How often to water copperleaf in California
In July on the south coast, established copperleaf in loam needs a deep watering about every 11 days: about 8.8 gallons each time for a plant 4 feet across, about 5.6 gallons a week. Copperleaf is a fast-growing tropical evergreen shrub from Fiji and nearby South Pacific islands. Its big, heart-shaped leaves are mottled in green, copper, red, pink, purple, yellow or white. It needs consistently moist, well-drained soil, or it drops leaves. Leaf color is best in full sun, and in most of California it is grown in pots or as an annual.
How often to water copperleaf, 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 an inch down in the pot or bed means copperleaf needs water right away
- Leaves dropping suddenly points to soil that dried out
- Faded, dull leaf color points to too much shade, not water
- Sticky leaves or tiny white insects point to whiteflies or mealybugs
How to water it
- Keep the soil consistently moist but well drained
- Water at the base before the surface dries out
- Plant in full sun for the best color, or light shade
- Pinch stem tips to keep it bushy
- Take tip cuttings in fall to carry it over winter
Through the seasons
Water new plants often so the soil never dries out. Established plants still need consistent moisture through the warm months, or they drop leaves. It is tender, so in most areas it is grown as a summer annual or brought indoors before cold weather. WUCOLS rates copperleaf moderate water on the south coast. WUCOLS marks it as not suited to the north-central coast, the Central Valley or South Inland, and has not evaluated it for the high desert or the low desert.
In pots
Copperleaf is most often grown in pots and hanging baskets, where its colorful leaves shine on a patio. Use a well-drained, moisture-holding mix. Water when the surface starts to dry, until it drains through. In summer, check pots daily. Empty the saucer. Pinch tips to keep it full. In winter, bring it into bright light indoors and keep the mix lightly moist.
- A year
- no figure
- Reference
- Sacramento climate table
- Counts
- Plant need, before sprinkler losses
WUCOLS lists Copperleaf as not suited to this region for the Central Valley zone, so no monthly figure is computed here.
Monthly water need by climate zone
Copperleaf: gallons per square foot per month, by WUCOLS climate zone
| Month | N. Coast | C. Valley | S. Coast | S. Inland | Hi Desert | Lo Desert |
|---|---|---|---|---|---|---|
| Jan | – | – | 0.78 | – | – | – |
| Feb | – | – | 0.81 | – | – | – |
| Mar | – | – | 1.15 | – | – | – |
| Apr | – | – | 1.4 | – | – | – |
| May | – | – | 1.61 | – | – | – |
| Jun | – | – | 1.74 | – | – | – |
| Jul | – | – | 1.98 | – | – | – |
| Aug | – | – | 1.86 | – | – | – |
| Sep | – | – | 1.49 | – | – | – |
| Oct | – | – | 1.15 | – | – | – |
| Nov | – | – | 0.84 | – | – | – |
| Dec | – | – | 0.65 | – | – | – |
| Year | – | – | 15.5 | – | – | – |
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 suited to this region in the Central Valley, like copperleaf. Plants that drink alike can share one valve and one schedule.
Chenille PlantAcalypha hispidanot rated, Central Valleyno Central Valley rating
Yellow Bell BauhiniaBauhinia tomentosanot rated, Central Valleyno Central Valley rating
Magic FlowerCantua buxifolianot rated, Central Valleyno Central Valley rating
Clustered Fishtail PalmCaryota mitisnot rated, Central Valleyno Central Valley rating
Hawaiian TiCordyline fruticosa (Cordyline terminalis)not rated, Central Valleyno Central Valley rating
FilbertCorylus maximanot rated, Central Valleyno Central Valley rating
PoinsettiaEuphorbia pulcherrimanot rated, Central Valleyno Central Valley rating
Weeping Chinese BanyanFicus benjaminanot rated, Central Valleyno Central Valley rating
Rubber PlantFicus elasticanot rated, Central Valleyno Central Valley rating
Franklin TreeFranklinia alatamaha (Gordonia alatamaha)not rated, Central Valleyno Central Valley rating
Jungle GeraniumIxora coccineanot rated, Central Valleyno Central Valley rating
Orange JessamineMurraya paniculatanot rated, Central Valleyno Central Valley rating
Common GuavaPsidium guajavanot rated, Central Valleyno Central Valley rating
Organ Pipe CactusStenocereus thurberi (Lemaireocereus thurberi)not rated, Central Valleyno Central Valley rating
Giant Bird of ParadiseStrelitzia nicolai (shade in desert)not rated, Central Valleyno Central Valley rating
Marmalade BushStreptosolen jamesoniinot rated, Central Valleyno Central Valley ratingTurn this into minutes on your water days
Every city page has a calculator that takes copperleaf, 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 copperleaf need per day?
In July on the south coast, established copperleaf needs about 0.8 gallons a day for a plant 4 feet across and about 3.2 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 copperleaf change across California?
Yes. WUCOLS rates copperleaf separately for each of the six California climate zones: not suited to this region in the North-Central Coastal zone, not suited to this region in the Central Valley zone, moderate water in the South Coastal zone, not suited to this region 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.
Why is my copperleaf dropping leaves?
Leaf drop usually means the soil dried out. Keep it consistently moist but well drained. Check pots daily in summer.
Can copperleaf grow outdoors in California?
WUCOLS rates it only for the south coast. Elsewhere grow it as a summer annual or in pots brought inside. It needs warmth.
Does copperleaf need sun?
The best leaf color comes in full sun. It tolerates light shade. Shade dulls the colors.
How do I keep copperleaf over winter?
Bring it indoors to bright light and keep it moist, or take tip cuttings in fall. Cuttings root easily. Plant out after frost.
What pests bother copperleaf?
Whiteflies, mealybugs, spider mites and caterpillars can occur. Check under leaves. Steady moisture keeps it vigorous.
More plant watering guides
Sources
- WUCOLS IV plant water use classification for Acalypha wilkesiana, 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