Normally you would tend to avoid planting shrubs and other 'Water Thrifty' landscaping plant materials in the hotter season's of the year. June, July, August are not your prime planting months especially for plant materials which normally in their native growing habit, hardly ever get supplemental watering during these hot months. Here in Southern California, we get most of our rains in the winter months of October,November, December up through hopefully March and April of the following year. Most water conserving/thrifty plants,trees, and shrubs drink up during those months and create a sort of reserve for the hotter months to come. Succulents like Agave,Cactus, and Aloes have a much better survival rate than their less fleshly cousins and the survival rate is much higher when planting these varieties during the warmer months.
There are still many landscape rebate programs going on here in Southern California and with that there are 'Deadlines' to get the make overs completed. This leads to customers needing to finish their projects as soon as possible even if it means planting in the warmer months of summer.
One of the best tip I can pass on to you is to be sure when you do plant your trees and shrubs, make sure you hydrate the hole for the plant with water and if possible mix within that backfill water some Moisture Manager water management product ( Check out the link on my website) which will help your plantings through the normal stress of being transplanted from a container where it has called home for many months and also help keep those water friendly plant materials properly hydrated by supplying available water vapor from the pore spaces within the soil at the root zone. The application will last up to 90 days so this is a real big plus as most newly planted shrubs,trees, etc... will take at least 60-90 days to grow out their root systems to properly anchor and stabilize the plant or tree before it actually starts to grow out in leaves,branches, flowering, etc.. ( I am writing a book which one of my chapter's' will cover the concept of root growth before a plant grows to it's maturity ).
Plant the shrub or tree a inch or so above the planting hole, be sure to create a nice water basin around the base of the tree or shrub and mulch within 3 to 40 inches of the trunk of stalk of the tree or shrub planted to help contain water when you do water your plants.( You can possibly get away with watering your new plants /trees 1-2 times per week especially after using the Moisture Manager in your water back fill when you first installed the plants.
Do your planting if possible early in the morning to help reduce the heat stress level or, in the early evening but, avoid excessive evening watering of your new plant materials as you do not want to welcome the opportunity for fungus of other diseases to have an opportunity to settle in especially if you live in humid zones of the state or country.
By being patient to when you do your planting, choosing the correct plants for the correct zones and utilizing the cutting edge products out there that can reduce planting stress levels and increase the moisture availability level for your landscape team, success during the hot summer month is within reach.
* Be sure to link to the "AS SEEN ON TV LINK" on my web site to be able to go directly to the 'Moisture Manager' website and receive a great discount on the product just by entering the discount code provided.