Xtremehorticulture

Summer Water Needs of Lantana, Honeysuckle and Oleander

Q. How much water does
oleander, lantana and honeysuckle need during summer months? 

 

Lantana’s are always a favorite with desert residents because of their low level of maintenance and reliability for color.

A. Whenever talking
irrigation, two important considerations should be made; how much water to apply and how often to apply it. How often refers
to which valve or station they are on. How much water refers to the minutes of
operation of that station AND the size and number of drip emitters around each
plant.

Oleander is famous for being “drought tolerant”. That has nothing to do with its water use. For its footprint in the landscape, it has very high water use and it’s needed in order for it to stay and look good. Otherwise, when not given enough water, even though it survives and considered drought tolerant, it can look pretty shabby.

            Deeper rooted plants like oleander should be watered less
often (but with more water) than shallower rooted plants like lantana and
honeysuckle. Ideally, oleander should be on a station (valve) that waters other
trees and large shrubs not desert adapted. The lantana and honeysuckle would be
fine on the same valve.
            Next is size. Larger plants should receive more water
spread over a larger area than smaller plants. Some oleanders get quite large
while others, petite are dwarf varieties, would do fine with a smaller amount.
            Larger oleanders should probably get somewhere around 15
gallons or so each time they are watered. Smaller, petite oleander probably
between five and 10 gallons. If using drip irrigation, the size of the drip
emitters used (gallons per hour) depends on the minutes allocated for that
station.
            Lantana needs one or 2 gallons every time it’s watered.
The honeysuckle, probably 3 to 4. If watered the same number of minutes, double
the number or size of the emitters used on the honeysuckle.

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