1 Total Ads. The high extractives of mature wood can cause problems with some adhesives, but this is much less of an issue with young regrowth wood. ]]> The only problem that most people have with the wood is that it takes an incredible amount of … Pricing/Availability: Because the sapwood is so wide, only older mature trees will yield the darker Redgum heartwood lumber. The weight, when dry, is 32 pounds per cubic foot or about 2.6 pounds per board foot. The resilient wood is good for making tool handles. They will rot out if not all heart wood but last longer than most other woods. Yet, our enterprising forebears did find use for the wood. How to Tell the Black Gum Tree & Live Oak Tree Apart. 'dimension7': '221558', Black Gum will grow in wet soil. Strength.