Often mistaken for the English dandelion, catsear weeds can quickly ruin the aesthetic of your lush green garden oasis, with the appearance of yellow flowers in the middle of summer. 
Catsear weeds are commonly mistaken for dandelions. The difference lies in the yellow blooms created by both plants – true dandelions will only produce individual flowers on relatively short stems (up to 25 cm), while catsear weeds can produce tall, slender flower stalks up to 80cm that may develop several small yellow flowers.
Spot spraying weeds with a selective post-emergent 
What are Perennial Weeds?
Perennial Weeds are longer lived plants that can survive winter or regrow from roots, rhizomes or tubers in spring after a period of dormancy. Many weeds that grow from seed ...
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Catsear weed is a perennial herb, most commonly found in cooler to temperate areas of Australia. Known by a variety of common names, including common catsear, flatweed, false dandelion, long-rooted catsear, and hawkweed, catsear weeds are often mistaken for dandelions.
Catsear weed tends to favour compacted soils, or lawns that have been mown too low. It is often found in drier areas and has good drought tolerance thanks to a deep taproot. It also tolerates a range of soil types, textures, and pH levels, but does not grow well in poorly drained soils. Catsear can often be found in pastures, cultivation, lawns, fallow paddocks, disturbed areas, roadsides, and waste places.
The name ‘cat’s ear’ comes from the dense hairs that cover the plant’s leaves. It flowers throughout the summer and can become quite a problem in thin, open areas. It reproduces by seed, and each plant can produce as many as 6000 seeds. Soil moisture and light are required for germination, and most seeds will germinate in autumn. Fortunately, seeds do not survive for long in the soil, and most will degrade within a year if conditions are not suitable for germination.
Catsear weeds can persist in your lawn for several years.
