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Perfect pathways june 2017

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Talk on creating garden pathways. Part of 'Out of the wilds' native plant lecture series.

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Perfect pathways june 2017

  1. 1. © 2017 Project SOUND Out of the Wilds and Into Your Garden Gardening with California Native Plants in Western L.A. County Project SOUND – 2017 (our 13th year) 1
  2. 2. Kelley Dawdy CSUDH/Gardena Willows Wetland Preserve June, 2017 © 2017 Project SOUND 2
  3. 3. Hard vs Softscape Hardscape • Inorganic things • Walls • Benches • Sidewalks/paths • Patio • Driveway Softscape • Organic stuff • Plants • Trees • Groundcovers • Vines © 2017 Project SOUND 3
  4. 4. Hardscape © 2017 Project SOUND 4
  5. 5. Hardscape Surfaces Permeable aka porous or pervious • Planting Beds (softscape) • Mulched Beds (softscape) • Turf • Gravel • Permeable Pavers • Stepping Stones • Concreted brick or stone • Concrete pavers Impermeable • Asphalt • Concrete • Concreted brick or stone • Concrete pavers © 2017 Project SOUND 5
  6. 6. Hardscape Surfaces Permeable aka porous or pervious • Definition: surface that allows water to infiltrate underlying soil • “Waters” your garden • Filters pollutants • Recharges water table Impermeable • Definition: surface that facilitates 100% runoff • Cheaper • Less maintenance (?) © 2017 Project SOUND 6
  7. 7. Types of Permeable Surfaces • Gravel © 2017 Project SOUND 7
  8. 8. © 2017 Project SOUND 8
  9. 9. Types of Permeable Surfaces • River Rock or Mexican Beach Pebbles © 2017 Project SOUND 9
  10. 10. © 2017 Project SOUND 10 • River Rock or Mexican Beach Pebbles
  11. 11. Types of Permeable Surfaces • Stepping Stones or flagstone © 2017 Project SOUND 11
  12. 12. © 2017 Project SOUND 12
  13. 13. Types of Permeable Surfaces • Concrete steppers © 2017 Project SOUND 13
  14. 14. © 2017 Project SOUND 14
  15. 15. Types of Permeable Surfaces • Loose lay brick © 2017 Project SOUND 15
  16. 16. © 2017 Project SOUND 16
  17. 17. Curved bricks and steppers © 2017 Project SOUND 17 Steppers
  18. 18. Types of Permeable Surfaces • Loose lay stone © 2017 Project SOUND 18
  19. 19. © 2017 Project SOUND 19 • Loose lay stone
  20. 20. Types of Permeable Surfaces • Permeable Pavers © 2017 Project SOUND 20
  21. 21. Types of Permeable Surfaces • Mixed Materials © 2017 Project SOUND 21
  22. 22. © 2017 Project SOUND 22
  23. 23. Decomposed Granite • Aka DG • Locally sourced (Santa Monica Mountains) © 2017 Project SOUND 23
  24. 24. Design • Eclectic is very hard to do well. • What style is your house? • Does your neighborhood have a style? • What color is your house? • What style are you drawn to: – English garden – French country – Formal – Modern © 2017 Project SOUND 24
  25. 25. Design = Less is More How does this make you feel? © 2017 Project SOUND 25
  26. 26. English Cottage Garden © 2017 Project SOUND 26
  27. 27. French Country © 2017 Project SOUND 27
  28. 28. Formal © 2017 Project SOUND 28
  29. 29. Modern © 2017 Project SOUND 29
  30. 30. Asian Gardens © 2017 Project SOUND 30
  31. 31. Pinterest.com © 2017 Project SOUND 31
  32. 32. Building the Path © 2017 Project SOUND 32
  33. 33. Sub-base? • In my opinion, a sub-base is unnecessary, unless you have expansive soil – Palos Verdes & the “soils area” in Torrance – Or you are installing a driveway – Follow the directions for specific products – Ask the seller of the product © 2017 Project SOUND 33
  34. 34. Levelling/Subbase materials Levelling: • DG (decomposed granite). Bulk only. Compacts better than sand. • Sand, plaster. Comes in bags or bulk. Subbase: • “Pre-mix” is a mixture of sand and gravel. Bulk, only. Use as the subbase for expansive soil. Can be rolled or vibrated. • ¾” crushed gravel. Bags & bulk. Needed for driveways. Excellent drainage. Needs to be vibrated. © 2017 Project SOUND 34
  35. 35. Rolling/compacting/vibrating/jumping • Roller, sod. Rent $10/day • Compacter/tamper. Rent, buy or make. Rent $7/day. • Vibratory plate compactor. Rent. $72/day. • Jumping Jack. Rent $90/day. Only use to compact very deep, loose soil. Very dangerous. © 2017 Project SOUND 35
  36. 36. Installation • Weed mat? No, thanks. © 2017 Project SOUND 36
  37. 37. Prepping the area • At what height do you want the walkway or patio? • An inch or 2 above the planter beds? • A “step” down from the door? Use <1” or 4 - 7½” (code). 1-4” is a tripping hazard. • Make sure that you are not covering a drip edge. As per code, grade must be at least 4” below. © 2017 Project SOUND 37
  38. 38. CA drainage code Project SOUND 2016 © 38
  39. 39. Drainage • Make sure that you have “positive drainage” away from your foundation. • Code: 1” of fall (rise) over 4’ around the foundation. That’s 2% (1:48)≈(1:50)=(2:100). 48” Masonry level ≈ $50-75 © 2017 Project SOUND 39
  40. 40. Drainage • Finished concrete 1 – 2% (½ - 1:48) • Permeable surfaces 3 – 4% (2:48) • ADA ramp 8% (1:12 or 4:48) • Don’t forget the side to side drainage © 2017 Project SOUND 40
  41. 41. Tools of the trade • 48” Masonry level • Masonry line • Stakes • Mallet (deadblow or rubber) • Trowel, brick • Sod roller • Tamper © 2017 Project SOUND 41
  42. 42. Excavating tools • Mattock/pick • Shovel • Wheelbarrow • Grading rake • Push broom • Hose with nozzle © 2017 Project SOUND 42
  43. 43. Prepping the area for gravel • Gravel and Mexican Beach pebbles are easy – You’ll want 3-4” in depth – Do you need to dig out (lower) the native soil? – Does it need to be compacted? (Probably not.) – Is there sufficient drainage/fall of the native soil? – Buy gravel or beach pebbles. – Dump them. Rake. Done! © 2017 Project SOUND 43 Size of Beach Pebbles Coverage (square feet/ 75 lbs. bag) ½” – 1” 12 1” – 2” 7 2” – 3” 4 3” – 5” 3
  44. 44. The problem • After several years: • Easy solution: buy more and “top dress” • Hard solution: remove all the rock, clean & put them back. © 2017 Project SOUND 44
  45. 45. Installing steppers • Rectangular steppers © 2017 Project SOUND 45
  46. 46. Installing steppers • Concrete or cut stone – Remove enough soil to finish at the desired height – Rake out 2” of DG (decomposed granite). Roll or vibrate. – If using rectangular pieces, in a line, set-up masonry line (not string). © 2017 Project SOUND 46
  47. 47. Installing steppers • Rectangular steppers © 2017 Project SOUND 47
  48. 48. Building the Path © 2017 Project SOUND 48
  49. 49. Check square Check the diagonals and/or check 3-4-5 © 2017 Project SOUND 49
  50. 50. Installing steppers, continued – Calculate your spacing. Walk it to make sure it “feels right”. Approx. 30 – 36” – Start laying out the steppers. – Confirm that the edge is barely touching the line. – Check side to side level (1 – 2% fall). – Not “level”, tip it up, use a trough to add more DG. – A tiny bit too high? Whack it with a rubber mallet or dead blow hammer. © 2017 Project SOUND 50
  51. 51. Working with natural stone? • Brick hammer/chisel • 4½” angle grinder with a diamond blade • 2x4” piece of lumber • Sledgehammer – For very large pieces of rock that you want to break in half, lay it over the 2x4”, approx. where you want it to break, lightly hammer it above the 2x4” until it breaks. © 2017 Project SOUND 51
  52. 52. Back to the flagstone path • Everything is the same, but • Put the masonry string down the middle or off center, or • Use a long, straight 2x4” to confirm that the tops of the flagstones are all in the same plain. • Use your 4’ level to double check stone to stone “levelness.” © 2017 Project SOUND 52
  53. 53. © 2017 Project SOUND 53
  54. 54. © 2017 Project SOUND 54
  55. 55. Common problems (downfalls) • Use DG, not sand • Check level • No more than 2 (or 3) materials • Use flagstone that is at least 2” thick & 2 square feet each • “Work the puzzle” © 2017 Project SOUND 55
  56. 56. © 2017 Project SOUND 56
  57. 57. Use flagstones of comparable sizes © 2017 Project SOUND 57
  58. 58. They didn’t “work the puzzle” © 2017 Project SOUND 58
  59. 59. Flagstone patios Break-up the “grout” lines. Make “T”s. © 2017 Project SOUND 59
  60. 60. Brick/paver walkways and patios • Decide on a pattern • Decide the type of brick © 2017 Project SOUND 60
  61. 61. Bricks need borders • Plastic Bend-a-Board • Plastic or metal brick edging • Mortared brick border © 2017 Project SOUND 61
  62. 62. Brick/paver walkway and patio • Prepare the native soil to the right height • Confirm positive drainage • Set the borders first • 2” DG • Roll the DG • Start setting bricks/pavers • Check “level” often • If there are gaps, fill with DG, silica sand or polymeric sand (not permeable). © 2017 Project SOUND 62
  63. 63. Types of pavers • Permeable Pavers © 2017 Project SOUND 63
  64. 64. Grasscrete-type products BodPave TERRUM TruckPave Grasscrete Porous Pave © 2017 Project SOUND 64
  65. 65. Final steps Tried and True Steps – done by every professional • Bricks and brick-sized pavers can be vibrated. • Water, water, water. • Sit back and admire your work. • Next day: check for “dancing flagstone.” Tilt up and add more DG. • More water. • Ice tea or beer. • Sit back and admire your work some more. © 2017 Project SOUND 65
  66. 66. Care and Maintenance For loose lay: • Settling may occur – Tilt the rock/paver, add a little bit more DG • “Grout” may settle or wash away – Add more DG • Border may move (shrink, lift, sink) – Reset or add more DG © 2017 Project SOUND 66
  67. 67. Care and Maintenance If it looks too dirty: • Power washing will remove any dirt • Bleach (1:1 with water in a spray bottle) will remove any algae © 2017 Project SOUND 67
  68. 68. Care and Maintenance Weeds • Mechanical – Hand pull – Weed knife • Chemical – Boiling water – Baking soda 2-4 times a year – Round-up (Glyphosate is relatively benign) – Vinegar + soap + salt in spray bottle • One gallon of vinegar • Add 1 Tablespoon of dish soap • Add 1 Tablespoon of salt © 2017 Project SOUND 68
  69. 69. South Bay Suppliers • Thompson Building Materials. www.thompsonbldg.com 2400 Pacific Coast Hwy, Lomita, CA. (310) 326-5160 – Bulk: sand, DG, gravel, pre-mix, tools (all). Bagged concrete. – Pavers, brick, grasscrete-type pavers, concrete steppers, used brick • Thompson Building Materials – Rock Yard 1350 W Pacific Coast Hwy, Wilmington, CA. (310) 830-5584 – Bulk: Sand, DG. Bagged concrete. – LARGE flagstone, decorative gravel, & Mex beach pebble selection © 2017 Project SOUND 69
  70. 70. South Bay Suppliers • Westwood Building Materials www.westwoodbm.com 15708 Inglewood Ave, Lawndale, CA 90260 (310) 643-9158 – Bulk: sand, pre-mix, ¾” crushed gravel. Bagged concrete. Tools. – Will deliver. ½ cubic yard minimum. • Sepulveda Building Materials www.sepulveda.com 359 E Gardena Blvd, Gardena, CA 90248 (310) 436-1400 – Bulk: sand, gravel. Tools. Bagged concrete. – Nice selection of flagstone and boulders. – Will deliver. © 2017 Project SOUND 70
  71. 71. South Bay Suppliers • West Los Angeles Building Materials www.flagstonespecialist.com 2431 S Sepulveda Blvd, Los Angeles, CA 90064 (310) 478-7276 – Bulk: sand, pre-mix, gravel. Tools. Bagged concrete. – Decorative gravel, flagstone, boulders, cobbles, pebbles, used brick, used concrete • Bourget Brothers www.bourgetbros.com Building materials: 1636 11th St., Santa Monica, CA (310) 450-6556. – DG, decorative gravel, glass, tools Rock yard: 1810 Colorado Ave, Santa Monica, CA (310) 829-4010 – Beautiful flagstone. Huge supply. Expensive! © 2017 Project SOUND 71
  72. 72. South Bay Suppliers • B.D. White www.bdwhitetopsoil.net 19205 Prairie Ave, Torrance, CA 90503 (310) 370-5511 – Bulk: topsoil, sand, DG, pea gravel, ¾” natural gravel. – Landscape timbers & RR ties – Will deliver. Minimum = 1 cubic yard. • Ewing Irrigation www.ewing1.com 20526 Gramercy Pl, Torrance, CA 90501 (310) 782-7821 – Bend-a-Board™, brick Snap Edge Pavers™ – Pavers © 2017 Project SOUND 72
  73. 73. South Bay Suppliers • Anthony’s Ready Mix & Building Supplies www.anthonysreadymix.com 4500 Manhattan Beach Bl., Lawndale, CA 90260 (310) 542-8585 – Brick, flagstone, bagged concrete – Concrete and mortar colors – Concrete stains • Home Depot – Bagged gravel and sand. – Tools. – Pavers & brick – Concrete pavers. – Pre-mixed concrete – 60 & 94 lbs bags. © 2017 Project SOUND 73
  74. 74. South Bay Suppliers • Artesia Building Materials www.artesiabuildingmaterials.com 16632 S. Pioneer Blvd, Artesia, CA 90701 (562) 926-2371 © 2017 Project SOUND 74
  75. 75. Questions? © 2017 Project SOUND 75

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