University of Maryland Extension

Home and Garden Information Center

Base Name: 
hgic

Poor Seed Germination - Lawns

Back to Common Problems - Lawns Starting a new lawn or overseeding an existing lawn successfully is a process described in publication (PDF) HG 102 Lawn Establishment, Renovation, and Overseeding . When a newly seeded lawn fails to germinate or germination is uneven, a number of possible causes...

Oil or Gasolline - Lawns

Back to Common Problems - Lawns Black or dark spots or patches, which appear suddenly on the lawn, may be the result of oil or gasoline spills from a leaking lawn mower or other gasoline powered tools. Small gasoline leaks or spills volatilize quickly and no action is necessary. A severe oil leak...

White Crust on Soil - Houseplants

High soluble salts are caused by the excessive use of fertilizers, frequent applications of fertilizer, and the incorrect use of fertilizer concentrates. Symptoms : The typical symptoms are browning or dieback of the leaf tips and margins. Sometimes yellowing or stunting may occur. The root systems...

Pot Bound Houseplants

Plants that have been grown for a long period of time in the same pot with roots encircling the pot perimeter are often referred to as pot bound. Pot bound plants have tight masses of roots that often fill the pot and sometimes come out of the pot over the edge. Often when watering a pot bound...

Nutrient deficiency - Houseplants

Symptoms of nutrient deficiency include yellow leaves and poor growth. Excessive fertilizer results in the buildup of salts and excessive, leggy growth with few or no flowers on flowering plants. Do not fertilize plants that are infested with insects or spider mites until the infestation is...

Mineral and Fertilizer Salt Deposits - Houseplants

Mineral and fertilizer salt deposits usually appear as white crystallized coatings on plant leaves or as a white crust on the surface of the growing media or pot. Mineral salt deposits are caused by the use of hard water that has high concentrations of dissolved substances such as calcium carbonate...

Low Light and Light Requirements - Houseplants

Low light levels can result in few or no flowers and spindly growth. To remedy the situation increase light levels by relocating plants closer to a light source or add additional artificial light sources. Houseplants can be classified according to their light requirements: low, medium or high...

Excess Water - Houseplants

Problems with excess water can result from poorly drained soil or over watering. Excess water reduces oxygen in the soil, which damages fine roots and renders the plant unable to take up water. Plants exposed to excess moisture show the same symptoms as plants with root rots, crown rots (crown rot...

Excess Light Sunburn and Light Requirements - Houseplants

Excess Sunlight Some plants grow best in partial sun or shade. When shade-loving plants are exposed to full sun, leaf scorch or sunburn can occur. Strong sun and heat cause the breakdown of chlorophyll in the leaf. Damage appears as pale, bleached or faded areas. These areas eventually become brown...

Nutrient Deficiency - Lawns

Back to Common Problems - Lawns An all-over or mottled pale green to golden yellow color in established lawns may be the result of iron or nitrogen deficiency. Lawns with severe deficiencies may exhibit chlorosis, (yellow streaks form parallel to leaf veins). Long-term nutrient deficiencies result...

Pages

Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2018. Web Accessibility