Question:What can I do about white spots on my Crape Myrtle?
Answer: Crape Myrtle  (Lagerstroemia indica) is susceptible to powdery mildew. To stop the infestation, spray the infected leaves with a fungicide. Crape Myrtle is happiest in full sun and in  a spot that has good air circulation. Trimming back some nearby shrubs might help the problem.

Question:I have a 3-year-old  hydrangea that bloomed the first year  but hasn't bloomed since. It is located on the north side of my garage  where hostas flourish. It gets some early morning sun and in general,  it appears healthy. What could be the cause of it's not blooming?
Answer: Some varieties of hydrangea have hardy leaf buds but tender flower buds which can be killed by extreme winter temperatures or late spring cold snaps. In a northern exposure, the wind chill factor makes the temperature colder than the thermometer indicates. Another cause of no buds could be insufficient light. Hostas can tolerate far more shade than hydrangeas. Hydrangeas set their buds in late summer and early fall when days are getting shorter and there is less morning sun. If your hydrangea was planted in  the spring and bloomed the first year, consider that the  buds were formed the previous summer in a more gentle climate than Northwest Arkansas

Question: Can daffodil bulbs be transplanted to a new location now during their dormant season?
Answer: Daffodil bulbs can be transplanted anytime after they bloom as long as the foliage is left in tack until it withers and falls off. The foliage of spring bulbs is long gone by now, late summer. It is okay to transplant your bulbs. The only problem will be in finding them. Dig them carefully to not destroy the fine roots. Replant them immediately so that they don't dry out.

Question: Do tomatoes left on the vine after turning red improve in flavor?
Answer: The advantage of home grown tomatoes is to pick them when they are ripe. However, there is a point of diminishing  returns. A tomato's sugar and acid content decrease if it is left on the vine after it reaches the red stage. To get the most flavorful tomatoes, pick them just as they begin to change from orange to red. Then keep them at room temperature, in normal light( no sunny windowsills) for four or five days until they finish ripening to full red. Never put tomatoes in the refrigerator, temperatures below 50F change the flavor. Tomatoes will keep at room temperature for at least a week.