How Pennsylvania Auto Insurance Rates Are Determined. Just as it is in other states, in Pennsylvania, auto insurance is more expensive when the company providing your policy views you situation as more of a risk.
1 All trees, no matter how tall, have shallow roots. They go out, not down. Even a big tree's roots rarely go further down than 6.5ft (2m) and most are in the first 23.5in (60cm). 2 They rarely find their way down the water table but rely on rain water. 3 Roots anchor the tree and draw in moisture.
Roots grow in proportion to the height of the hedge. If a Leylandii hedge is kept to a reasonable height 2-3m (6-10ft) then the root system will be much less substantial (and much less likely to cause damage) than if the trees are left to grow to 10m (30ft).Roots often extend for a radius wider than the hedge height.arger Leylandii plants will establish and grow away quickly if they are planted properly. Leylandii have been selected over the years to establish well from larger plants. If you want a quicker screen, then plant larger specimens as this will save time.