WateringTimesWatering plan, $19
Taxus 'Meyeri', WUCOLS IV

How often to water Meyer's yew in California

In July on the north-central coast, established Meyer's yew in loam needs a deep watering about every 13 days: about 55 gallons each time under a 10 foot canopy, about 29 gallons a week. Meyer's yew is a named yew, an evergreen conifer with short, flat, dark green needles. Like all yews it takes heavy pruning well, so it suits hedges, screens and shaped shrubs. Female plants bear red, fleshy cups around each seed when a male is nearby. Every part of a yew is highly poisonous, and poor drainage leads to root rot.

TreeRated for 1 of 6 zones

How often to water Meyer's yew, month by month

Your city
Canopy width
10 ft
Your soil

Type your city above and the days between waterings and the gallons appear here, worked out from your city's climate table. Or read the figures by climate zone further down.

Every month, on your water days. The personal plan prints this for Meyer's yew and the rest of your yard, on the days your water supplier allows.Get the plan for $19

How this is worked out: established roots fill the top 1.5 feet of soil, and you water again when that soil has dried halfway. Loam soil holds about 1.5 inches of water per foot. Water the whole area under the branches, and skip a watering after a good soaking rain.

Which soil do you have?

Dig down a few inches, take a handful of moist soil and squeeze it.

  • Sandy: gritty, falls apart when you open your hand, will not form a ball.
  • Loam: forms a soft ball that crumbles when you poke it.
  • Clay: forms a firm, sticky ball and squeezes out into a ribbon between thumb and finger.

Still not sure? Pick loam. Most garden beds sit between sand and clay.

How to measure canopy width

A tree with its canopy width marked across the widest branches and the circle under it shaded blue

Measure across the branches, from the tips of the outer leaves on one side to the tips on the other. A tape works, or pace it out.

Water the whole circle under the branches, shown in blue. The gallons here cover that circle.

A wider canopy means more gallons each watering, not more waterings. While the tree is young, measure again each spring.

How to tell it needs water

  • Soil dry 3 inches down under the shrub in summer means Meyer's yew is ready for a soak
  • Needles browning on the sunny side of a young plant can follow dry soil and too much sun
  • Needles yellowing inside the shrub over soggy soil point to root rot
  • Dull, speckled needles can point to mites, not a water problem

How to water it

  • Lay drip line or a soaker hose around the base
  • Soak about a foot deep, then let the top few inches dry
  • Plant in sun to part shade in well-drained, slightly acid soil
  • Shelter it from strong winds
  • Prune each year to keep its shape and density

Through the seasons

Water a new plant regularly through its first summer. Established yews want moderate, deep watering in dry months and soil that drains well. Young plants can dry out in strong sun, so watch them closely in heat. It stays evergreen all year and takes regular pruning. WUCOLS gives Meyer's yew a moderate water rating on the north-central coast. The Central Valley, the south coast, South Inland, the high desert and the low desert have no WUCOLS evaluation for it.

In pots

Meyer's yew grows well in containers. Use a well-drained, slightly acid mix. Once the upper couple of inches feel dry, water until it flows from the holes. In summer, check every few days, and shade a young plant from hot afternoon sun. Never let it sit in water, since wet roots rot. Keep fallen arils away from pets. In winter, water only when the mix dries.

1 Your climate zone six WUCOLS zones, each from its own reference city
Not ratedWUCOLS does not rate Meyer's Yew for the Central Valley zone
A year
no figure
Reference
Sacramento climate table
Counts
Plant need, before sprinkler losses

WUCOLS lists Meyer's Yew as not evaluated for the Central Valley zone, so no monthly figure is computed here.

Monthly water need by climate zone

Meyer's Yew: gallons per square foot per month, by WUCOLS climate zone

MonthN. CoastC. ValleyS. CoastS. InlandHi DesertLo Desert
Jan0.37–––––
Feb0.53–––––
Mar0.87–––––
Apr1.18–––––
May1.46–––––
Jun1.61–––––
Jul1.61–––––
Aug1.49–––––
Sep1.24–––––
Oct0.87–––––
Nov0.47–––––
Dec0.31–––––
Year12–––––

How this is worked out: the WUCOLS water rating for each zone times that zone’s climate for the month. A dash means WUCOLS does not rate the plant there. The figures are what the plant uses, before sprinkler losses.

Plants with the same water needs 16

Rated not evaluated in the Central Valley, like Meyer's yew. Plants that drink alike can share one valve and one schedule.

Minutes for your sprinklers

Turn this into minutes on your water days

Every city page has a calculator that takes Meyer's yew, your sprinkler type and the month, and gives the minutes per water day for that supplier's schedule. Or put it in a zone of the personal watering plan and get all twelve months printed.

Questions people ask

How much water does Meyer's yew need per day?

In July on the north-central coast, established Meyer's yew needs about 4.1 gallons a day under a 10 foot canopy and about 16 gallons a day under a 20 foot canopy. Give it in deep waterings spread days apart rather than a little every day, so the whole root zone gets wet.

Does watering for Meyer's yew change across California?

Yes. WUCOLS rates Meyer's yew separately for each of the six California climate zones: moderate water in the North-Central Coastal zone, not evaluated in the Central Valley zone, not evaluated in the South Coastal zone, not evaluated in the South Inland zone, not evaluated in the High and Intermediate Desert zone, not evaluated in the Low Desert zone. The monthly table above shows how the same rating translates into different gallon amounts as reference evapotranspiration changes.

Is Meyer's yew poisonous?

Yes, yews have high severity poison characteristics. Keep children and pets from chewing needles or seeds. Wear gloves when pruning.

Can Meyer's yew grow in shade?

It grows in full sun to partial shade. Too much shade slows growth. Too much sun can dry out young plants.

Why is my yew turning yellow?

Yellowing over wet soil often means root rot from poor drainage. Improve drainage and water less. Check the roots.

Can I prune Meyer's yew hard?

Yes, yews withstand heavy pruning. Annual pruning keeps the shape and density. Water well after a hard cut.

Why are there red berries on my yew?

Female plants form red, fleshy arils around the seeds when a male is nearby. The seeds are poisonous. Clean them up where pets play.

More plant watering guides

Sources