How To Care For Hydrangeas In Colorado. Hydrangeas also benefit from an occasional boost of fertilizer once or twice a year in spring or summer. To dry hydrangeas use one of the following methods.
Let them hang until they completely dry then. Make sure to keep your arrangement out of direct sunlight. After planting check frequently and water as needed.
Water at a rate of 1 inch per week throughout the growing season.
Another method for protecting hydrangeas is to wrap them loosely in foam such as egg-crate foam or insulation material such as the foil insulation used to mail climate-controlled packages. Hydrangeas can rot if they are placed too deeply in the planting hole and may dry. Grouping plants in a landscape with similar water needs is called hydro-zoning and is a design technique that can reduce your overall cost to maintain a landscape. Mountain hydrangeas are the least common mophead macrophylla.