The Watering Guideline

Garden Guidelines

Watering

New Plant Watering Guidelines

We have provided adequate water supply to keep your plants growing and healthy while they have resided above ground in our nursery.  It is important that you provide adequate water supply to your newly planted trees, shrubs, and perennials so they are successful in adapting to their new in-ground environment.

These general watering guidelines are designed to maximize the success rate of your new plants adapting to their new environment.  The exact amount of water has to take into account site specific factors such as soil conditions, sun exposure, wind, ground slope, foliage deflection, root competition, and proper planting practices.

Key things to remember: 
  1.  Make sure the plant’s roots are saturated before you install the plant.
  2.  Follow proper planting technique by following our planting guidelines.
  3.  When watering, ensure water penetrates soils to the depth of the root ball.

By wetting the plant’s roots prior to back filling the new hole, you are already giving that plant a much better chance of survival.  All subsequent water applied will be more readily accepted into the rooting zone.  After proper installation, build a circular soil berm around the root mass to corral water and water according to the chart below:

Water Volume Chart

Plant size  Amount of water per application
#1 and #2 pot size1-2 gallons
#3-#5 pot size    2-3 gallons
#7-#10 pot size3-5 gallons
Large shrubs/small trees (3-8 ft.)5-8 gallons
Mid-size trees (<2-3” caliper,8-12 ft.)8-12 gallons
Large trees (> 3” caliper, 12 ft.+) 12 gallons or more

Depending on the size of your circle berm, you can apply water to the corralled area 2-3 times per watering in order to apply the required volume of water.

Water measurements are made by using a watering can or bucket.  You can apply directly with a garden hose if you know how many gallons per minute are being applied.  You can test this by filling a bucket or watering can and calculate the gallons per minute flowing through the hose at a known setting.

If it is not possible to build a circle berm, you can use drip irrigation or soaker hose watering technique.  You will want to ensure that the recommended gallons of water is penetrating deeply into the soil and making contact with the roots by knowing how much water is applied over time.  This is particularly important in sloped areas where water can tend to run off to the lower side and not get in contact with the roots.

Frequency: 

Newly installed shrubs and trees should be checked and watered every other day for the first two weekstaking into account any rain. This will ensure that the soil is soaked thoroughly. Once the soil is saturated, limit watering to once a week if less than one inch of rain falls during the week. Your plants need to be watered throughout their first full growing cycle in order to establish roots into new soil and put on top growth. A full growing cycle includes the fall and spring seasons. Late fall watering, until the ground is fully frozen, is essential for the survival of newly planted trees and shrubs.

Soil sampling: 

Specific factors such as soil conditions, sun exposure, wind, ground slope, foliage deflection, root competition, and proper planting practices will affect the amount of water retained in the soil.  After the initial 2 week watering-in phase, you should check the moisture content of the soil from time to time.   To do this, dig down 2 – 4” just outside the root mass of the plant and water only if the soil feels dry to the touch. Feeling the soil for moisture content is the BEST method for gauging dryness. Only sampling can tell you when the soil is adequately moist, too dry, or too wet.

Mulch: 

Maintaining a 2 – 3” layer of organic mulch greatly reduces water loss to evaporation. Mulch should be tapered to and not touching the plant base.

Ground Covers and Perennials: 

In order for these tender plants to become established and spread, they must be watered every other day for the first month, and then once a week thereafter for the next two months. If planted in spring or summer, watering may be needed on a daily basis. A rotary sprinkler works best for large areas. Overhead watering should be used only in the morning or late afternoon. Wet foliage in the middle of the day or late evening can promote fungal diseases.

Sod: 

After installing sod, soak the root area daily for the next week. After the first week, water every two to three days. If sod shows signs of drying or turning brown, it should be soaked immediately. If the edges of the sod show signs of drying or turning brown along driveways or walks, hand soaking may be required along those edges. Overwatering will inhibit rooting. Sod should root into the soil in two to three weeks.

Did You Know? Ironically, droopy leaves can indicate that a plant needs more water or that it is waterlogged.

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