Landscaping Plant Care
Weed Control
Generally weeds that occur in planting beds do so through two venues, by germination from airborne seeds and those that arise from stolons in the soil. Weed barrier fabric can help prevent most stolons from growing, but there are some weeds that are very evasive and will find a way around such barriers. Therefore weed barrier should be thought of as a first line of defense only and must be supplemented by a routine chemical application program. Generally, the weeds that are airborne may be prevented from germinating by the use of a pre-emergent herbicide. While those that arise from stolons and may find there way around fabric barriers need to be killed with a post-emergent herbicide. Utilizing a combination of weed barrier and /or two types of herbicide and finally eliminating weeds by hand on a regular basis will keep bed areas under control of prevent a very strenuous weeding and clean-up project.
Fertilization
All ornamental trees, shrubs and groundcovers should receive a March or April application of spring fertilizer in either liquid or granular form. This application will assist in the growth processes, aid in color and assist in recovery of winter stress. A recommended formulation for use during this period would be 9-9-9. During late summer to early fall an additional application(s) may be beneficial utilizing a formulation of 5-10-15. The fall application will increase root development and reduce the amount of winter stress on your plantings.
Pruning
Pruning ornamental trees, shrubs and groundcover can be classified into the following key pruning periods: (1) Deciduous trees/shrubs: prior to the initiation of the growing season (December through March). (2) Flowering trees/shrubs: prune following the completion of the flowering process (April through June). (3) Hedge-type and broad-leaf evergreens: pruned/sheared in early spring, summer and if required early fall to maintain the desired shape/form. (4) Groundcovers: pruned/sheared as required to maintain within the desired growing area.
Removal of Stakes/Ties on Trees
Newly installed trees are often staked or guyed to encourage straight, up-right development and to reduce the possibility of damage caused by blow-over. The stakes and ties need to be removed approximately 12 months after the installation. This will prevent girdling of the trunk and allow the tree to strengthen itself.
Insect & Disease Control
Insect and disease control on ornamentals is important during the early spring and throughout the growing season. Please consult a professional arborist/horticulturist prior to incorporating control measures.
Watering
Begin your watering program in late March to early April (depending upon the seasonal conditions). The reactivation of your irrigation system (if applicable) should include a complete inspection of the system, including: visually inspecting for leaks; verifying that the system is operating automatically from your controller; verifying that each of the heads are operating properly and that the required areas of coverage are being sprinkled adequately; establishing the initial season's program for watering frequency and time.
Planting Areas
Although your home may have automatic irrigation, your new trees and shrubs should receive supplemental hand-watering during the first 10 - 20 days after installation. This will reduce the plant stress (by proving moisture throughout the root zone) and increase its chances for survival. After the plants have become established, the watering time should be similar to that of the turf areas with approximately 1/2 to 2/3 of the frequency.
General Notes
Your plantings and lawn need to be inspected regularly to identify excessive and/or dry areas. Seasonal watering adjustments (ie: due to rain, cooler/warmer temperatures etc) should be made to promote healthier plants and more efficient usage of our water resource. At the end of each season your irrigation system should be purged of water to protect the piping, valves and heads from freeze damage.