How to Prepare Commercial Landscapes for Vancouver’s Rainy Season

Vancouver’s rainy season changes how a commercial landscape needs to be managed. Once soils remain wet for longer periods, leaves collect around drains, turf becomes easier to damage and small drainage problems become much more visible.

For property managers, preparing commercial landscapes for Vancouver’s rainy season is less about completing one large cleanup and more about making sure the property can handle repeated wet weather without creating avoidable maintenance, access or drainage problems.

A good rainy-season plan should identify where water moves through the site, which areas need more frequent attention and which recurring problems require repair rather than routine maintenance.

If you have already completed a broader fall review, TERRMONT’s commercial fall landscaping checklist provides a useful starting point. Rainy-season preparation takes the next step by focusing specifically on how the property performs when conditions stay wet.

Commercial Landscapes for Vancouver’s Rainy Season: Priorities at a Glance

1. Start by identifying how water moves through the property

The most useful rainy-season inspection happens during or shortly after rainfall.

Walk the property and identify where water naturally travels from roofs, paved surfaces, parking areas and landscaped slopes. Note low areas, concentrated runoff and locations where water crosses pedestrian routes.

Pay particular attention to:

• Building entrances and accessible routes
• Parking islands
• Loading areas
• Turf beside pavement
• Sloped planting beds
• Downhill edges of landscaped areas
• Surface grates and trench drains
• Areas where mulch or soil repeatedly washes onto pavement

Do not assume that a property is draining properly simply because water eventually disappears. Repeated ponding, erosion or saturated turf can indicate that the site needs more than seasonal cleanup.

Metro Vancouver notes that urban development changes how rainfall is absorbed and transported, and that modern stormwater management combines drainage infrastructure with landscape-based approaches that slow or absorb runoff.

2. Keep accessible drainage routes clear before heavy rainfall

Wet weather and falling leaves arrive at roughly the same time in Metro Vancouver, which makes debris management particularly important.

Check accessible surface grates, trench drains and drainage channels regularly. Leaves, litter, mulch and sediment can restrict water before it ever reaches the underlying drainage system.

The City of Vancouver recommends checking catch basins before and after heavy rainfall and when trees are shedding leaves. The City also warns that blocked catch basins can contribute to flooding and property damage. Vancouver

For private commercial properties, establish who is responsible for inspecting each drainage feature. Municipal street drains, building drainage systems and private landscape drainage may fall under different scopes.

Routine commercial landscape maintenance can address accessible landscape debris and surface conditions, while underground drainage failures or building-related problems may require another qualified contractor.

3. Watch what happens after the rain stops

Some of the most useful information appears an hour or several hours after rainfall.

Document areas where water remains after surrounding areas have drained. Look for:

• Persistent puddles across pedestrian routes
• Standing water beside curbs
• Saturated turf
• Water flowing out of planting beds
• Sediment collecting around drain openings
• Exposed roots
• Washed-out mulch
• Soil moving down slopes
• Repeated wet areas beside buildings

Photograph the issue from a consistent location and record the approximate duration of the ponding.

This creates a useful record when deciding whether the problem is caused by temporary debris, compacted soil, poor grading, failed drainage infrastructure or another condition requiring investigation.

4. Manage leaves before they become a drainage problem

Leaf cleanup during Vancouver’s wetter months is not purely cosmetic.

Once leaves become saturated, they can form dense mats on turf, collect around drains and remain on pedestrian surfaces. Wind can also redistribute leaves shortly after a scheduled service visit.

Instead of relying on one large cleanup at the end of the season, high-leaf properties may require repeat service through active leaf fall.

Priority areas usually include:

• Main entrances
• Ramps and stairs
• Accessible routes
• Sidewalk interfaces
• Parking areas
• Drainage openings
• Loading zones
• High-traffic turf

Do not move landscape debris onto public streets or catch basins. Vancouver specifically advises against raking or blowing leaves onto streets, sidewalks, bike lanes or catch basins because of drainage and safety concerns. Vancouver

5. Protect turf when the ground becomes saturated

Turf that performs well during dry weather can deteriorate quickly when soils remain saturated.

Reduce unnecessary vehicle, equipment and pedestrian traffic across soft lawn areas. Mowing should continue while grass is growing, but crews need to consider whether the ground can support equipment without rutting or compaction.

If the same area repeatedly thins during wet months, investigate the cause before repeatedly installing seed or sod.

Possible contributing factors include:

• Poor drainage
• Shade
• Compacted soil
• Concentrated foot traffic
• Runoff from adjacent pavement
• Low areas in the grade

Rainy-season observations can provide useful information for future landscape construction and property improvements rather than treating the same damaged area every spring.

6. Adjust irrigation to actual conditions

An irrigation schedule set during summer should not simply continue unchanged into wetter weather.

As rainfall increases, review controllers and seasonal settings. Overwatering already-wet soil can contribute to saturated beds, unnecessary runoff and poor turf conditions.

At the same time, do not assume every part of the property has the same moisture level. Newly installed planting, covered areas and certain high-drainage locations may still require supplemental water.

During the transition into rainy season:

• Reduce irrigation based on rainfall and soil conditions
• Check for leaking valves or heads
• Record repairs needed before winter shutdown
• Confirm which areas still require supplemental watering
• Plan irrigation winterization before freezing conditions

Metro Vancouver maintains seasonal watering requirements for non-residential properties, so irrigation schedules should also remain consistent with current regional and municipal rules. Metro Vancouver

7. Check planting beds for runoff and erosion

Heavy or repeated rainfall can expose problems in planting areas that remain hidden during dry weather.

Inspect beds for:

• Mulch migrating onto walkways
• Bare soil
• Exposed roots
• Channels formed by runoff
• Soil collecting around drainage points
• Plants sitting in persistently wet areas
• Water flowing toward buildings or pedestrian surfaces

Reposition displaced mulch where appropriate, but avoid repeatedly replacing material without investigating why it keeps moving.

Some recurring problems may require grading, planting changes, edging, drainage improvements or other site modifications rather than ongoing cleanup.

The City of Vancouver increasingly uses landscape-based rainwater strategies because soils and vegetation can help slow, absorb and manage rainfall when properly designed. Vancouver

8. Give entrances and pedestrian routes extra attention

Rain changes how people experience a commercial property.

The landscaping around entrances, ramps, stairs and primary walkways should be reviewed more frequently because wet leaves, organic debris, overgrown vegetation and runoff can affect how those routes function.

During site inspections, look for:

• Vegetation narrowing walking areas
• Wet leaves collecting at entrances
• Runoff crossing sidewalks
• Moss or organic buildup
• Mulch washing onto pavement
• Branches obstructing lighting or signage
• Landscape material blocking drainage paths

TERRMONT’s commercial grounds and specialty services can support broader exterior-property presentation where landscaping interfaces with entrances, sidewalks and other high-use areas.

9. Inspect trees and shrubs after wind and prolonged rain

Wet soil and windy weather can reveal plant and tree problems that were less obvious earlier in the season.

Check shrubs and smaller landscape trees for damaged branches, unusual leaning, exposed roots or vegetation obstructing access and sightlines.

Potentially hazardous trees or large limbs should be assessed by the appropriate qualified tree-care professional rather than treated as routine pruning.

Rainy-season pruning should remain selective. The objective is to address condition, access and safety issues—not automatically cut back every shrub because the growing season is slowing down.

10. Separate routine maintenance from recurring site problems

One of the most valuable outcomes of rainy-season inspections is knowing which issues belong in the regular maintenance programme and which require a separate repair or improvement.

A useful site report should identify:

Routine maintenance

• Leaf and debris removal
• Bed cleanup
• Turf care
• Light pruning
• Accessible surface drain clearing
• Seasonal irrigation adjustments

Possible repairs or improvements

• Recurring ponding
• Failing grades
• Persistent erosion
• Damaged drainage structures
• Repeated turf failure
• Washouts
• Planting that consistently struggles in wet conditions

This distinction helps property managers budget accurately and prevents recurring infrastructure problems from being hidden inside routine landscaping tasks.

11. Establish a wet-weather communication plan

Rainy-season preparation should also define when the contractor communicates with the property manager.

Before the season is fully underway, confirm:

• Who receives site-condition reports
• How drainage concerns are documented
• Whether photos are included
• What constitutes urgent versus routine work
• How extra work is approved
• Who monitors the property between scheduled visits
• Whether service frequency changes during heavy leaf fall
• Which areas receive priority after storms

A clearly defined process helps prevent small observations from becoming forgotten maintenance issues.

Build a rainy-season maintenance plan around the property

Every commercial site handles wet weather differently. A retail plaza, strata complex, office property, school and industrial site will have different drainage routes, traffic patterns and landscape priorities.

TERRMONT provides commercial landscape management across Metro Vancouver and the Lower Mainland, with maintenance programmes built around the condition and operational requirements of each property.

If your property has recurring wet areas, drainage concerns or seasonal maintenance issues, request a site assessment to review the property before those concerns become spring repair projects.