Now that we are finishing another hot summer season, we can begin the annual task of repairing, replacing and preparing our gardens for the cooler seasons ahead. For the Desert Gardener, September first, Labor Day marks the beginning of “Labor Month” as we get back outside to work helping our plants to grow and flourish.
To do this, our initial task is to apply a good quality fertilizer to the soil to replenish nutrients that have been depleted during summer and to strengthen heat and sun weakened plants. Nitrogen, phosphorous, and potassium are the building block nutrients that will aid in this process.
In addition, applying specialized fertilizer for flowering plants, fruit trees and palms will contribute to this process.
During the hot and dry summer, the pH level of the soil can increase in alkalinity. High pH levels can prevent roots from absorbing nutrients. Therefore, an application of sulfur will address this issue and help plant roots to function.
It is important that your irrigation system is properly working so that nutrients are properly watered into the soil and reach the root systems. Keep in mind that you must reprogram your irrigation clocks to the “Fall Schedule” of three days per week.
It’s time now to address the needs of specific plants in your landscape:
1. Prune off all dead and damaged parts of all plants. This will encourage robust growth before the colder temperatures reappear.
2. Succulents need reduced amounts of water as the daylight hours decrease and temperatures become cooler. Treat soil around agaves with systemic insecticide to kill weevil eggs that will hatch and devour the roots. Treat prickly pear and cholla with malathion to prevent cochineal infestation.
3. Spray bushes affected with spittle bugs with an appropriate insecticide.
4. Fruit trees should not be pruned in September unless damaged and deciduous trees should not be pruned until their leaves fall later in the season.
5. This is the last month of the season to safely plant, shape or “shave” palm trees.
In addition, late September is an excellent time to start adding additions to your garden.
Have any questions? Contact me at: Theplantwhisperer28@gmail.com
