Q.
What is wrong with this bush or tree? What can I do to make it look healthy?
A.
What I am seeing is a thin canopy and some leaves that have brown tips (leaf
scorch). I think this is a ligustrum or privet. When I see a thin canopy, it
usually means the soil has “run out’ of organics. Rake the rock on top of the
soil back about two feet in all directions and apply a thin layer of compost.
This compost will “dissolve” into the soil with water and increase the
“organics”. Japanese privet in particular has a difficult time holding leaves when grass is removed.
This time of year (beginning of
October) we are transitioning from watering three times a week to two times a
week. Each application should be about 5 to ten gallons of water applied to
this area via three to four emitters. This can be calculated with the number of
minutes you are applying water combined with the size and number of drip
emitters. To change the amount of water, do not alter the minutes but instead increase the size of the emitters, or increase number of drip emitters.
The other option is to replace the
surface rock with a layer of fine woodchips over this same area. For faster results apply a thin layer of compost to the soil surface and water it in. Then cover this area with woodchips.