<% tDate="October 23, 2004" %> KLRU: Central Texas Gardener > Question/Plant of the Week > <%=tDate%>
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Question of the week

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Q. Why do the leaves on my trees look scorched? What should I do?

A. It’s simply a bacteria that has especially affected red oaks and sycamores in the past few months. The trees will outgrow it and be fine with next spring’s new leaves.

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Plant of the week

Photo: Gregg's MistflowerGregg’s Mistflower (Conoclinium greggii formerly called Eupatorium greggii)

Blue flowers are the exception in our landscape color schemes. The lavender blue blooms of Gregg’s Mistflower appear from spring through fall and are a magnet for several species of butterflies.

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.

Producer’s note: My garden rarely receives irrigation, and this plant works great. In fact, almost too well—in a perennial bed, it tends to take over. The flowers and butterflies make its invasive attitude well worth it, but I restrict where I put it.

I’ve found a happy companion planting situation by using it in a bulb bed. It covers the bare earth when the spring bulbs are dormant. It doesn’t hurt the daylilies, and the fall bulbs march right through it. It’s a nice look to see the lavender flowers against the red oxbloods and lycoris.

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Planting tips of the week

Set out naturalizing bulbs any time the next few weeks. It isn’t necessary to add bone meal. A rule of thumb for planting depth is three times as deep as wide. However, bulbs will find the right level on their own, so don’t worry about hauling a ruler out to the garden!

Now’s the time to plant lettuce, spinach, arugala and other cold weather salad makings. You can also plant turnips and carrots. This is the time to sow larkspur and sweet pea seeds, and you can set out transplants of calendulas, stock, and snapdragons.

 


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