Basil plant droop that appears suddenly on young plants is often caused by fusarium wilt, a fungal disease that causes stunted growth and droopy, wilted or yellow leaves. Application of insecticidal soap twice a week is quite effective in removal of these pests. Although these hardy perennials are easy to get along with and require a minimum of care, a few simple steps will ensure they survive winter cold unscathed. Deadhead the rest of the blooms since producing seed expends the plants energy. The first signs of trouble are decreased growth and leaves with a cupped appearance. When advanced, the flower spike droops and the leaves curl upwards. Please examine your plants for signs of disease. I had to re cut the stem of the one Delphinium that wouldn't take up water about four times and then I finally put it in warm water with extra preservative and it snapped out of it and took up water beautifully. The lower leaves turn yellow with the yellowing progressing upwards. Save A Dying Aurora Lavender Delphinium - Hi - I bought a gorgeous Lavender Delphinium earlier in the summer. Q. Delphinium Lost All Its Flowers. Usually, these spots are caused by cyclamen mites. If you notice that your flower’s leaves are wilting, use a sulfur-based fungicide. Delphinium is a stately plant with tall, spiky blooms that beautify the garden in a big way during the early summer months. Remove infected plants. A white cottony mass of mycelium may be growing around the crown or on the soil near the crown and distinguishes this crown rot from others. Your D. to the right in the last pic is Delphinium grandiflorum. Well, I have a update on my wilted Delphinium. I usually let one portion of the plant go to seed and scatter those. This species causes delphinium leaves to cup downwards. Stem canker begins as one or more small brown spots on the stems. Avoid sites known to be infested. Eventually, leaves may drop from the plant. Black leaf spots are caused by small mites called cyclamen mites, which devour parts of the leaves and stems of the delphinium plant. Yellowing of lower leaves followed by wilting and death of the rest of the plant are symptoms of this disease. Growing Delphinium Plants (Grow and Care Guide) Often called larkspur, this flower is easy to grow in zones 3 to 7. - Greetings I purchased a awesome purple flowering Delphinium and some of the leaves are brown and coming off and all… Q. Preparing Delphinium Plants for Winter The reason that your plants are wilting may be caused by one or more diseases. The lower leaves become wilted and badly infected plants are easily pulled up. Leaf Problems. Distorted, curly leaves are caused by aphids or plant lice. It may rebloom but this species is short lived and produces seed very quickly. Another disease that you need to watch for is black leaf spots. Fusarium Wilt. The following sites may help you to determine why your plants are wilting. I kept it in a vase in the house to see how it would do and it last over a week. The following sites list many diseases of delphinium and coral bell. I didn\'t transplant it soon enough and it…