Category: Weeds

Common Invasive Plants Every Master Gardener Should Know

  The question of invasive plants is an interesting one, in part because the list keeps growing.  Some of the plants on this list may surprise you because they are so commonly found in our local yards and landscapes.  A few plants have just been added to the list over the past year. While some, like stilt grass are noxious weeds, many of these ornamental plants are still available in the nursery trade.  Several are beloved by local butterflies and...

Reduce, Re-Use, Recycle: Coffee Grounds

  Nitrogen, Phosphorous, Potassium and More That pile of wet grounds left from your fresh pot of coffee contains nitrogen, phosphorous, potassium, magnesium, calcium, and iron. Does that list of ingredients sound familiar? You may recognize this nutrient list from the last bag of fertilizer you read. Brewed coffee grounds, the dried and ground remains of the coffee bean, which is a seed, can be repurposed to enrich compost and improve soils. Grounds may contain up to 10% nitrogen, intended...

Tales From the Help Desk: Chickweed

Q:  I usually apply a pre-emergent herbicide in spring to kill chickweed.  Is it OK if I go ahead and apply the pre-emergent now? A. No. The use of a pre-emergent herbicide in winter would be ineffective because the weather is too cold for seeds to germinate. We tend to associate pre-emergents with spring because that is when we apply them to take care of crabgrass and other summer broadleaf weeds. I know for my lawn, applying pre-emergent herbicide is...

What is a Weed?

A family of rabbits gathers each evening at dusk to nibble their way through the clover and creeping Charlie that populate our front ‘lawn.’  They prefer to nibble plants that we don’t cultivate and won’t miss.  A motley mix of volunteer species, interspersed with a few grasses, grow in the open space between the patio and hedge.  While we call it a ‘bee lawn,’ others might say our lawn is infested with weeds. What is a Weed? Any plant growing...

Noxious or Nice?

  The swiftest way to find yourself in a rollicking argument with someone you may otherwise count as a friend, is to disagree with them over whether a plant is useful in the garden, or is a noxious, invasive weed.  This drama can erupt among those of us passionate about our gardens and the plants we grow.  We all know just enough to know we’re right, but these arguments over plants can hinge on nuance and circumstance. Do you know...