What You Need to Know About Fertilizing and Watering - Southwest ...

Granular (dry) landscape plant fertilizers are typically not applied
with a spreader. If you don’t understand how to apply the
recommended amount after reading the label, read the application
directions from other brands to see if they are more understandable, ask
the sales clerk for help, contact the manufacturer or find another
product.
If you use a hose-end spreader, make sure that the directions clearly
state when you have applied the right amount. Water-applied fertilizers
generally do not contain a slow-release form of nitrogen and can more
easily leave the root zone of the plant if over-applied or overwatered.
(See Insert E for slow-release/slowly available forms of liquid nitrogen.)
Place fertilizers underneath the leaf-covered area of shrubs (the drip
line) until the plants are completely established. Fertilizers applied
outside of the drip line will not be available to the root zone of the
plant. They will be wasted and may lead to nutrient leaching.
When fertilizing your lawn, your landscaping will most likely have
access to the fertilizer as well. However, some trees and shrubs may
require different amounts than turfgrass. NEVER use a fertilizer that
contains a weed killer to fertilize around trees or other landscape plants,
as this could cause harm.
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