This Tree, shrub, and lawn care Fertilization and care Calendar is designed to help you care for your trees through the various seasons in the Arizona desert. Arizona temperature extremes, low precipitation and unique soil conditions present challenges to tree owners. Here’s a heads-up on things to consider each month to keep your trees healthy, safe and beautiful.
January
If you plan to spray your olive trees to reduce fruiting, pruning them now before they are sprayed will help give your spray applicator better coverage. Olive tree spraying January-Febuary Ornamental orange tree spraying to prevent fruit.
February
Can still spray olive trees and ornamental oranges to prevent fruit
Now is the time to put down the first of four applications of citrus fertilizer. (Feb/May/Aug/Oct)
March
Usually not too late to spray olive trees and ornamental orange trees
March is a good month for fertilizing all trees.
April
Late but often not too late to spray olive trees to prevent fruits.
May
May is the month for the second application of citrus fertilizer. (Feb/May/Aug/Oct)
June
The heat of summer is the best time to plant and transplant palm trees.
July
No fertilizing this time of year
August
August is the month for the third application of citrus fertilizer. (Feb/May/Aug/Oct)
September
September and October are good months to fertilize your trees. Research has shown that stored nutrients from fall fertilization produce vigorous growth in the spring. Plants seem to hit the road running, so to speak.
October
This is also the month for the fourth and final citrus fertilizer application. (Feb/May/Aug/Oct)
November
No fertilizing this time of year
December
No fertilizing this time of year
