Quote:
Originally Posted by soares  I am building a paver on pebble patio around a majestic 50 foot (17m) pignut hickory tree, but I dug too deep and too close on advice from two paver 'pros' and three books that apparently know nothing about trees. Trench completely encircles the tree, 8 inch (20cm) deep, 3 feet (1 meter) from the trunk. Four roots of 1.5 to 2 inch diameter (5 to 7.5 cm) diameter were cut, along with some smaller roots. The soil is 18in (45cm) earth on top of 3ft (1m) clay on top of sand. Tree is in full sun, New York, year round rains, 13in breast diameter ( 33cm). I will do anything to reverse my stupidity and save this tree.
My current plan is to treat with 150ml cambistat to stop crown growth and encourage root formation, sink 4 airholes near the trunk, and increase intensity (no freequency) of water and fertilizer.
Tree and owner thank you! |
OK, the tree is 33cm DBH and 17m tall pignut hickory.
Trench at entire circumference 1m away from trunk 20cm deep.
4 structural roots 5cm to 7.5cm dia were cut.
Were they all on one side or evenly all around the tree?
Were they clean cut with a saw or "hacked" off?
This link has some info of the trees tolerance to construction
http://snr.osu.edu/const.htm
What I'm not clear on is what else happened, like did you dig away the rest for paving depth? Or did you mound up on top of existing grade?
Some pictures would be real handy here.