How much lawn can I convert to garden beds?

You can convert as much lawn as you want to garden beds — there's no legal limit on your own property in New Brunswick, though practical and aesthetic considerations should guide how much you convert.

The real question isn't how much you're allowed to convert, but how much makes sense for your property, your lifestyle, and NB's growing conditions. Many homeowners are converting 20–50% of their lawn to beds, and some go further with low-maintenance "no-mow" landscapes. It's one of the best ways to reduce maintenance costs and water use over time.

Practical Considerations for NB

New Brunswick's short growing season (roughly 120–150 days depending on your location) actually works in favour of garden beds — perennials, shrubs, and native plantings require far less ongoing work than lawn once they're established. A well-designed bed with proper mulching suppresses weeds, retains moisture through dry July stretches, and looks great from June through October.

That said, converting too much at once can be overwhelming. A common mistake is pulling up large sections of lawn without a planting plan, then struggling to fill the space. Start with 10–20% of your lawn area in year one, see how it feels, and expand from there.

NB-Specific Timing and Soil Notes

If you're in the Fredericton or Saint John river valley areas, you're likely dealing with clay-heavy soil — great for moisture retention but needs organic matter (compost, aged manure) worked in before planting. Coastal areas near Moncton or Shediac tend toward sandier soil that drains fast and benefits from compost to hold nutrients. Most NB soils are acidic (pH 4.5–6.0), so test before planting — many perennials prefer a slightly higher pH of 6.0–6.5.

The best time to convert lawn to beds in NB is late August through September. You can smother grass with cardboard and 4–6 inches of mulch (the "lasagna method") and let it break down over winter, leaving you with workable planting beds by spring. Alternatively, late May through June is ideal for immediate planting after soil warms above 10°C.

Practical Tips

Start by defining your beds with a garden hose to visualize the shape before you dig. Keep beds to a maximum width of 4–5 feet so you can reach the centre without stepping in. Maintain at least a small lawn area if you have kids or pets who need open space. Edge your beds cleanly — a crisp edge between lawn and bed makes the whole yard look intentional and well-maintained.

When to Hire a Pro

DIY bed creation is very manageable for most homeowners. However, if you're planning significant grade changes, installing raised beds with timber or stone edging, or want a full landscape design that balances beds with remaining lawn, a professional landscaper can save you money long-term by getting the layout right the first time. Expect to pay $500–$2,000 for a 100 sq ft perennial garden installed, or $300–$700 for a 4x8 raised bed built and filled.

Need help finding a landscaper to help plan or install your new beds? New Brunswick Landscaping can match you with a local pro for free.