The Waterboxx can boast of incredible results with establishing trees, but the selection of tree species is also very important. It would not be wise to plant a mangrove or willow in the desert, for example. So what trees are drought tolerant and will grow well in dry environments? Due to the large number of drought resistant trees in the U.S, only conifers will be covered in this post. See drought resistant deciduous trees here.
Among conifers, pinyon pine is popular as a drought tolerant tree. It is native to the Southwest, has edible nuts, and has a pleasant smell when burned. It can grow well in areas of 9-15 inches of rain yearly, and of course will quickly become established with the Waterboxx. To bear nuts, two or more pinyon pines will need to be planted near one another. There is a pest called the Pinyon Ips beetle which will sometimes attack weak trees, so it is important that the tree become well established. Of note, wildlife may be attracted to this tree. The tree grows 20-40 feet at maturity.
If looking for a drought resistant windbreak, the Arizona Cypress is a wise and attractive choice. Grown in zones 7-9, it grows 40-50 feet at maturity and with fast growth (3 feet per year) with good water conditions, like those established by the Waterboxx. The Arizona Cypress generally needs 10-12 inches of rain yearly after establishment. This tree can be vulnerable to fire and has a 30 foot spread, so proper spacing is vital, and hedges planted for windbreaks should be planted in a offset (or Z formation) double hedge with dead brush removed from the base. See how to plant trees to avoid wildfire here.
As with all trees planted with the Waterboxx, it is imperative to plant young, small, bare root trees. Not only are these trees inexpensive, but they also do not have malformed root systems seen with larger trees, nor do they have poor canopy to root ratios that cause transplant stress. You will be amazed how much faster bare root trees grow than larger, potted, nursery bought trees. Two trees can be planted per Waterboxx and the weaker removed after one year. Be the first in your area to begin planting trees with the Groasis Waterboxx. The Waterboxx is available for purchase from Dew Harvest in the United States. We would love to hear your comments below - to leave one, please click on "Comments".
If you would like to learn how to grow plants without watering with the Waterboxx, the best resource is the book The Waterboxx Gardener: How to Mimic Nature, Stop Watering, and Start Enjoying Your Garden available here on Amazon.com.