<% tDate="September 24, 2005" %> KLRU: Central Texas Gardener > Question/Plant of the Week > <%=tDate%>
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Question of the week

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Q. When do I apply a weed pre-emergent?

A. This is an excellent time to address winter weeds, like henbit and chickweed, and many, many others. They start to germinate with the first fall rains and cooler weather. If you procrastinate, it will be too late.

What product to use? There are many of them. Read the label to make sure it's for your type of grass. Corn gluten is an organic solution, and it provides nitrogen, as well. You want to wash the product down into the soil where the seeds are so that as they start to germinate it prevents them from ever growing into a weed plant. The absolute key is to get it down now, before the seeds germinate. If you wait until you see them, it's too late.

What I prefer to do is grow a good dense healthy lawn and you'll grow yourself out of most weed problems. Soil management, proper amounts of fertilizer and water, leaving the clippings on the grass to re-feed the soil: These are your best weed pre-emergents.

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Plant of the week

Photo: Marjoram & OreganoGregg's mistflower
Conoclinium greggii (Eupatorium greggii)

Blue flowers are the exception in our landscape color schemes, so Gregg's mistflower is a refreshing addition. Its lavender blue flower clusters appear from summer through fall, and are a magnet for several species of butterflies. The Queen butterfly especially likes this plant, and they will flock to it! This Central Texas native forms a spreading groundcover that reaches a height of 12 to 24 inches and is virtually pest and disease free. It prefers a moderately moist soil and full sun to partial shade; herbs in cooler weathers.

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Planting tips of the week
  • Apply weed pre-emergents.
  • Plant fall garden vegetables.
  • Address brown patch. For more, see John Dromgoole's tips for preventing it.
  • Outdoor houseplants will soon be coming in. We need to gradually move those in. Some, like ficus, drop their leaves quickly when theyíre exposed to a change in light intensity. So, if you'll gradually move them from their bright outdoor location getting them ready for the move indoors, it can make a much better transition for them.

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