The North Shore Seasonal Landscaping Calendar: What To Do Each Month

Landscaping on the North Shore runs to a different calendar than most of Canada. Mild wet winters, a long cool spring and a genuinely dry stretch in mid summer mean the timing advice in national gardening guides is often wrong for North Vancouver, West Vancouver and Burnaby.

This is the year laid out month by month: what to do, when to do it, and why the timing matters. It replaces several shorter pieces we had published separately.

The short version

• Spring, March to May. Clean up, aerate, overseed, plant cool season crops.
• Summer, June to August. Mow, water deeply, trim hedges, treat chafer grubs in July.
• Fall, September to November. The most important season here. Overseed, fertilise, lime, plant, trim hedges in October.
• Winter, December to February. Dormant pruning, mulching, structural work and planning.

Spring, March to May

Spring on the coast arrives early and slowly. The temptation is to do everything at once on the first warm weekend, but soil temperature matters more than air temperature.

• Clear beds of winter debris and cut back anything left standing over winter.
• Aerate compacted lawns and overseed thin areas.
• Plant cool season vegetables such as lettuce, spinach and peas in March and April.
• Hold off on warm season crops such as tomatoes, beans and squash until May or June, once frost risk has passed.
• Watch for aphids as new growth appears. Early detection with ladybugs or horticultural oils is far easier than treating an infestation.

Summer, June to August

The North Shore summer is drier than people expect, and lawns that were never deeply watered in June suffer in August.

• Mow regularly and avoid cutting too short. Longer grass shades its own roots and holds moisture.
• Water deeply and less often rather than lightly and daily, which encourages shallow roots.
• Trim hedges through the summer to keep shape.
• Apply nematodes for chafer beetle in July. This is the one date on the calendar that does not move.
• Watch for powdery mildew on roses, maples and cucumbers in late summer. Improve airflow and avoid overhead watering.

Fall, September to November

If you only take one season seriously, make it this one. The lawn and garden you have next spring is mostly decided in September and October, because warm soil and returning rain make it the best establishment window of the year.

• Overseed and apply fall fertiliser to help the lawn recover and thicken.
• Apply lime to correct soil pH. Heavy winter rain steadily acidifies coastal soil, which is what lets moss outcompete grass.
• Plant spring bulbs in September and October.
• Plant evergreens, shrubs and trees. Warm soil plus rainfall establishes roots with far less work than spring planting.
• Trim hedges in October. It encourages a final burst of growth, keeps shape through winter, and removes the loose growth that catches snow and breaks branches.
• Rake and compost fallen leaves rather than leaving them to mat down on the lawn.

Winter, December to February

Winter here is wet rather than frozen, so the garden is never fully out of action.

• Prune dormant deciduous trees and shrubs while the structure is visible.
• Mulch root zones for insulation and to suppress early weeds.
• Protect vulnerable plants from wind and occasional hard frost.
• Clear drains and check that water is moving away from the house. Most winter damage here is water, not cold.
• Plan next year’s work while the beds are bare.

Planting calendar at a glance

• Cool season vegetables: March to April. Lettuce, spinach, peas.
• Warm season vegetables: May to June. Tomatoes, beans, squash.
• Spring bulbs: September to October.
• Summer annuals: May to June, after frost risk.
• Evergreens and shrubs: September to October.
• Deciduous trees: late fall or early spring.

Pest calendar at a glance

• Aphids: spring into summer. Natural predators or horticultural oils.
• Chafer beetle grubs: treat with nematodes in July. Damage shows late summer into fall.
• Powdery mildew: late summer. Airflow, watering habits, fungicide if needed.
• Weevils: active spring to fall. Hand picking adults, nematodes for larvae.

Frequently asked questions

When is the best time to plant on the North Shore?

Fall, roughly September to October, is the best window for most trees, shrubs and evergreens. The soil is still warm from summer while the autumn rain does the watering for you, so roots establish before the following summer’s heat. Spring bulbs also go in during this window. Cool season vegetables go in March to April, and warm season crops such as tomatoes and beans wait until May or June once frost risk has passed.

When should I treat for chafer beetles?

July. Chafer eggs hatch in summer and the grubs are small and vulnerable then, which is when nematodes work best. If you wait until you see the damage, usually late summer into fall when birds and raccoons tear up the turf hunting grubs, you have missed the treatment window for that year.

Why is October the right month for hedge trimming?

A trim in October gives hedges one last flush of growth before dormancy, which thickens them up. It also removes the loose and overextended growth that catches snow, and snow load is the main cause of branch breakage and splayed hedges on the North Shore.

Do I really need lime on my lawn here?

Usually yes. The North Shore gets heavy winter rainfall, which gradually washes calcium out of the soil and pushes it acidic. Acidic soil favours moss over grass, which is why so many local lawns turn mossy. Lime corrects the pH so the grass can outcompete the moss rather than being treated for it every year.

What is the single most commonly missed task?

Fall overseeding and fertilising. Most people think of lawn care as a spring job, but on the coast the lawn you get in spring is largely determined by what happened the previous September and October. Warm soil and reliable rain make it the best establishment window of the year.

Can I do garden work through a North Shore winter?

Yes. Winter is the right time for dormant pruning of deciduous trees and shrubs, mulching root zones, and protecting vulnerable plants. The ground rarely stays frozen here, so structural work and planning continue through the season.

If you would rather not track any of this, our maintenance programmes handle the seasonal timing for you across North Vancouver, West Vancouver and Burnaby. See lawn and garden maintenance or request a quote.