Trees and shrubs that have been planted sometime the last two years could use a couple drinks of water during the heat wave that we are entering, and during other hot/dry periods during June through September. Depending on the size of the tree, apply two to ten gallons per watering every 2-3 days until temperatures return to the low 80’s.
Recently planted trees, shrubs, perennials and annuals may need water every day or every other day. Observe your plantings for signs of wilting, and respond by watering these plants more frequently until the heat wave breaks. Some may want water every day, and others every second or third day. Avoid super saturating plants by allowing the hose to run. over watering can lead to root rot.
Perennials will usually do fine with 1 or 2 quarts of water per watering. For most shrubs, 2-4 quarters per watering should keep them happy without over watering. Trees will do well with 1 to 5 gallons of water per time depending on the size of the tree.