree in place for at least 1 entire year.
  63. 63. When staking your tree, always use a canvas strap and never wire that can cause damage to the tree trunk and branches.
  64. 64. Build a soil berm around your new tree. The berm should hold about 5 to 10 gallons of water.
  65. 65. Fill this soil berm with water at least twice a month in the summer and once a month in the winter when the temperatures are warm.
  66. 66. The best way to determine if your tree is getting enough water is to consistently dig in the soil around your tree and feel if the soil is too dry or too wet. The soil here is extremely dry.
  67. 67. SummaryTree TrimmingAlways hire a professional to trim or remove your treesTrees should be trimmed every 5 to 10 yearsNever, ever work around or near overhead utility linesTree MaintenanceDo not use rock as mulchPlace a wood chip mulch ring around your treeTree PlantingPlant your new tree at or slightly above surrounding soil levelScore the root system of a containerized grown treeCheck soil moisture to see if your tree has the right amount of water