Introduction to Crepe Myrtle Wood
Crepe myrtle (Lagerstroemia spp.), a beloved ornamental tree in Australian gardens, is more than just a stunner with its vibrant summer blooms and striking autumn colour. Many Aussie gardeners wonder: is crepe myrtle good for woodworking? The short answer is yes, particularly for small-scale projects like lathe turning, pens, and decorative items. Its dense, fine-grained timber offers attractive figuring and works well with hand tools, making it a sustainable choice from your backyard.
While not a commercial timber species like jarrah or blackwood, crepe myrtle’s wood has gained a cult following among woodturners worldwide, including in Australia. Grown extensively in warmer climates from Brisbane to Perth, it thrives in USDA zones 8-11 equivalents (think subtropical to Mediterranean). This article dives into its woodworking potential, practical tips for harvesting and processing, and project ideas tailored to Australian conditions.
Wood Properties of Crepe Myrtle
Crepe myrtle wood is renowned for its hardness and beauty. Here’s a breakdown:
- Density and Hardness: Janka hardness rating around 1,200-1,500 lbf (similar to oak), making it durable for wear-resistant items. Heartwood is dense at 700-900 kg/m³ when dry.
- Grain and Texture: Interlocking grain with fine, even texture. Quartersawn boards reveal stunning ray flecks and chatoyancy (that shimmering effect under light).
- Colour: Varies by variety and age. Sapwood is pale cream; heartwood ranges from light pink to deep reddish-brown. Australian-grown cultivars like ‘Natchez’ (white-flowered) often yield lighter tones, while ‘Muskogee’ produces richer hues.
- Figure: Often features burls, crotches, and wild grain patterns from multi-stemmed growth, perfect for eye-catching bowls or vases.
In Australian climates, wood quality improves in well-drained sandy loams of coastal Queensland or Sydney’s hinterland, where trees reach 6-10m. However, powdery mildew or aphids can blemish timber if not managed.
| Property | Typical Value | Comparison to Aussie Timbers |
|---|---|---|
| Janka Hardness | 1,200-1,500 lbf | Softer than Sydney blue gum (9,000 lbf), harder than radiata pine (500 lbf) |
| Density (dry) | 700-900 kg/m³ | Like spotted gum |
| Workability | Excellent with sharp tools | Comparable to silky oak |
Pros and Cons for Woodworking
Pros
- Accessibility: Prune branches annually (up to 30% in winter) for bushy growth and harvest 50-150mm diameter logs without killing the tree.
- Sustainability: Fast-growing (30-60cm/year in ideal spots), renewably sourced from gardens. No need for chainsaws in native forests.
- Turning Paradise: Glues well, takes finishes beautifully (e.g., tung oil for a glossy sheen). Low splintering on lathes.
- Fragrance: Mildly spicy scent while working—pleasant for long sessions.
Cons
- Size Limitation: Rarely exceeds 300mm diameter trunks in gardens, suiting small projects only. Larger specimens (15m+) are uncommon in Australia.
- Checking and Warping: Green wood prone to end-checking if not sealed promptly. Interlocking grain can bind saw blades.
- Dust Irritation: Fine silica content may irritate skin/respiratory system—wear masks and gloves.
- Availability: Mostly from coppiced multi-stems; straight-grained boards are rare without kiln drying.
For Aussie woodworkers, these traits shine in humid subtropical areas (e.g., Gold Coast) where rapid growth yields straighter branches than in drier inland spots.
Harvesting Crepe Myrtle Wood in Australia
Timing and method matter for quality timber.
- Pruning Season: Late winter (July-August) post-frost risk. Select 50-200mm diameter branches from established trees (5+ years old).
- Tools Needed: Pruning saw, loppers, chainsaw for thicker stems. Cut cleanly to avoid tearing.
- Processing Green Wood:
- Seal ends immediately with wax or latex paint to prevent checking.
- Air-dry in a shaded, ventilated shed for 6-12 months (1cm per year rule). In humid QLD, use fans to avoid mould.
- Or rough-turn and kiln-dry at 50-60°C for 1-2 weeks if you have access (community woodshops in Melbourne or Sydney often do).
Australian tip: In sandy coastal soils (pH 5.5-7.0), wood is straighter and less twisted. Avoid waterlogged sites where rot sets in.
Best Woodworking Projects for Crepe Myrtle
Its properties suit these beginner-to-advanced Aussie projects:
Lathe Turning (Top Choice)
- Pens and Bottle Stoppers: 150-200mm lengths turn silky smooth. Use ‘Siesta’ variety for pinkish cores.
- Bowls and Platters: From burls (up to 300mm). Highlight ray flecks with dewaxed shellac.
Hand Tool Projects
- Carvings and Ornaments: Whittles like cherry. Great for Christmas baubles or garden stakes.
- Small Furniture: Corbels, inlays, or knife handles. Pair with Tasmanian oak for contrast.
Advanced Uses
- Musical Instruments: Resonators for didgeridoos or guitar necks (tone similar to maple).
- Craft Boxes: Lidded keepsakes with crotch grain lids.
Finish with boiled linseed oil (fast-drying in our climate) or CA glue for stabilising figured pieces.
Example Project: Crepe Myrtle Pen
- Blank: 150x20mm branch section.
- Tools: Pen lathe, skew chisel.
- Time: 30 mins. Result: Premium gift using backyard wood.
Finishing and Tool Maintenance
Crepe myrtle sands to 400 grit like glass. Recommended finishes:
- Oil: Tung or Danish oil—enhances chatoyancy.
- Polyurethane: Water-based for indoor durability.
Sharpen tools often (interlocking grain dulls edges). Use 1,000mm/min feed on bandsaws.
Comparisons to Australian Timbers
| Timber | Best For | Why Choose Crepe Myrtle Instead? |
|---|---|---|
| Jarrah | Furniture | Easier to source small amounts, less expensive. |
| Huon Pine | Carvings | No rot issues, brighter colours. |
| Camphor Laurel | Turning | Harder, less oily (no clogging). |
Crepe myrtle edges out invasives like camphor for ethical reasons—it’s not weedy in Australia.
Sustainability and Legal Notes
In Australia, pruning your own crepe myrtles is fine (no permits needed). Sell turned items at markets like Brisbane’s Eat Street. Support natives? Plant alongside for biodiversity.
Pest Watch: Crepe myrtle bark scale (new in NSW/QLD) weakens wood—treat with horticultural oil.
Varieties Best for Wood in Australia
- ‘Natchez’: Tall grower, light wood for contrast.
- ‘Dynamite’: Red stems, vivid heartwood.
- ‘Acoma’: Compact, abundant prunings.
Grow in full sun, 1,000mm annual rain equivalents.
Conclusion
Yes, crepe myrtle is good for woodworking—especially if you’re an Australian gardener with a mature tree. Its beauty, workability, and backyard abundance make it ideal for hobbyists. Start small: prune, dry, turn. You’ll be hooked by the lustre. For larger needs, source from arborists or craft suppliers.
Word count: ~1,150. Happy crafting!