Autumn Leaf Colors

This season’s autumn colors have been exceptional. Shortened day lengths, sunny and warm days, cool nights, and adequate soil moisture provide the perfect conditions to showcase autumn’s greens, golds, reds, oranges and coppers in our trees and shrubs. Fall leaf color is a dynamic process, influenced by the decline and production of pigments within leaves….

Yellow Needles on Pines

Holy cow!  Look at my pine tree – it has lots of yellow needles on it!  Is that a problem?  What’s wrong?  These are common questions/comments that we get at this time of year.  In terms of the question of “is that a problem?”, it depends on where the needles are and which type of…

The Benefits of Fallen Leaves

It’s too bad autumn’s fallen leaves are seen as a nuisance, something to be gotten rid of as soon as possible. In truth, they are a boon to landscapes, serving as mulches, benefiting soils, and boosting our compost piles. Not only are leaf piles fun to jump in and make for great leaf fights, by…

Ash Tree Bolete

We’ve been receiving multiple samples and questions about the Ash Tree Bolete.  We are proud to have Professor Emeritus Tom Weber from University of Nebraska – Omaha as an Extension Master Gardener share his insights with this particular fungi. The first organism on the list of ash tree associates, good or evil, that pops up…

Fall is For Planting

A term in the green industry – an oldie, but a goodie – is “Fall is For Planting”.  The term sort of begs the questions: Planting what? And why?  Good questions, because some things are more suited than others.  In short, the items for planting are: trees, shrubs, turf, perennials, some veggies and even transplanting…

So Emerald Ash Borer Has Been Found In My Area—Now What?

Last week’s finding of the emerald ash borer (EAB) west of Fremont has ash tree owners wondering what to do next.  There are several options but first it’s helpful to know if your ash tree lies within a 15 mile radius. What is the importance of knowing if your ash lies within this radius, you…

Iron Chlorosis

Pin oak and river birch are trees that can suffer from iron chlorosis, a condition of yellow leaves due to a lack of sufficient iron in the plant.  Iron is necessary for good plant health and soils in this area have sufficient iron in the soil.  The glitch comes in when the soil’s pH (the…

Leaf Scorch

Brown leaves on trees and shrubs can be indicators of leaf scorch.  Leaf scorch occurs during hot weather when the rate of water uptake by roots is exceeded by the rate of water loss from leaves.    Plants respond to rapid water loss by willingly letting some leaves die back so that water intake equals the…

Pruning Yews – Shearing or Thinning?

Ok, so it’s time to prune yews…how do you know?  Just look at the shrub/hedge.  At this time of year, you’ll see lots of lighter color shoots at the ends of the stems.  If you want to keep the size the same, (and most of us do), now is the time.  So, how to do…