Information about Robinia
- WELL ESTABLISHED IN EUROPE
- PLANTED IN CLOSE DENSITY TO PROMOTE FAST AND STRAIGHT GROWTH
- MANAGEMENT FOCUSED ON CREATING STRAIGHT ROUND WOOD
Robinia timber market
Robinia is a fast-growing hardwood tree that is in demand as a viable alternative to teak. As it is such a durable hardwood, more and more applications are being found for its timber boosting demand and increasing prices.
Robinia trees can be harvested for pole wood after 15 years, when they are intensively managed. Longer rotations will increase the value of Robinia timber greatly, as the trees grow in height and diameter. High prices are paid for Robinia trunks of at least 5 metres in length and 15-20 cm in diameter. The prices increase even more with greater length and diameter.
On our plantations we have used several different planting densities and have learned that planting them with 5,000 trees per hectare is the most efficient density.
Robinia trees need a lot of sunlight, which is why they will grow upwards rather than sideways, when planted in such close density. This planting density allows easy access for the tractors and other machines of the management companies and makes managing the trees easier.
Management of the current Robinia plantations is focused on achieving at least a length of 5 metres per tree. The diameter will depend mostly on the age of the trees, the older they are the bigger their diameter becomes.
Robinia is suited to areas with a temperate and dry climate with soil that is sufficiently loose (the sandy/loamy soil such as is found in Eastern Germany is ideal). The trees grow fast: about 1m in height and 1cm in diameter per year. The specific weight is quite high at an average of 750 kg/m3.
Freshly logged Robinia weighs 900-1200 kg/m3. This is one of the reasons why Robinia can be offered as a Class 1-2 durability timber.
- Very high resistance to wear (parquet)
- Very durable, even in water
- High percentage of heart wood
- Very hard and heavy
- High resistance to abrasion
- Very durable to weather influences
- No impregnation necessary
- Natural resistance to wood-destroying fungi and insects
- Replaces tropical timbers (teak, mahogany and bongossi)
- Good processibility
- Late burning point
- High dynamic strain properties (e.g. Axe handles)
- Garden furniture
- Wood construction for heavy duty use in mining, petroleum, water and shipbuilding
- Stakes and poles, sports and playground equipment