Cedar is the default choice for raised beds, planters, outdoor furniture, and garden structures across most of North America. It is widely available, easy to work with, naturally resistant to decay, and carries no chemical concerns near edible plants. Most gardeners build with cedar and do not question the choice.
Tigerwood earns consideration when durability expectations or aesthetic goals push beyond what cedar delivers. It lasts significantly longer, is harder, and has a visual character cedar cannot match. The trade-off is cost, availability, and the additional installation requirements that come with a dense tropical hardwood.
Species Background
Western red cedar (Thuja plicata) is a Pacific Northwest softwood harvested from managed forests in British Columbia, Washington, and Oregon. It has been used in outdoor applications for over a century and has a well-documented performance record in garden and construction applications. Eastern red cedar (Juniperus virginiana) is a related but distinct species, more variable in quality and less common in lumber markets.
Tigerwood (Astronium graveolens) is a South American tropical hardwood harvested primarily in Brazil. It has less market history in North American gardens than cedar, though it has been used in decking and outdoor furniture for decades. Understanding both species as real materials — not marketing categories — produces better purchase decisions.
Durability: A Clear Difference
Cedar's natural decay resistance comes from thujaplicin, an oil present in the heartwood. This compound resists fungal attack effectively, and in above-grade applications with good drainage and air circulation, western red cedar raised bed frames typically last 10–15 years. In sustained wet conditions or partial ground contact, cedar's service life can fall to 7–10 years.
Tigerwood achieves 20–30 years in comparable above-grade conditions. Its natural extractives are more robust against both fungal decay and wood-boring insects, and its density limits moisture penetration more effectively than cedar's lower-density softwood structure.
Janka hardness tells the same story: cedar registers approximately 350 lbf; tigerwood registers approximately 1,850 lbf. For raised bed applications where surface denting and abrasion are less relevant, this hardness gap matters mainly in long-term durability rather than day-to-day function. For decking or furniture, the gap is immediately practical.
Safety Near Food Plants
Both western red cedar and tigerwood are safe for raised vegetable beds. Neither contains chemical preservatives. Cedar's thujaplicin is the same natural compound that makes it decay-resistant — it does not leach into soil at levels that affect plant growth, and it has not shown any documented food safety concerns in decades of use as garden lumber.
Tigerwood's natural tannins and oils similarly pose no documented risk to edible crops. For gardeners who have been warned away from pressure-treated lumber in edible gardens — a legitimate concern with older CCA-treated wood — both cedar and tigerwood are unambiguously safe alternatives. The guide to sustainable raised bed wood covers the full spectrum of safe and unsafe lumber choices with sourcing guidance.
Workability: Cedar Wins Easily
Cedar is one of the most forgiving woods to work with. It cuts cleanly with standard blades, drives screws without splitting using basic construction fasteners, and requires no special tooling. Most garden DIY projects do not require pilot holes in cedar, and standard zinc or galvanized fasteners hold well in normal garden applications.
Tigerwood requires pre-drilled pilot holes for every fastener. Standard drill bits dull faster on tigerwood's harder grain. Galvanized fasteners are not adequate — stainless steel is required. For experienced woodworkers, these requirements are minor adjustments. For gardeners building their first raised bed, cedar's forgiving nature is a real advantage that reduces the chance of frustrating problems during construction.
Aesthetics
Cedar's appearance is clean, uniform, and familiar. Fresh-cut cedar has a pleasant reddish-brown tone and distinctive aroma that weathers to silver-gray over time. It looks appropriate in virtually any garden setting and does not call attention to itself.
Tigerwood is more visually assertive. The amber base with bold dark grain streaks creates a dramatic effect that either elevates a garden design or conflicts with it, depending on the aesthetic intent. For contemporary or architectural garden settings, tigerwood can be a real design asset. In traditional or cottage garden contexts, cedar's quieter appearance is often the better fit.
Cost Comparison
Cedar runs approximately $3–$6 per linear foot for 2x6 or 2x8 garden lumber stock in most markets. Tigerwood runs $6–$10 per linear foot for comparable dimensions. For a single 4x8 raised bed requiring 40 linear feet of lumber, the cost difference is roughly $120–$160. For a significant raised bed garden with multiple beds, the cumulative difference becomes more substantial.
When planning multiple beds, review the step-by-step raised bed construction guide for material quantity calculations, then price both species at local suppliers before committing. Regional supply variation can narrow or widen the cost gap considerably.
Which Should You Choose?
Choose cedar if: you are building your first raised bed, working on a limited budget, want the most accessible DIY experience, or are building in a context where the wood will be largely covered by plants and aesthetics are secondary.
Choose tigerwood if: you are investing in permanent raised beds intended to last 20+ years, value chemical-free natural durability without compromise, want a visually distinctive material, or are building raised beds as part of a considered landscape design.
Frequently Asked Questions
- Does tigerwood last twice as long as cedar in a raised bed?
- Roughly, yes. Western red cedar above grade typically lasts 10–15 years. Tigerwood in comparable conditions typically lasts 20–30 years. The exact ratio depends on climate, construction quality, and how much ground contact the lower courses experience.
- Is cedar easier to find than tigerwood?
- Yes, significantly. Western red cedar is stocked at virtually every lumber yard and home improvement center in North America. Tigerwood is a specialty item requiring a hardwood lumber yard or online supplier. Lead times of 1–3 weeks for tigerwood orders are common.
- Can cedar and tigerwood be mixed in the same raised bed?
- Structurally yes, but the color and grain contrast is significant. Mixing the two species in adjacent boards will look inconsistent rather than designed. If mixing is unavoidable, use tigerwood for the more visible faces and cedar for the less visible ones.
- Does cedar require any chemical treatment for raised beds?
- No. Western red cedar heartwood does not require chemical treatment to perform well in raised bed applications. Avoid cedar sold as "cedar-tone" pressure-treated — that product is pine that has been treated and dyed. Genuine western red cedar is naturally rot-resistant without any chemical additions.