Spruce trees do not have very high phosphorous needs and benefit most form an acidic fertilizer designed for evergreens or a high-nitrogen fertilizer with a formula like 12-6-4 or 10-8-6. Organic fertilizer options include compost, fish emulsion, cottonseed meal and alfalfa meal.
How do you fertilize a Norway spruce tree?
Fertilize the Norway spruce tree once a month, beginning when you see new growth in the spring. Use a 20-20-20 fertilizer at the rate suggested on the package. Discontinue fertilizing in August. Inspect the Norway spruce for mite infestations.
When should you fertilize Norway spruce trees?
For the three initial growing seasons, feed the spruce a mild, slow-acting fertilizer in the form of tablets. An established tree only needs fertilizer two times a month during the spring and once a month in the summer. Norway spruce trees do not need fertilizer before they go into dormancy for the winter.
How often should spruce trees be fertilized?
For instance a spruce that measures 5 feet across would cover 25 square feet. A common “maintenance rate” of fertilizer is two to four pounds actual nitrogen per thousand square feet of soil surface, applied every two to four years. For mature, slower growing trees, one pound of actual nitrogen is probably enough.
How do you fertilize a spruce tree?
How to Fertilize Spruce Trees
- Plan to fertilize in the early spring or late fall. …
- Apply the fertilizer at a rate of one pound for every 3 feet of tree height. …
- Till the soil near the base of the tree, taking care not to damage the roots. …
- Dig holes in a circle around the tree.
Can you use Miracle Grow on spruce trees?
HOW TO CARE FOR YOUR COLORADO BLUE SPRUCE PLANTS. Fertilizing: We recommend you fertilize all your shrubs, evergreens, trees, groundcover, and perennials once every 3 weeks. … We suggest you use Miracle-Gro, a water-soluble fertilizer, or Milorganite, a granular fertilizer.
What is considered high nitrogen fertilizer?
Organic fertilizers that are high in nitrogen include urea, which is derived from urine, feathers, dried blood and blood meal. Feathers contain 15 percent nitrogen; dried blood contains 12 percent nitrogen; and blood meal contains 12.5 percent nitrogen.
Are coffee grounds good for spruce trees?
Will a homemade pine tree or evergreen tree fertilizer work? … For example, adding coffee grounds or organic matter around your evergreens’ soil is a good place to start if you need to increase your soil’s acidity.
Are spruce trees acid loving?
Not many plants are tolerant to the acidic soil that is caused by the fallen needles. There is often the challenge of selecting acid loving plants as well as shade tolerant plants for the same area of the garden. Trees that will tolerate acidic soils include; Birch, Larch, Pine and Spruce.
Is Epsom salt good for evergreens?
According to the Epsom Salt Council, Epsom salt increases the production of chlorophyll and helps plants grow bushier. … Use 1 tablespoon of Epsom salt for evergreen shrubs, and 2 tablespoons for evergreen trees.
Can you use Miracle Grow on evergreens?
If you have a variety of trees and shrubs in your garden, you can use an all-purpose plant food like Miracle-Gro® Shake n Feed® Flowering Trees & Shrubs Plant Food, which will feed for up to 3 months. … Miracle-Gro® also has tree spikes specially formulated for evergreens and fruit and citrus trees.
How do you make evergreen trees greener?
In very sandy areas or areas where the soil pH is more basic, your evergreens may have difficulty absorbing the nutrients they need. If your trees seem to be unnaturally pale green, they may need a little nitrogen. Never add fertilizer to the planting hole of your evergreens!
How do you care for a Norway spruce tree?
The Norway Spruce thrives in full sun and adapts to any soil that is well drained. A neutral to acidic soil is best. After planting, adding a layer of 1 to 2 inches of mulch will help keep the soil moist. Do not allow the mulch to touch the trunk as this increases the chances of pests and disease.
How do you help spruce trees grow faster?
Sprinkle a fertilizer around the base of the tree. Use a 10-8-6 quick-release formulation during April, May, June or early July. Between July 15 and October 15, choose a slow-release 10-8-6 fertilizer instead, so that you do not encourage too much growth before winter.