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8606 W. McDowell Rd.
Phoenix, AZ 85037
Phone: (623) 936-1100
Mon – Sat:  7am-5pm
Sunday:  9am-4pm

Helpful Hints from Elgin Nursery & Tree Farm

WATERING SCHEDULE FOR NEWLY PLANTED PLANTS

Plant Establishment:  on average the root system of a shrub will be well established after one year, and a tree after three years.  New plants need to be watered more frequently.  The schedule below offers guidelines to help new plants get established.

Weeks 1 & 2 – Water every 1-2 days in summer, every 3-4 days fall through spring.

Weeks 3 & 4 – Water every 3-4 days in summer, every 6-7 days fall through spring.

Weeks 5 & 6 – Water every 4-6 days in summer, every 7-10 days fall through spring.

Weeks 7 & 8 – Water every 7 days in summer, every 10-14 days fall through spring.

After week 8 – Gradually extend the time between irrigations until plants are established.

Note:

After the eighth week, move the drip emitters to the outer edge of the root ball.

**High water use plants will require more frequent irrigations.**

To determine the watering frequency that is best for your landscape, simply take these variables – plant type and size, soil type, and plant establishment, into account. Through observation and periodic checks for underwatering and overwatering, you will get a feel for your plants’ water needs.

The following watering schedule includes guidelines for many types of established landscape plants.  Again, check periodically for plant stress and adjust irrigation schedules as needed.

LANDSCAPE WATERING GUIDELINES

Plant Type Spring
(Mar-May)
Summer
(May-Oct)
Fall
(Oct-Dec)
Winter
(Dec-Mar)
Watering
Depth
TREES
Desert Adapted
14-30
days
7-21
days
14-30
days
30-60
days
24-36 in.
TREES
High Water Use
7-12
days
7-10
days
7-12
days
14-30
days
24-36 in.
SHRUBS
Desert Adapted
14-30
days
7-21
days
14-30
days
30-45
days
18-24 in.
SHRUBS
High Water Use
7-10
days
5-7
days
7-10
days
10-14
days
18-24 in.
GROUND COVERS
Desert Adapted
14-30
days
7-21
days
14-30
days
21-45
days
8-12 in.
GROUND COVERS
High Water Use
7-10
days
2-5
days
7-10
days
10-14
days
8-12 in.
CACTI & SUCCULENTS 21-45
days
14-30
days
21-45
days
if needed 8-12 in.
ANNUALS 3-7
days
2-5
days
3-7
days
5-10
days
8-12 in.
WARM SEASON GRASS 4-14
days
3-6
days
6-21
days
15-30
days
6-10 in.
COOL SEASON GRASS 3-7
days
none 3-10
days
7-14
days
6-10 in.

These guidelines are for established plants (1 yr. for shrubs, 3 yrs. for trees.)  Less water is needed during cool or rainy weather.  Additional water is needed for new plantings or unusually hot, dry weather.  Water to the depth indicated and to the outer edge of the plant’s canopy.  Drip run times are typically 2 hours or more for each watering.