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Updated 06/10/18
*** BETA TEST *** |
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New WORKSHEET for DG 6.2
Plantable Area (PA) Required Plants
in Front and Side Yards .....
SUPPORT WATER CONSERVATION AND PREVENT ROOT CROWDING
Work with a landscape professional if necessary,
to select new plants and record these -- along with
all existing plants -- on ARC Checklist #19's required
scaled design drawing and the supporting Plant & Tree
List detail worksheets.
Follow design guidelines DG 6.1.1 through DG 6.1.11
for aesthetic shrub and ground cover plant location.
If this project is considered too small to warrant
applying for ARC approval and/or updating your lot's
landscape design drawing (check DG 2.9 requirements) ....
I suggest trying out the below calculations to find ways
to avoid overcrowded root systems and unnecessary
irrigation, whether or not you've decided to limit planting
to DG minimal 50% PA.
CALCULATION SUMMARY
A. Measure all yard areas per current DG definitions.
B. Add two columns for plant size and SF coverage
to the Checklist #19 Plant & Tree List detail worksheets:
1) Mature size (H' x W') from DG-Appendix A, Acceptable Plant List
2) Expected plant growth SF (No. x PCSF)
number of plants times the PCSF conversion table value for plant's width
C. Keep 3 separate Plant & Tree List detail worksheets for
tracking expected SF coverage in each plantable area (PA):
1) existing plants,
2) additional plants for DG minimal coverage,
3) desired optional plants.
D. Calculate how many plants are still needed in this PA
to meet current DG 6.2 minimal coverage of 50% at maturity.
E. Calculate the SF area left in this PA for optional plants
decorative rock, boulders, and/or bark filler per DG 6.2.
F. Calculate how many new five and one or two-gallon plant
containers are required for this PA per DG 6.1.
CALCULATION DETAIL -- For Each Plantable Yard Area
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A. Measure the following yard areas in square feet (SF) according to current DG (Design Guideline) definitions. These yard areas are used on the current ARC worksheets. Generally, there is a separate yard area YA for each side of driveway (A and B), and for side yard (C) if this is an exterior lot. So, we might have 1 - 3 separate sets of the below measurements and calculations, depending on the extent of our project. Design Guidelines Effective April 10, 2017 |
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https://sclhresidents.com/documents/10184/13538/Design+Guidelines+%28Effective+2017.04-10%29/a7d7c78c-2e95-4ce5-9154-123c46e3d929?version=1.1
DG 1.8.18 YARD AREA (YA) = ______ DG 3.3.4.c HARDSCAPE = ______ DG 1.8.10 LANDSCAPE AREA (LA) (YA) ______ - HARDSCAPE ______ = _______ DG 6.15 TURF / grass (max 50% LA) = _______ DG 1.8.14 PLANTABLE AREA (PA) (LA) - TURF ______ - WALLS ______ = _______ SF DG 6.2 AREA REQUIRING PLANTING (ARP) = 50% PA = _______ SF DG 6.2 All remaining PA after the 50% PA DG-required plant SF must contain either optional plants, decor rock, boulders or bark filler. DG 6.2.1 Decorative rock (max 20% PA) = ______ SF DG 6.11.2 Boulders (max 5% PA) = ______ SF 1 foot diameter = 1 square foot area. 2 foot diameter = 3 square foot area. 3 foot diameter = 7 square foot area. 4 foot diameter = 12 square foot area DG 6.2 BARK (max 50% PA) = ______ (Required Bark SF is calculated in STEP E) DG Appendix A, Acceptable Plant List https://sclhresidents.com/documents/10184/252552/Acceptable+Plant+List/0cde3f9c-8a2a-45e7-b052-3c0432a1ca7f?version=1.1 Plant Coverage SF Table W = width in feet = 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' PCSF = 3.14 x (W / 2)^2 = 1 3 7 12 20 28 38 50 64 78 SF Area (SF area of circle) |
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B. Add two columns to the Checklist #19 Plant & Tree List
detail worksheets. |
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These plant list detail worksheets currently begin on Checklist #19, page 6: https://sclhresidents.com/documents/10184/251862/Checklist+19+Landscape+Plants+Trees/1972f43b-39e2-44b2-940b-6ef4698d2cb8?version=1.2 1) Mature Size (H' x W') This is the expected growth data used on the ARC-required scaled landscape diagram showing the location and setback of each plant. We can find that data on our DG Appendix A, Accepted Plant & Tree List, or ask local nurseries, or check Internet landscape sites. Adjust 'W' for shrubs or ground-cover maintained differently. Acceptable Plant List: https://sclhresidents.com/documents/10184/252552/Acceptable+Plant+List/0cde3f9c-8a2a-45e7-b052-3c0432a1ca7f?version=1.1 2) "Expected Plant SF (No. x PCSF)" We will be calculating the total growth area SF to be expected for each type of plant at maturity. This is similar to the way total SF area is calculated for landscape boulders on ARC worksheets. Total expected plant SF coverage = No. of Plants x the PCSF conversion table value corresponding to this plant's width = Mature Size 'W'. Plant Coverage SF Table W = width in feet = 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' PCSF = 3.14 x (W / 2)^2 = 1 3 7 12 20 28 38 50 64 78 SF Area (SF area of circle) Example: Calculate total SF area coverage for five, three-foot wide Nandina plants. No. plants = 5 W' = 3' PCSF = 7 SF This is the value in the 'Plant Coverage SF Table' corresponding to width = 3'. Expected Coverage = 5 x 7 SF = 35 SF total area for 5 Nandina plants I suggest adding a copy of the PCSF conversion table to bottom of plant detail worksheets for easy reference. |
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C. Keep 3 separate Plant & Tree List detail worksheets
for each PA (plantable area): 1) 'Existing Plants', 2) 'NEW Required Plants' to meet DG minimum 50% PA, 3) 'NEW Optional Plants' if desired. Adjust and track the below totals for expected growth SF at maturity on these three Plant & Tree List detail worksheets, as plants are added or removed in STEP D and STEP E to support DG 6.2 definitions for PA: Total Existing Plant SF (max 100% PA) __________ Total for NEW Required Plant SF __________ Total for NEW Optional Plant SF __________ |
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D. Calculate how much of this PA still needs to be planted
in order to achieve its DG minimal SF coverage goal: PA (Plantable Area) = ________ SF ARP (Minimal Area Requiring Plants) = 50% PA = _______ SF subtract Total Existing Plant SF = _______ ARP-Remaining SF = _______ Is the ARP-Remaining SF less than or equal to 0 ? YES .... We do not need to add any more plants. Plants-To-Be-Added-Min SF = 0 If we do not want any more plants than necessary to achieve minimum PA goal: Remove plants from the scaled design drawing and 'Existing Plants' detail list, until Total Existing Plant SF = ARP (Or, as close as we can get down to ARP without going under the required minimal coverage SF.) Continue to STEP E NO .... Plants-To-Be-Added-Min SF = ARP-Remaining SF Add plants to the scaled design drawing per DG 6.1.1 through DG 6.1.11, and to detail on 'New Required Plants' list, until Total for NEW Required Plant SF is equal to or greater* than Plants-To-Be-Added-Min SF *Desired plant SF can exceed ARP-Remaining, but, to make adjustments easier later, try to use the 'New Optional Plants' list detail for most plant SF greater than ARP. Continue to STEP E |
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E. Calculate how much of this PA is still available for
optional plants, decorative rock, boulders, and bark: (Maximum PA percentages are included as not-to-be-exceeded DG guidelines). PA (Plantable Area) = ________ SF subtract Total Existing Plant SF (max 100% PA) ______ subtract Total for NEW Required Plant SF ________ subtract Boulders (max 5% PA) = ) ________ SF subtract Decor rock (max 20% PA) = ) ________ SF Area-for-Optional-Plants (max 50% PA) = ______ SF If Area-for-Optional-Plants SF = 0 go to STEP F (No room for bark filler) If Area-for-Optional-Plants SF is less than 0 Make adjustments until greater than or equal to 0 1) REDUCE boulder or decor rock SF AND / OR 2) REMOVE some plants If any plants are deleted from the 'Existing Plants' or the 'NEW Required Plants' detail lists, go back and start over at STEP D to ensure meeting the minimum DG goal SF. If Area-for-Optional-Plants SF is greater than 0 Add any new desired plants to the scaled design drawing per DG 6.1.1 through DG 6.1.11, and to the detail on 'New Optional Plants' list, making sure final Total for NEW Optional Plant SF does not exceed Area-for-Optional-Plants SF. Calculate how much bark filler to use for this PA: Area-for-Optional-Plants = _______ SF subtract Total for NEW Optional Plant SF _______ SF Required Bark Filler SF (max 50% PA) = _______ SF |
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F. Determine this PA's new plant container sizes:
Add up the number of all NEW plants on each PA Plant & Tree List detail worksheet = ______ Distribute plant count for this PA evenly between 5-gallon and 1 or 2-gallon containers, per DG 6.1: Number of 5-gallon containers = _________ Number of 1 or 2-gallon containers = _________ |
