Two Articles from the Oregon Department of Agriculture about Oregon spiders.
Nine experts from Oregon State University Extension Service bust some common gardening myths. Read this article to get some research-based answers to 10 common misconceptions.
Pour 2 tablespoons liquid dish soap into 1 gallon water. Stir the dish soap into the water and transfer the contents into a plastic spray bottle.
Spray the affected plant’s leaves on both sides with the soapy mixture. Pay attention to coat the underside of the leaves with the mixture, as this is where you’ll find the highest concentration of aphids.
Spray the soapy mixture directly onto any aphids you notice falling from the leaves. The aphids are small, and it’s necessary to shoot them with the soapy water to kill the unwanted pests.
Rinse away the soapy residue after one to two hours. Allowing the soap to remain on the leaves for longer than a few hours can cause damage and burning. Use a garden hose or spray bottle filled with plain water to remove the residue.
Reapply the mixture every few days, or as necessary, to keep the aphid infestation under control.
Tip: Add 1 teaspoon vegetable oil to the mixture to increase the mixture’s density and make it stickier, helping it attach to and kill the aphids more effectively.
Warning: Test the soapy mixture on a small leaf before a larger application. If the plant shows sign of wilting or damage, don’t use this mixture.
Reprinted from SFgate online: http://www.sfgate.com/homeandgarden
Plant Name: Helianthemum
Common name: Rock Rose
Plant type: Evergreen, or Semi-evergreen, Shrubby Perennial
Height: 6-12 inches
Spread: 1-3 feet
Bloom Time: May – June
Flower Color: Various – White, Yellow, Red, Pink, Scarlet, Orange.
Exposure: Full Sun
Soil Requirements: Well Drained Rocky to Sandy Soil.
Water Needs: Low
Attributes: Good in Alpine & Rock Gardens, Deer Resistant, Drought Tolerant, Evergreen Good accent plant with texture & form, Gray Foliage & Dark Green Foliage.
Uses: Attracts Butterflies, Rock gardens, Container, Ground Cover, Xeriscape Gardens.
USDA Zone: 5-8 (check cultivar)