WateringTimesWatering plan, $19
Abelia x grandiflora ssp. & cvs., WUCOLS IV

How often to water glossy abelia in California

In July in the Central Valley, established glossy abelia in loam needs a deep watering about every 8 days: about 8.8 gallons each time for a plant 4 feet across, about 7.6 gallons a week. Glossy abelia is a dense, rounded, multi-stemmed hybrid shrub with glossy green leaves that turn reddish purple in fall. Clusters of funnel-shaped white to pink flowers appear from late spring through fall, drawing bees, butterflies and hummingbirds. It flowers best in full sun and moist, well-drained soil. It is tough and easy, though not salt tolerant.

Ground coverShrubRated for 5 of 6 zones

How often to water glossy abelia, month by month

Your city
Plant width
4 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 glossy abelia 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 the plant covers, 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 plant width

A shrub with its width marked from one side to the other and the circle under it shaded blue

Measure across the plant, from the tips of the leaves on one side to the tips on the other.

Water the whole area the plant covers, shown in blue. The gallons here cover that area.

A wider plant means more gallons each watering, not more waterings. While it is young, measure again each spring.

How to tell it needs water

  • Glossy abelia shoots hanging limp by late afternoon, with soil dry to the second knuckle, call for a deep drink
  • Brown, crisp margins on leaves in salty ground mean salt injury rather than thirst
  • Sparse flowers in shade point to too little sun
  • Stems killed back by a hard freeze point to cold damage and need pruning in late winter

How to water it

  • Soak the soil under the shrub once it is dry a few inches deep
  • Plant in full sun or partial shade in moist, well-drained soil
  • Choose a sheltered spot to limit freeze damage
  • Prune in late winter or early spring, since flowers form on new wood
  • Mulch the root zone to hold moisture through summer

Through the seasons

Give a newly planted abelia steady soaks during its first warm season. Once rooted, it needs moderate water through the long bloom season from late spring through fall. It is evergreen to semi-evergreen in mild climates and may lose leaves in colder winters. Winter rain usually covers the cool months on the coast and in the Central Valley. Glossy abelia gets a moderate water rating from WUCOLS on the north-central coast, in the Central Valley, on the south coast, in South Inland and in the high desert. The low desert is the exception, since WUCOLS marks it as not suited to the low desert.

In pots

Compact glossy abelia cultivars do well in big tubs and planters. Fill the container with a loose, free-draining mix. Soak it once the upper two inches feel dry, and let the extra run out of the holes. During hot spells, feel the mix daily or every other day. Pour off any water left in the saucer. Shape it in late winter, before new growth. Through the cool months, add water only if the mix goes dry, and shelter the pot on frosty nights.

1 Your climate zone six WUCOLS zones, each from its own reference city
2.67gal per sq ft in JulyModerate water use in the Central Valley zone
A year
17.11 gal per sq ft
Reference
Sacramento climate table
Counts
Plant need, before sprinkler losses
0.761.52.33.00.4JAN0.65FEB1.09MAR1.52APR2.08MAY2.48JUN2.67JUL2.39AUG1.8SEP1.18OCT0.56NOV0.34DEC0.761.52.33.00.4JFM1.52AMJ2.67JAS1.18OND
Gallons per square foot per month, Central Valley. Peak 2.67 in Jul, 17.11 a year.

Monthly water need by climate zone

Glossy Abelia: gallons per square foot per month, by WUCOLS climate zone

MonthN. CoastC. ValleyS. CoastS. InlandHi DesertLo Desert
Jan0.370.40.780.780.74–
Feb0.530.650.810.870.93–
Mar0.871.091.151.31.46–
Apr1.181.521.41.611.89–
May1.462.081.611.952.39–
Jun1.612.481.742.292.85–
Jul1.612.671.982.513.04–
Aug1.492.391.862.332.79–
Sep1.241.81.491.862.14–
Oct0.871.181.151.331.46–
Nov0.470.560.840.90.93–
Dec0.310.340.650.680.65–
Year1217.1115.518.4121.27–

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 moderate water in the Central Valley, like glossy abelia. Plants that drink alike can share one valve and one schedule.

RosesRosa hybrids..bushmoderate water, Central Valley2.67 gal/sq ft in JulyAzaleasRhododendron spp. (CA native and non-native spp.)moderate water, Central Valley2.67 gal/sq ft in JulyCamelliasCamellia japonica (SHADE IN DESERT)moderate water, Central Valley2.67 gal/sq ft in JulyGardeniasGardenia spp. & cvs.moderate water, Central Valley2.67 gal/sq ft in JulyBird of ParadiseStrelitzia reginae (shade in desert)moderate water, Central Valley2.67 gal/sq ft in JulyHibiscusHibiscus rosa-sinensismoderate water, Central Valley2.67 gal/sq ft in JulySago PalmCycas revolutamoderate water, Central Valley2.67 gal/sq ft in JulyStar JasmineTrachelospermum jasminoides and cvs.moderate water, Central Valley2.67 gal/sq ft in JulyHoneysuckleLonicera japonicamoderate water, Central Valley2.67 gal/sq ft in JulyIvyHedera helixmoderate water, Central Valley2.67 gal/sq ft in JulyArborvitaeThuja occidentalis ssp. & cvs.moderate water, Central Valley2.67 gal/sq ft in JulyBambooBambusa spp.moderate water, Central Valley2.67 gal/sq ft in JulyLilacsSyringa hybrids (including Descanso hybrids)moderate water, Central Valley2.67 gal/sq ft in JulySpireaSpiraea spp. (CA native and non native spp.)moderate water, Central Valley2.67 gal/sq ft in JulyButterfly BushBuddleja davidii and hybridsmoderate water, Central Valley2.67 gal/sq ft in JulyStrawberriesFragaria spp. & cvs. (CA native and non-natives species)moderate water, Central Valley2.67 gal/sq ft in July

Similar plants that need less water 16

Rated lower than glossy abelia in the Central Valley. Worth a look for a new bed or a lawn replacement.

LavenderLavandula spp. & cvs.low water, Central Valley1.07 gal/sq ft in JulyRosemaryRosmarinus officinalislow water, Central Valley1.07 gal/sq ft in JulyBougainvilleaBougainvillea & spp. & cvs.low water, Central Valley1.07 gal/sq ft in JulyOlive TreesOlea europaea ssp. & cvs.low water, Central Valley1.07 gal/sq ft in JulyCrape MyrtleLagerstroemia spp., hybrids & cvs.low water, Central Valley1.07 gal/sq ft in JulyLantanaLantana camara ssp. & cvs.low water, Central Valley1.07 gal/sq ft in JulySalviaSalvia greggii ssp., cvs. & hybridslow water, Central Valley1.07 gal/sq ft in JulyAloeAloe spp. & cvs.low water, Central Valley1.07 gal/sq ft in JulySucculentsEcheveria spp. & cvs.low water, Central Valley1.07 gal/sq ft in JulyJunipersJuniperus spp. & cvs.low water, Central Valley1.07 gal/sq ft in JulyRussian SagePerovskia spp. & cvs.low water, Central Valley1.07 gal/sq ft in JulyYarrowAchillea millefolium (non-native hybrids)low water, Central Valley1.07 gal/sq ft in JulySagebrushArtemisia spp. (shrubby)low water, Central Valley1.07 gal/sq ft in JulyWild PrivetLigustrum vulgarelow water, Central Valley1.07 gal/sq ft in JulyCoralberrySymphoricarpos orbiculatus (SHADE)low water, Central Valley1.07 gal/sq ft in JulySydney Golden WattleAcacia longifolialow water, Central Valley1.07 gal/sq ft in July
Minutes for your sprinklers

Turn this into minutes on your water days

Every city page has a calculator that takes glossy abelia, 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 often should I water glossy abelia in summer?

In July, established glossy abelia in loam needs a deep watering about every 8 days in the Central Valley, about every 11 days on the south coast and about every 9 days in the South Inland zone. Sandy soil holds less water, so waterings come closer together. Clay stretches them. Check the soil before each watering and skip one after a soaking rain.

How much water does glossy abelia need per day?

In July in the Central Valley, established glossy abelia needs about 1.1 gallons a day for a plant 4 feet across and about 4.3 gallons a day for a plant 8 feet across. Give it in deep waterings spread days apart rather than a little every day, so the whole root zone gets wet.

Does watering for glossy abelia change across California?

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

When should I prune glossy abelia?

Prune in late winter or early spring. It flowers on new wood, so spring growth carries the blooms. Light shaping is usually enough.

Is glossy abelia deer resistant?

Yes, it resists deer. It is also erosion tolerant. That makes it useful on slopes.

How long does glossy abelia bloom?

Flowers appear from late spring through fall. Its bloom season is very long. Full sun gives the most flowers.

Does glossy abelia attract pollinators?

Yes, bees, butterflies and hummingbirds visit its flowers. Plant it near a patio to enjoy them. It works as a hedge or screen too.

Is glossy abelia evergreen?

In mild climates it is evergreen to semi-evergreen. In colder winters it may drop leaves or die back. The leaves turn reddish purple in fall.

More plant watering guides

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Sources