How often to water Flower Carpet Red rose in California
In July in the Central Valley, established Flower Carpet Red rose 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. Flower Carpet Red is a red-flowered member of a group of low, compact shrub roses bred for groundcover use. Plants stay 2 to 4 feet tall and spread 3 to 4 feet, forming a bushy mound of glossy leaves. Like its group mates, it repeats bloom from spring into fall with no deadheading, and it needs only light pruning.
How often to water Flower Carpet Red rose, 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
- Dry soil 3 inches under the canes during summer bloom says Flower Carpet Red rose is due a drink
- Flower clusters thinning out in a hot spell can follow a dry root zone
- Leaves hanging limp in late afternoon point to thirst
- Spotted or rusty leaves on plants hit by sprinklers point to wet foliage, not dry soil
How to water it
- Run drip under the mound so leaves stay dry
- Water deeply, then wait for the upper soil to dry
- Give it full sun and fertile, slightly acid soil that drains
- Spread mulch between plants to slow drying
- Shear in late winter only if you want it shorter and denser
Through the seasons
Water new plants regularly through their first summer. Established roses need different amounts by region, so follow the rating for your zone, and always water at the soil rather than on the leaves. Bloom runs from spring into fall. WUCOLS rates Flower Carpet Red rose very low water on the south coast. On the north-central coast, in the Central Valley, in South Inland and in the high desert it carries a moderate water rating. WUCOLS has not evaluated it for the low desert.
In pots
Flower Carpet Red rose makes a bold pot or window box plant with nonstop color. Fill the container with a fertile mix that drains well. Water when the upper inch or two is dry, pouring at the soil line until water escapes below. In hot weather, a small pot may need water daily. Tip out any water left in the saucer. In winter, water only after the mix dries.
- A year
- 17.11 gal per sq ft
- Reference
- Sacramento climate table
- Counts
- Plant need, before sprinkler losses
Monthly water need by climate zone
Flower Carpet Red Rose: gallons per square foot per month, by WUCOLS climate zone
| Month | N. Coast | C. Valley | S. Coast | S. Inland | Hi Desert | Lo Desert |
|---|---|---|---|---|---|---|
| Jan | 0.37 | 0.4 | 0.08 | 0.78 | 0.74 | – |
| Feb | 0.53 | 0.65 | 0.08 | 0.87 | 0.93 | – |
| Mar | 0.87 | 1.09 | 0.11 | 1.3 | 1.46 | – |
| Apr | 1.18 | 1.52 | 0.14 | 1.61 | 1.89 | – |
| May | 1.46 | 2.08 | 0.16 | 1.95 | 2.39 | – |
| Jun | 1.61 | 2.48 | 0.17 | 2.29 | 2.85 | – |
| Jul | 1.61 | 2.67 | 0.2 | 2.51 | 3.04 | – |
| Aug | 1.49 | 2.39 | 0.19 | 2.33 | 2.79 | – |
| Sep | 1.24 | 1.8 | 0.15 | 1.86 | 2.14 | – |
| Oct | 0.87 | 1.18 | 0.11 | 1.33 | 1.46 | – |
| Nov | 0.47 | 0.56 | 0.08 | 0.9 | 0.93 | – |
| Dec | 0.31 | 0.34 | 0.07 | 0.68 | 0.65 | – |
| Year | 12 | 17.11 | 1.55 | 18.41 | 21.27 | – |
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 Flower Carpet Red rose. Plants that drink alike can share one valve and one schedule.
RosesRosa hybrids..bushmoderate water, Central Valley2.67 gal/sq ft in July
AzaleasRhododendron spp. (CA native and non-native spp.)moderate water, Central Valley2.67 gal/sq ft in July
CamelliasCamellia japonica (SHADE IN DESERT)moderate water, Central Valley2.67 gal/sq ft in July
GardeniasGardenia spp. & cvs.moderate water, Central Valley2.67 gal/sq ft in July
Bird of ParadiseStrelitzia reginae (shade in desert)moderate water, Central Valley2.67 gal/sq ft in July
HibiscusHibiscus rosa-sinensismoderate water, Central Valley2.67 gal/sq ft in July
Sago PalmCycas revolutamoderate water, Central Valley2.67 gal/sq ft in July
Star JasmineTrachelospermum jasminoides and cvs.moderate water, Central Valley2.67 gal/sq ft in July
ArborvitaeThuja occidentalis ssp. & cvs.moderate water, Central Valley2.67 gal/sq ft in July
BambooBambusa spp.moderate water, Central Valley2.67 gal/sq ft in July
LilacsSyringa hybrids (including Descanso hybrids)moderate water, Central Valley2.67 gal/sq ft in July
SpireaSpiraea spp. (CA native and non native spp.)moderate water, Central Valley2.67 gal/sq ft in July
Butterfly BushBuddleja davidii and hybridsmoderate water, Central Valley2.67 gal/sq ft in July
SageSalvia officinalis and cvs.moderate water, Central Valley2.67 gal/sq ft in July
Red BuckeyeAesculus paviamoderate water, Central Valley2.67 gal/sq ft in July
Western ServiceberryAmelanchier alnifoliamoderate water, Central Valley2.67 gal/sq ft in JulySimilar plants that need less water 16
Rated lower than Flower Carpet Red rose 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 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 Flower Carpet Red rose, 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 Flower Carpet Red rose in summer?
In July, established Flower Carpet Red rose in loam needs a deep watering about every 8 days in the Central Valley, about once a month or less 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 Flower Carpet Red rose need per day?
In July in the Central Valley, established Flower Carpet Red rose 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 Flower Carpet Red rose change across California?
Yes. WUCOLS rates Flower Carpet Red rose separately for each of the six California climate zones: moderate water in the North-Central Coastal zone, moderate water in the Central Valley zone, very low water in the South Coastal zone, moderate water in the South Inland zone, moderate water 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 does Flower Carpet Red have a very low rating on the south coast?
WUCOLS gives it a very low water rating there, lower than the related Flower Carpet roses. Its other rated zones carry a moderate rating. Follow the rating for your zone.
Does Flower Carpet Red rose need deadheading?
No, it keeps blooming from spring into fall without deadheading. Spent flowers drop on their own. Steady root-zone water keeps buds coming.
How do I prune Flower Carpet Red rose?
No pruning is needed beyond removing damaged or diseased canes. Cut it back in late winter if you want a shorter, bushier plant. Water after pruning.
Can Flower Carpet Red rose take shade?
It tolerates some shade but blooms less there. Full sun gives the best show. Shaded plants need less water.
What problems affect Flower Carpet Red rose?
Disease resistance is good, but rust, powdery mildew and black spot can appear. Avoid overhead watering. Deer and rabbits may browse it.
More plant watering guides
Sources
- WUCOLS IV plant water use classification for Rosa x 'Noare' PP11308, 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