How Much Water Does a Daisy Need?

Soil and Moisture

• The right soil retains moisture without becoming soggy or waterlogged. A soil high in organic matter or humus works best for most daisy varieties. The organic matter absorbs moisture for the daisy roots to access as needed, but the soil also allows excess water to drain instead of collecting in the root zone of the plants. Amend poorer soils with rich garden loam or compost to add organic matter to the bed. Replenish the compost each spring before planting annual and biennial daisy varieties, because this helps the soil improve in quality.

Watering Frequency

• Consistent soil moisture leads to healthiest plant growth and flowering on your daisies. Newly planted seedlings in the garden bed benefit from a deep watering every four to five days. Supply enough watering to moisten the top 6 inches of soil. Once established and flowering well, the daisies tolerate minimal soil drying. Water once weekly, but don't allow more than the top inch of the soil to dry completely. Water more frequently during hot, dry weather if the plants are beginning to droop or wilt.

Irrigation Tips

• Mulch minimizes the amount of irrigation necessary in your daisy beds. Use a 2-inch layer of organic mulch, such as bark nuggets, over the entire bed. The mulch prevents the moisture from evaporating out of the soil too quickly. It also cools the soil, which slows evaporation rates. Avoid overhead watering that wets the daisy flowers and foliage, because wet leaves can lead to fungal problems in the flowerbed. Instead, supply water directly to the soil at the base of the plant so the foliage remains dry.

Potted Daisies

• Potted daises, such as Gerbera varieties, require consistent soil moisture, just as bedding varieties do. Pots dry out more quickly when kept outside than those grown indoors, but both can dry out faster than a garden bed because of the limited soil volume. Check soil moisture daily and water when the top inch begins to feel dry. Indoor plants require more watering in summer but tolerate mild soil drying in winter. Avoid wetting the foliage when you water, just as you would with garden-planted daisies.