How often to water pasque flower in California
In July in the Central Valley, established pasque flower in loam needs a deep watering about every 5 days: about 1.5 gallons each time for a plant 2 feet across, about 1.9 gallons a week. Pasque flower is a low perennial with finely cut, silky-haired leaves and cup-shaped, violet-purple flowers in spring, followed by fluffy, feathery seedheads. It forms a small clump about 8 inches tall and dislikes being moved once settled. It needs very well-drained soil and full sun, with steady moisture through hot summer weather.
How often to water pasque flower, 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 foot 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 inches down around a pasque flower clump in summer heat signals that it needs water
- Leaves browning and flattening in a hot, dry spell show the plant has run short of moisture
- A crown going soft and dark in soggy soil points to poor drainage, since it needs very well-drained ground
- Ragged, chewed flowers point to slugs rather than thirst
- Feathery seedheads after bloom are normal and ornamental, not a sign of decline
How to water it
- Water at the edge of the clump rather than over the silky leaves
- Moisten the top 6 to 8 inches of soil, then let the surface dry before watering again
- Plant in full sun in gritty, very well-drained soil, such as a rock garden or raised bed
- Top-dress around the crown with gravel so it stays dry while the roots below stay moist
- Leave established clumps in place and water around them, since they resent being moved
Through the seasons
A new pasque flower can be slow to establish, so keep its soil evenly moist through the first year. Established clumps flower in spring, carry silky seedheads into summer and need steady moisture in hot weather. The leaves die back for winter. Rain usually supplies the cool months on the north-central coast and in the Central Valley, where drainage matters more than extra water. On the north-central coast and in the Central Valley, pasque flower carries a moderate water rating from WUCOLS. The south coast and South Inland are marked not suited. WUCOLS has not evaluated it for the high desert or the low desert.
In pots
Pasque flower suits a deep pot or trough of gritty, free-draining mix in full sun. Check the mix an inch down every few days in summer and water when it dries. Let it drain fully, since soggy mix can rot the crown. Empty the saucer each time. A pot moved into afternoon shade during the hottest months holds moisture longer. In winter the plant dies back, so water only when the mix is nearly dry.
- A year
- 17.11 gal per sq ft
- Reference
- Sacramento climate table
- Counts
- Plant need, before sprinkler losses
Monthly water need by climate zone
Pasque Flower: 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 | – | – | – | – |
| Feb | 0.53 | 0.65 | – | – | – | – |
| Mar | 0.87 | 1.09 | – | – | – | – |
| Apr | 1.18 | 1.52 | – | – | – | – |
| May | 1.46 | 2.08 | – | – | – | – |
| Jun | 1.61 | 2.48 | – | – | – | – |
| Jul | 1.61 | 2.67 | – | – | – | – |
| Aug | 1.49 | 2.39 | – | – | – | – |
| Sep | 1.24 | 1.8 | – | – | – | – |
| Oct | 0.87 | 1.18 | – | – | – | – |
| Nov | 0.47 | 0.56 | – | – | – | – |
| Dec | 0.31 | 0.34 | – | – | – | – |
| Year | 12 | 17.11 | – | – | – | – |
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 pasque flower. Plants that drink alike can share one valve and one schedule.
DahliasDahlia spp.moderate water, Central Valley2.67 gal/sq ft in July
FernsNephrolepis cordifolia (SHADE IN DESERT)moderate water, Central Valley2.67 gal/sq ft in July
DayliliesHemerocallis spp. & cvs.moderate water, Central Valley2.67 gal/sq ft in July
BegoniasBegonia & ssp. & cvs. (shade in the desert)moderate water, Central Valley2.67 gal/sq ft in July
Calla LiliesZantedeschia aethiopica SHADE IN DESERTmoderate water, Central Valley2.67 gal/sq ft in July
SageSalvia officinalis and cvs.moderate water, Central Valley2.67 gal/sq ft in July
Bicolor MonkshoodAconitum cammarummoderate water, Central Valley2.67 gal/sq ft in July
Garden MonkshoodAconitum napellusmoderate water, Central Valley2.67 gal/sq ft in July
Carpet BugleAjuga reptans (shade)moderate water, Central Valley2.67 gal/sq ft in July
Snowdrop WindflowerAnemone sylvestrismoderate water, Central Valley2.67 gal/sq ft in July
Mountain SandwortArenaria montanamoderate water, Central Valley2.67 gal/sq ft in July
Swamp MilkweedAsclepias incarnatamoderate water, Central Valley2.67 gal/sq ft in July
Orange MilkweedAsclepias tuberosamoderate water, Central Valley2.67 gal/sq ft in July
Greater MasterwortAstrantia majormoderate water, Central Valley2.67 gal/sq ft in July
Hardy BegoniaBegonia grandismoderate water, Central Valley2.67 gal/sq ft in July
Wax BegoniaBegonia semperflorensmoderate water, Central Valley2.67 gal/sq ft in JulySimilar plants that need less water 16
Rated lower than pasque flower in the Central Valley. Worth a look for a new bed or a lawn replacement.
AgapanthusAgapanthus orientalislow water, Central Valley1.07 gal/sq ft in July
GeraniumsPelargonium x hortorum and 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
IrisesIris germanicalow water, Central Valley1.07 gal/sq ft in July
SucculentsEcheveria 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
YarrowAchillea millefolium (non-native hybrids)low water, Central Valley1.07 gal/sq ft in July
Mountain AlyssumAlyssum montanumlow water, Central Valley1.07 gal/sq ft in July
Silver SageSalvia argentealow water, Central Valley1.07 gal/sq ft in July
Purple MulleinVerbascum phoeniceumlow water, Central Valley1.07 gal/sq ft in July
Silvery YarrowAchillea clavennaelow water, Central Valley1.07 gal/sq ft in July
Fern Leaf YarrowAchillea filipendulinalow water, Central Valley1.07 gal/sq ft in July
California Native YarrowAchillea millefolium (CA native cultivars)low water, Central Valley1.07 gal/sq ft in July
Woolly YarrowAchillea tomentosalow water, Central Valley1.07 gal/sq ft in July
Perennial HollyhockAlcea rosea cvs.low water, Central Valley1.07 gal/sq ft in July
Mountain Lady's MantleAlchemilla alpinalow water, Central Valley1.07 gal/sq ft in JulyTurn this into minutes on your water days
Every city page has a calculator that takes pasque flower, 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 pasque flower need per day?
In July in the Central Valley, established pasque flower needs about 0.3 gallons a day for a plant 2 feet across and about 1.1 gallons a day for a plant 4 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 pasque flower change across California?
Yes. WUCOLS rates pasque flower separately for each of the six California climate zones: moderate water in the North-Central Coastal zone, moderate water in the Central Valley zone, not suited to this region 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.
Is pasque flower poisonous?
Yes. All fresh parts are toxic, and the sap can blister skin. Wear gloves when handling it, and keep it away from children and pets.
Why is pasque flower hard to establish?
It resents disturbance and can be slow to settle. Plant it young in very well-drained soil and avoid moving it later. Keep the soil lightly moist through its first summer.
Should I deadhead pasque flower?
The feathery seedheads that follow the flowers are as ornamental as the blooms, so you can leave them. Remove them if you do not want seedlings. No other pruning is needed.
Can pasque flower take summer heat?
It performs best in cooler, less humid weather. In hot summers it needs constant moisture, so check the soil often. A spot with afternoon shade helps in warm areas.
When does pasque flower bloom?
It blooms in spring, with violet-purple flowers held just above the leaves on short stalks. Silky seedheads follow into summer.
More plant watering guides
Sources
- WUCOLS IV plant water use classification for Pulsatilla vulgaris (Anemone pulsatilla), 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