More than 500 native plants in San Diego County are held in a Native Seed Bank at the zoo. Those seeds are dried down to a ...

Scrub oak trees grow so slowly; I can understand why they weren’t planted much when until recently it meant growing them from seed. Now tree-sized specimens are available at the nursery, and a couple ...

If you have a majestic and stately oak tree (Quercus spp.) growing in your yard, you'll know that the leaves will naturally change color in the fall before they drop off your deciduous tree. This ...

A hybrid scrub oak that looks like a tall, overgrown shrub in a Salt Lake City historical park is a rare and ancient tree from a time when Utah and the Great Basin were warmer and wetter.

Stare at a big, bushy tree for a few minutes, and you’ll notice there’s a lot going on. Up in the leaves there’s a bustling community of squirrels, songbirds, beetles and butterflies. Hidden among the ...

An oak tree can produce leaves of different sizes from year to year, depending on what that specific tree has experienced in the preceding seasons.

Q: My oak trees have leaf curl, the smaller the tree the worse it is. I see no evidence on the back side. Was it the cold snap? It started just before the hard rain spell, so I don’t think it ...

If you live in the foothills, you probably have Gambel oak, aka scrub oak (Quercus gambelii), in your landscape. This native tree has some great attributes and some big management challenges. Good ...