As drought conditions continue, it is essential to monitor your trees, shrubs and plants to avoid losing them for good. As a general rule, most plants require a minimum of one inch of rain a week to remain healthy. This can be obtained by either rainfall or watering. Watering should be done in the early morning or early evening to avoid the hottest part of the day and evaporation. Adhering to Des Moines Water Works stage 1 water conservation guidelines, it is also requested that any watering be done every other day.
Trees, shrubs, and perennials should be watched for either curling leaves or flagging (yellowing of the leaves). A periodic, heavy watering is more beneficial than a light, daily spraying on these plants. A bucket of water with small holes in the bottom allows water to slowly release into the soil giving a more uniform watering. Using a two-inch thick layer of mulch around these plants will also help retain moisture levels in the soil and reduce water evaporation. Trees that have been in the ground for less than five years should have priority over older trees.
Vegetable, annual and container gardening dry out much faster than other plants and watering should be done in the morning or late evening. Vegetable crops will likely be smaller than normal due to the heat. They tend to use the energy from water and sunshine just to flower and stay alive and don’t have enough extra energy to produce the crop.
Most brown grass is considered dormant, not dead. Applying a fertilizer would not be recommended in these conditions. Fall aeration and over-seeding would be better money spent. Under DMWW stage 1 water conservation guidelines, it is requested that residents and businesses in the Des Moines metro area cease or reduce lawn irrigation. If you must irrigate (new sod), do so early morning or late evening, and every other day.