| When and with what should I feed my arborvitae nigras? They are 5-6 feet tall and were planted in the fall of 1998. |
| Evergreens are generally fertilized once a year in spring. You could use a general, all purpose, balanced granular fertilizer such as 10-10-10 broadcast over the root zone at the rate recommended on the label, or you could use the fertilizer spikes made expressly for evergreens again following the instructions on the label. |
