Because of the danger of human poisoning, pokeweed should be eradicated when discovered. This is especially true if the plants are in hedges, gardens, and other areas adjacent to a home where children may be attracted by clusters of berries. If only a few plants occur in an area, pull them up by the roots and destroy them by burning. If the area is large, use an herbicide like Roundup or Finale.
Nu mber 10/ Canada Thistle
Number 9/ Broadleaf plantain
Dandelion is a perennial that grows best in moist areas with full sun; however, it can survive some shade and dry conditions once established. It produces a strong taproot that is capable of penetrating the soil to a depth of 10 to 15 feet, but it is most commonly 6 to 18 inches deep. Buds grow from the uppermost area of the root, producing a crown that can regenerate "new" plants even though the plant is cut off at or below the soil surface. Sections of the root as short as 1 inch in length are also capable of producing new plants.
The least toxic method is hand pulling. This works especially well when the soil is wet. Most weeds reproduce primarily from seeds, and the seeds of some weeds can remain viable when buried in the soil for decades. So it’s essential to keep weeds from shedding seeds in the garden. Garden weeds that are neglected until they reach seed-bearing age can be lopped off near the soil line with pruning shears, a stout knife, or a string trimmer with a blade attachment. Cutting back perennial weeds again and again not only reduces reseeding, it also forces the plants to use up food reserves stored in their roots.
One of the most common weeds found throughout North America.
Jimsonweed is an annual herb which grows up to 5 feet tall. It has a pale green stem with spreading branches. Leaves are green or purplish in coloration. Flowers are white or purple with a 5-pointed corolla up to four inches long and set on short stalks in the axils of branches. Seeds are contained in a hard, spiny capsule, about 2 inches in diameter, which splits lengthwise into four parts when ripe.
An application of herbicide is recommended as soon this plant is discovered. Due to the toxic nature of this plant be on the lookout for the plants reemergence.
Bindweed can be controlled when tilled eight to 12 days after each emergence throughout the growing season. During control experiments in the Midwest 16 to 18 tillage operations over more than two years, at two- to three-week intervals were needed to eliminate established stands of bindweed. .
Alkaline soil – The opposite of acidic, weeds that are commonly found in more alkaline soils include:
Take, for instance, a lawn that is lush with clover. The reason for its presence is not to annoy or even mock you. Instead, it is merely assessing the quality of your soil. Typically, the presence of clover in your lawn indicates a low level of nitrogen in the soil. This can be remedied by applying a high nitrogen fertilizer on the lawn.
Are weeds a frequent uninvited guest around your landscape? Maybe you have an abundant colony of common weeds like crabgrass or dandelions thriving in the lawn. Perhaps you suffer from the unrelenting vines of morning glory or ivy slowly taking over the garden. Whatever the case, all of these seemingly bothersome weeds are actually telling you something about the health of your landscape.
Poor soil and low fertility – There are numerous weeds that are commonly found growing in poor soils. Some of the most common weeds that indicate low fertility include:
Identifying Weeds by Soil Type
By looking closely at the weeds in a garden and surrounding landscape, you can maintain the soil’s quality more effectively; thus, producing a healthier environment in which all plants will thrive.
Poorly drained soil – If the garden consists of wet, poorly drained soil, it’s highly probable to find the following weeds dwelling in the area:
Keeping weeds out of landscapes means knowing the best soil for weed plants. When you learn what common weeds grow where and the type of soil they prefer, maintenance in the lawn and garden can be greatly minimized.
Soil Types for Common Weeds in a Garden
Overly dry soil – Just as with any poor soil type, there are weeds that seem to favor dry areas of the landscape. If your site is quite dry, you may find the following weeds in a garden:
Heavy, clay soil – If your lawn or garden is hard, heavy or even compacted, you’re likely to find weeds such as:
Removal by Hand
Insert a gardening trowel directly next to the nut grass. Dig down as far as you can go. Nutsedge root systems can extend as deep down as 12 to 18 inches (30 to 46 cm) below the surface.
Non-organic Solution: If you are using a broadleafed herbicide, use one where the active ingredient is 2-4-D. The ideal time to use herbicides on Dandelions is in early fall when the leaves are transferring nutrients down to the roots. Herbicide applied in early fall will be absorbed by the leaves and passed on down to the roots.
Also known as Nut Grass, this wide-bladed bright green sedge grows at warp speed. Each grass blade has a thick mid-vein and a waxy coating. It has a shallow root system that produce many nut-like tubers which are underground food storage for the plant. Each tuber has up to seven viable buds and each one can grow and produce new plants. Each new plant also produces rhizomes that create new plants.
Black Medic also called Yellow Trefoil is an annual species so it only lives one year but it makes a lot of seeds that can remain viable for several years. It’s seeds germinate in the spring and are capable of establishing in drought-prone or disturbed soils. Black medic is a legume, meaning that it has the capabilities to fix its own nitrogen; thus, allowing it to out compete turf in nutrient-poor soils as well. These factors, in combination with its ability to tolerate low mowing heights, make black medic a common weed in lawns.