Common name:Mexican Palo Verde, Jerusalem Thorn
Botanical name:Parkinsonia aculeata

The Mexican Palo Verde has prickly stems. This tree is very fast growing with sparse foliage and very long narrow leaves. Yellow flowers with orange red throats bloom sporadically. It is very messy, thorny, weedy and short-lived. This tree is usually found on limestone soils in areas with moisture but is strongly drought tolerant. It can withstand saline conditions. It can be cold or drought deciduous. It is beautiful in form being light and airy looking, with green bark.

Common name:Brittlebush, Incienso
Botanical name:Encelia farinosa

This deciduous mounding shrub typically has gray leaves that can reach 3' tall and wide. However, the leaves will turn white in drought conditions. Bright yellow 1" wide daisies appear in spring and summer. There is rapid growth following rain but this shrub is short-lived. Individual plants will reseed to repopulate. It does well in hot areas but cannot tolerate clay soils due to root rot. It will become overgrown and fragile if overwatered. It will suffer frost damage at 25 degrees F.