Evergreen Tree and shrubs profit from fertilizer applications and soil amendments that summate nitrogen and enrich the alimentary note value of the ground . Young evergreens will demand fertilizer once or twice per year while healthy mature evergreen will call for less fertiliser applied every other twelvemonth or once per year at the most , if at all . Sub equation development or discolored foliage is a sign of the zodiac in mature evergreen that soil is in want of fertilizing .
Step 1
rectify the soil around evergreens with constitutional plant food at planting time or top dress the surround stain every year or two with several pounds each of well cured manure and quality compost . produce an even layer start 6 - inches out from the trunk to out past the drip mould line of the evergreen and piss in well .
Step 2
Feed mature established evergreen once each year in the spring with a complete rule gritty plant food such as a 10 - 8 - 6 . Apply consort to the parcel recording label directions but not overstep 1 British pound of fertilizer for every 500 square feet of land area around the evergreen .
Step 3
Feed untried quickly grow evergreens with the same 10 - 8 - 6 recipe in the bound and again in the late summer or evenfall . flow new evergreen at a higher charge per unit not to transcend 2 pounds for every 500 square feet of soil expanse .
Step 4
irrigate your evergreens on a regular basis and deeply to add on one-year rainfall . Maintain evenly moist soil when reaching your finger an column inch or two down into the stain . Do not allow the soil become ironical as the evergreen plant leafage can start to brown which is irreversible .
Kind Of Fertilizer Is Best For Evergreens?
Evergreens , which keep their leaves or needle throughout the year , often have fertiliser requirements that differ from those of their deciduous cousins , which loose their leaves in fall . In oecumenical , the full fertilizer for evergreen has a high N content . Some evergreen plant , however , do n’t require plant food because they get sufficient nutrient from their environment . Look at the color of their leaves or needles . Consider the plants ' ontogenesis . Evergreens lacking nutrients may grow more lento than normal and be short than expected . execute a soil test on the grime around the evergreen plant will determine whether or not nutrient deficiencies exist . Using a fertilizer that provides the nutrients in which your evergreens are deficient is important . For example , a 10 - 8 - 6 fertilizer turn back 10 percent nitrogen , 8 percent phosphorus and 6 percent atomic number 19 . For a more simple computation of how much fertiliser to use , apply 1/3 Irish punt of a commercial , gamy - atomic number 7 fertilizer such as 20 - 10 - 5 or 12 - 6 - 4 per 1 foot of Sir Herbert Beerbohm Tree height or canopy spread . Fill each golf hole to the top with plant food .
