HI Landscape study plan
HI Landscape · Give each week a clear focus.
8 weeks · About 6 hours per week
Landscape Design and Planning
Map the seven domain weightings against a self-rating scale from 1 to 5 and rank your weakest three subtopics inside Domain 1
Define site-analysis inputs (sun and shadow paths, prevailing wind, views and borrowed landscape, circulation desire lines) and sketch a bubble diagram for a 500 square meter residential lot
Convert a client program (outdoor kitchen, play lawn, screening, accessible path) into a functional zoning diagram with primary, secondary, and service zones
Draft a planting-design intent statement that ties each zone to a spatial purpose rather than to plant names
Your checkpoint
One hand-drawn or CAD site plan at 1:100 with zoning diagram, circulation arrows, and a one-page design intent statement
Landscape Design and Planning
Apply scale, proportion, and rhythm principles to critique two of your own schematic plans and annotate three specific revisions on each
Calculate impervious coverage and open-space ratios for a small commercial plaza layout and compare the result to a typical local zoning threshold
Sequence a design process from client interview through concept, design development, and construction documentation, listing the approval gate at each stage
Produce a planting plan legend that specifies botanical name, common name, mature size, spacing, and quantity for at least 15 plants
Your checkpoint
A design development package: revised plan, planting legend with 15-plus entries, and a written design rationale of roughly 300 words
Plant Selection and Horticulture
Build a plant-selection matrix scoring 20 candidate species against hardiness zone, mature size, water demand, sun exposure, soil pH tolerance, and maintenance level
Match at least eight species to specific microclimates on your Week 1 plan and justify each placement in writing
Classify the 20 species by growth habit, evergreen versus deciduous, and root habit, and flag any that conflict with hardscape or utilities
Distinguish the cultural requirements of turf, groundcover, shrub, and canopy layers and state one failure mode for each layer
Your checkpoint
A 20-species selection matrix plus a marked-up planting plan showing species codes matched to microclimate notes
Plant Selection and Horticulture & Site Assessment and Grading
Read a topographic map with 0.5 meter contours and identify ridge, valley, and drainage-shed lines, then mark the likely flow path across the site
Compute slope percentage between ten point pairs and classify each as walkable, plantable, or requiring a retaining structure
Specify soil amendment and drainage correction for one compacted area and one poorly drained area on your plan
Select and schedule plants tolerant of the wet and dry extremes you identified, with at least three species per extreme
Your checkpoint
A grading and drainage overlay on your site plan with slope calculations, flow arrows, and a revised planting schedule reflecting the soil and moisture findings
Hardscape Construction and Materials
Compare four paving materials on load capacity, permeability, slip resistance, freeze-thaw behavior, and installed cost per square meter
Detail a typical segmental paver assembly from subgrade through bedding sand and joint sand, labeling each layer and its compaction requirement
Size a modular retaining wall for a 1.2 meter height difference, including base course width, embedment, drainage gravel, filter fabric, and weep points
Identify three common hardscape failure modes (settlement, heave, efflorescence) and write the construction detail that prevents each
Your checkpoint
Two construction details drawn at 1:10 (paver edge restraint and retaining wall section) with a material comparison table of four options
Hardscape Construction and Materials & Irrigation and Drainage
Lay out a drip and spray irrigation zone plan for your site, assigning each hydrozone a precipitation rate and controller station
Calculate total flow and pressure demand for the design and check it against a stated available supply of 25 liters per minute at 3 bar
Design a surface and subsurface drainage scheme with pipe sizing, minimum slope, catch basin locations, and an overflow route to a legal discharge point
Write a winterization and seasonal adjustment procedure for the system you designed
Your checkpoint
An irrigation and drainage plan with a hydrozone table, flow and pressure calculation sheet, and a one-page seasonal operating procedure
Project Management and Estimating & Safety and Regulations
Build a quantity takeoff from your own plan for paving area, wall face area, plant counts, and mulch volume, then price it with unit costs and a 12 percent contingency
Draft a 12-line-item work breakdown with sequence, duration, and predecessor for a four-week installation
List the site-safety controls required for excavation, equipment operation, and utility locating, and state the trigger for each
Identify the permits, utility locates, and accessibility requirements that apply to your project and note who is responsible for each
Your checkpoint
A one-page estimate with takeoff quantities and totals, a Gantt-style schedule, and a permit and safety checklist
Landscape Design and Planning & Plant Selection and Horticulture & Hardscape Construction and Materials & Irrigation and Drainage & Site Assessment and Grading & Project Management and Estimating & Safety and Regulations
Complete 120 mixed practice questions under timed conditions and log every miss by domain and error type
Re-teach your three weakest subtopics from source material and write a five-line summary of each in your own words
Recompute the two calculations you missed most often (slope percentage, irrigation flow, or takeoff quantity) until you can do each correctly three times in a row
Assemble a one-page formula and reference sheet you can mentally reconstruct on exam day
Your checkpoint
A scored practice exam log with error analysis by domain and a one-page formula and reference sheet
Milestones
Week 2: You can produce a zoned concept plan with a defensible design rationale in under 90 minutes without notes
Week 4: You correctly read contours and compute slope percentage on ten out of ten practice point pairs
Week 6: Your irrigation flow calculation and drainage slope layout are internally consistent and you can explain every assumption aloud in two minutes
Week 8: Timed practice score is at or above 75 percent overall with no single domain below 60 percent