Water soluble fertilizers are highly concentrated particles that dissolve in water and are then immediately available for plant root uptake. These fertilizers are ideally suited to annual flowers which are particularly fond of extra nutrients. Hose-end application systems using water soluble fertilizers have made fertilizing larger beds in the outdoor garden an easy task. These would be the top three to have in your garden shed. Should you have specific challenges', there are types for acidic plants and so on.
Granular fertilizers are the most puzzling for most home gardeners.
The numbers on the bags are similar and yet not the same, the prices make no sense and the ideal packaging is constantly being re-invented. The introduction of controlled-release fertilizers to the home market will add yet another product line and confusion to the equation. These have no risk of burn and are not full of filler. Pink gets its bulk from composted sludge and the Canagro products are derived from protein meals like bone meal and feather meal. Recently, home gardeners have been introduced to controlled-release fertilizers for gardens.