How often to water winter daphne in California
In July in the Central Valley, established winter daphne in loam needs a deep watering about every 20 days: about 8.8 gallons each time for a plant 4 feet across, about 3.0 gallons a week. Winter daphne is an evergreen shrub from China, grown for intensely fragrant, pinkish red flowers clustered at the stem tips in late winter. It wants semi-shade and fast-draining soil that never dries out completely. Too much water can stop it flowering and rot its roots, and even well-tended plants sometimes die without warning.
How often to water winter daphne, month by month
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.
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.
How to tell it needs water
- Soil dry 2 to 3 inches down under the mulch during the dry season means winter daphne is ready for a soak
- Leaves wilting in summer over dry soil show that the roots have dried too far
- Wilt and leaf burn in a sunny inland spot can come from summer sun, even filtered sun, rather than from dry soil
- Few flowers after a summer of frequent watering can point to excess water, which can prevent bloom
- A plant that wilts and collapses while the ground stays soggy can point to root or crown rot
How to water it
- Set winter daphne on a slight mound or slope in well-amended, fast-draining soil, or in a raised bed where the soil is heavy
- Water slowly at the root zone with drip or a hose, wetting the root ball without leaving the crown in wet soil
- Let the top couple of inches dry between soakings in summer, but never let the root ball dry out completely
- Keep a layer of mulch over the roots to hold moisture and reduce watering, with the mulch pulled back from the stems
- Widen the watered ring as the shrub fills out, since it can grow about twice as wide as it is tall
Through the seasons
A new winter daphne is slow to establish, so check its root ball through the first summer and keep it from drying out completely. Established plants need only infrequent summer irrigation, and excess water can cost the late winter bloom. The shrub is evergreen, and flowers open at the stem tips in late winter. Winter rain covers the cool months on the coast and in the Central Valley, so check that the bed drains after storms. On the north-central coast and in the Central Valley, WUCOLS rates winter daphne low water. The south coast and South Inland carry a moderate water rating. WUCOLS marks it as not suited to the high desert or the low desert.
In pots
Winter daphne can be grown in a container. Use a pot with open drainage holes and a coarse, fast-draining mix. In summer, feel the mix 1 to 2 inches down every few days and water once it is dry at that depth. Soak until water runs out the bottom, then empty the saucer so the roots get air. Keep the pot in shade through hot afternoons, since summer sun scorches the leaves. After winter storms, make sure the pot has drained, because waterlogged mix invites root rot.
- A year
- 6.84 gal per sq ft
- Reference
- Sacramento climate table
- Counts
- Plant need, before sprinkler losses
Monthly water need by climate zone
Winter Daphne: gallons per square foot per month, by WUCOLS climate zone
| Month | N. Coast | C. Valley | S. Coast | S. Inland | Hi Desert | Lo Desert |
|---|---|---|---|---|---|---|
| Jan | 0.15 | 0.16 | 0.78 | 0.78 | – | – |
| Feb | 0.21 | 0.26 | 0.81 | 0.87 | – | – |
| Mar | 0.35 | 0.43 | 1.15 | 1.3 | – | – |
| Apr | 0.47 | 0.61 | 1.4 | 1.61 | – | – |
| May | 0.58 | 0.83 | 1.61 | 1.95 | – | – |
| Jun | 0.64 | 0.99 | 1.74 | 2.29 | – | – |
| Jul | 0.64 | 1.07 | 1.98 | 2.51 | – | – |
| Aug | 0.6 | 0.95 | 1.86 | 2.33 | – | – |
| Sep | 0.5 | 0.72 | 1.49 | 1.86 | – | – |
| Oct | 0.35 | 0.47 | 1.15 | 1.33 | – | – |
| Nov | 0.19 | 0.22 | 0.84 | 0.9 | – | – |
| Dec | 0.12 | 0.14 | 0.65 | 0.68 | – | – |
| Year | 4.8 | 6.84 | 15.5 | 18.41 | – | – |
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 low water in the Central Valley, like winter daphne. Plants that drink alike can share one valve and one schedule.
LavenderLavandula spp. & cvs.low water, Central Valley1.07 gal/sq ft in July
RosemaryRosmarinus officinalislow water, Central Valley1.07 gal/sq ft in July
BougainvilleaBougainvillea & spp. & cvs.low water, Central Valley1.07 gal/sq ft in July
Olive TreesOlea europaea ssp. & cvs.low water, Central Valley1.07 gal/sq ft in July
Crape MyrtleLagerstroemia spp., hybrids & cvs.low water, Central Valley1.07 gal/sq ft in July
LantanaLantana camara ssp. & cvs.low water, Central Valley1.07 gal/sq ft in July
SalviaSalvia greggii ssp., cvs. & hybridslow water, Central Valley1.07 gal/sq ft in July
AloeAloe spp. & cvs.low water, Central Valley1.07 gal/sq ft in July
SucculentsEcheveria spp. & cvs.low water, Central Valley1.07 gal/sq ft in July
JunipersJuniperus spp. & cvs.low water, Central Valley1.07 gal/sq ft in July
Russian SagePerovskia spp. & cvs.low water, Central Valley1.07 gal/sq ft in July
SagebrushArtemisia spp. (shrubby)low water, Central Valley1.07 gal/sq ft in July
Wild PrivetLigustrum vulgarelow water, Central Valley1.07 gal/sq ft in July
CoralberrySymphoricarpos orbiculatus (SHADE)low water, Central Valley1.07 gal/sq ft in July
Sydney Golden WattleAcacia longifolialow water, Central Valley1.07 gal/sq ft in July
Blue Leaf WattleAcacia salignalow water, Central Valley1.07 gal/sq ft in JulyTurn this into minutes on your water days
Every city page has a calculator that takes winter daphne, 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 winter daphne in summer?
In July, established winter daphne in loam needs a deep watering about every 20 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 winter daphne need per day?
In July in the Central Valley, established winter daphne needs about 0.4 gallons a day for a plant 4 feet across and about 1.7 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 winter daphne change across California?
Yes. WUCOLS rates winter daphne separately for each of the six California climate zones: low water in the North-Central Coastal zone, low water in the Central Valley zone, moderate water in the South Coastal zone, moderate water in the South Inland zone, not suited to this region 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.
Why did my winter daphne die suddenly?
Sudden death is a known habit of winter daphne, even with careful planting and care. Plants can flourish for years and then die without warning. Soggy soil is the risk you can control, since excess water can cause root rot, so keep it high in fast-draining ground.
Is winter daphne poisonous?
Yes. All parts of the plant are poisonous, including the leaves, flowers, bark and the red fruits that sometimes follow the flowers. Handling it can also irritate skin, so wear gloves when you prune.
Can I move a winter daphne?
Avoid it if you can. Daphnes do not transplant well, are often slow to establish and are best left undisturbed once planted. Choose a permanent site with shade and sharp drainage at planting time.
How much sun can winter daphne take?
A few hours of morning sun encourages bloom, but hot summer sun is too much. In hot inland gardens, even filtered summer sun can cause wilt and leaf burn. Give it afternoon shade, and judge wilting by the soil as well as the light.
Why is my winter daphne not blooming?
Check your summer watering first, since excess water can prevent flowering. Keep irrigation infrequent through summer without letting the roots dry out completely. Some morning sun also encourages flowering, as long as the afternoons stay shaded.
When should I prune winter daphne?
Prune lightly right after the flowers fade, tipping back shoots to keep the plant from getting leggy. That is also the time to feed it. Heavy cutting is not needed.
More plant watering guides
Sources
- WUCOLS IV plant water use classification for Daphne odora and cvs., the University of California survey California agencies use for landscape plan reviewRead August 23, 2026 on wucols.ucdavis.edu
- Model Water Efficient Landscape Ordinance, adopted text and appendices, effective 2025-01-02 · monthly reference evapotranspiration per city, Appendix CRead August 23, 2026 on water.ca.gov/-/media/DWR-Website/Web-Pages/Programs/Water-Use-And-Efficiency/MWELO-Rulemaking/Final-MWELO-Text-and-Appendices_20250103.pdf
- UC Statewide IPM Program, irrigation scheduling using evapotranspirationRead September 30, 2026 on ipm.ucanr.edu/PMG/GARDEN/ENVIRON/evap.html
- Shaw and Pittenger, Landscape Irrigation System Evaluation and Management, UC Cooperative Extension, 2009Read September 30, 2026 on ucanr.edu/sites/default/files/2013-02/160836.pdf
- Pittenger, Water Management in Gardens and Landscapes, UC Riverside, 2017Read September 30, 2026 on ucanr.edu/sites/default/files/2017-03/258022.pdf