Q. How do you start and grow rhubarb? &emdash; Gerald Wicoff, Danville, Ill. A. Rhubarb can be planted in the spring as soon as the ground can be worked. Choose crowns of a known cultivar with at least two large buds. Valentine, Canada Red, McDonald and Ruby are recommended red cultivars. Victoria is a recommended green-stalked cultivar. Valentine tends to produce fewer unwanted seed stalks. Valentine and McDonald require less sugar in food preparation than many […]
Q: This spring I would like to plant some blueberry bushes. The soil in this area is mostly clay, with a heavy limestone content. I have dug several holes about 2 feet deep, 3 feet in diameter, and 5 feet apart. The soil from the holes has been mixed with a generous amount of decayed organic matter and replaced. I would like to add an amendment to the mixture to acidify it. However, I have […]
Q: I have several hills of rhubarb. For the past three years, the rhubarb has had skinny stalks despite fertilizer, etc. Knowing this probably means I need to divide and re-plant the roots, I need to know when is the best time to do this. Also, I have red seedless grapes that are young and have only been harvested for two years. The grapes are sweet, but extremely small. How does one produce larger fruit? […]
Q: I have hardy kiwi vines that have been planted for six or seven years. Last year they bloomed, but the blooms dropped off. This year they bloomed, and it looked as if little fruit set on. Then those fell off. What could the problem be? I was supposed to have both male and female plants. — Aldona Short, Valparaiso, Ind. A: Several cultural factors can contribute to premature fruit drop. Unseasonable spring frosts often […]
B. Rosie Lerner, Consumer Horticulture Extension Specialist Herb gardeners can snip fresh herbs throughout the winter by propagating their garden plants now. There are several approaches to overwintering plants. One easy method is to dig up a plant, or a portion of one, and pot it up. Plants such as chives, lemon balm, mint, burnet and sweet woodruff can be lifted and divided into sections to create more plants. Dividing is a fairly foolproof method […]
Q: Could you please tell me why my hollyhock’s leaves turn pale green around the bottom of the stalks, then yellow, then brown and drop off? The same thing happens on my geranium leaves, and the flowers die and wilt in the middle of the clusters. My rhododendron leaves turn yellow and curl together with spots on the leaves, and they drop off also. — Kay Nickless, Clay City, Ind. A: Yellowing leaves can indicate […]