Lawn and Garden β FAQ
How long will a cedar raised bed last as landscape edging?
Western Red Cedar beds last 10-15 years in ground-contact edging applications. Thicker 1-inch boards outperform thinner lumber. Elevate on a gravel base and avoid constant moisture to maximize lifespan.
Do I need to seal or stain cedar edging beds?
No. Cedar's natural oils provide rot resistance. Sealing traps moisture and can cause premature failure. Allow wood to weather naturally to a silver-gray patina for longest life.
What's the best height for edging raised beds?
11-12 inches defines edges clearly while allowing easy lawn mowing over the top. For decorative borders without planting, 6-8 inches suffices. For deep-rooted perennials, choose 17+ inches.
Yes, but use internal corner brackets for stability. Stacking two 11-inch beds creates 22-inch height for dramatic tiered edging. Anchor lower tier to ground with rebar pins to prevent shifting.
How do I prevent grass from growing into edging beds?
Install a 6-inch deep metal or plastic landscape edging strip below the cedar bed wall. Overlap the cedar bed exterior by 2 inches. This blocks rhizome spread while hiding the barrier.
Are these cedar beds safe for vegetable edging near lawns?
Yes. All listed beds use untreated North American cedar, safe for food production. Avoid pressure-treated wood. Cedar's natural thujaplicin oils deter insects without chemical contamination.