Common Disease Problems
Bacterial Leaf Spot: First signs are small translucent spots with a broad yellowish edge that slowly enlarge and become angular or irregularly circular with a reddish center. It thrives in cooler temperatures. The disease may also affect and disfigure flower heads.Burpee Recommends: Remove infected plants. Avoid overhead watering. Do not work around plants when they are wet.
Black Root Rot: This fungus attacks plant roots causing yellowing foliage and stunted plants. Scattered branches may die back. Portions of roots killed by the pathogen are brown and turn black. Burpee Recommends: Make sure the soil is acidic as the disease is less of a problem in soils with a pH of 5.5 or less. Remove and dispose of affected plants.
Root Knot Nematodes: Microscopic worm-like pests that cause swellings (galls) to form on roots. Plants may wilt or appear stunted. Burpee Recommends: Remove and discard infested plants. Consult your Cooperative Extension Service.
Common Pest and Cultural Problems
Aphids: Greenish, red, black or peach colored sucking insects can spread disease as they feed on the undersides of leaves. They leave a sticky residue on foliage that attracts ants. Burpee Recommends: Introduce or attract natural predators into your garden such as lady beetles and wasps who feed on aphids. You can also wash them off with a strong spray, or use an insecticidal soap.
Overwatering: Overwatering can cause roots to rot and die out in the middle of the plant. Burpee Recommends: Be sure to plant in a well-drained location and water as needed.
Spider Mites: These tiny spider-like pests are about the size of a grain of pepper. They may be red, black, brown or yellow. They suck on the plant juices removing chlorophyll and injecting toxins which cause white dots on the foliage. There is often webbing visible on the plant. They cause the foliage to turn yellow and become dry and stippled. They multiply quickly and thrive in dry conditions. Burpee Recommends: Spider mites may be controlled with a forceful spray every other day. Try hot pepper wax or insecticidal soap. Check with your Cooperative Extension Service for miticide recommendations.
Whitefly: These are small white flying insects that often rise up in a cloud when plants are disturbed or brushed against. Burpee Recommends: They are difficult to control without chemicals. Try hot pepper wax or insecticidal soap. Check with your Cooperative Extension Service for pesticide recommendations.
Can I grow lithodora in a container? Yes, you can grow it in containers.
Is lithodora deer resistant? Yes, in general it is deer resistant.
Is lithodora a good pollinator plant? Yes, it attracts butterflies.
Can you suggest companion plants? Yes, try heuchera, hakonechloa, hosta or fern.
Does lithodora self sow? Yes, if it is happy lithodora can self sow.