How often to water queen of the meadow in California
In July on the north-central coast, established queen of the meadow in loam needs a deep watering about every 6 days: about 1.5 gallons each time for a plant 2 feet across, about 1.8 gallons a week. Queen of the meadow is a tall perennial with creamy white flower plumes above dark, divided leaves, native to damp European meadows and stream banks. It wants soil that stays reliably moist and struggles where the ground dries out for long. A pond edge or low, naturally wet spot suits it better than an open dry border.
How often to water queen of the meadow, 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 an inch or two down beside the clump signals this moisture loving perennial needs water soon
- Scorched leaves after the ground dries are a reason to check moisture around the clump
- Check both the soil and the crown if a wilted clump stays limp into the evening
- Blackened, collapsing stems in saturated ground call for a crown inspection before any more watering
- Inspect moisture and growing conditions when a clump remains pale or stunted through summer
How to water it
- Water queen of the meadow at the base of the clump, soaking the root zone rather than wetting the plumes overhead
- Keep the top few inches of soil consistently damp through the growing season instead of letting it dry fully
- Choose a low spot, pond margin or heavily amended bed that holds moisture naturally
- Mulch around the crown to slow surface drying, keeping it clear of the emerging shoots
- Extend moisture checks as the rhizomes spread beyond the original clump
Through the seasons
Keep young queen of the meadow moist while its roots establish, and continue checking established clumps throughout dry weather. Summer flowers rise above the leaves, and the leafy stems die back for winter. Maturity does not make this a plant for dry soil. WUCOLS assigns high water on the north-central coast, where winter rainfall can help maintain a damp bed. South Inland is not suited. The Central Valley, south coast, high desert and low desert have not been evaluated, so the coastal rating should not be extended to those regions.
In pots
For an existing potted clump, use a container with room for the roots and a mix that holds moisture. Check an inch or two below the surface during California heat and water before the root zone dries out. Let surplus water drain through the holes, then empty the saucer rather than using standing water as a moisture gauge. A partly shaded patio suits its light needs. Continue checking for dampness in winter even after the leafy growth has died back.
- A year
- no figure
- Reference
- Sacramento climate table
- Counts
- Plant need, before sprinkler losses
WUCOLS lists Queen of the Meadow as not evaluated for the Central Valley zone, so no monthly figure is computed here.
Monthly water need by climate zone
Queen of the Meadow: gallons per square foot per month, by WUCOLS climate zone
| Month | N. Coast | C. Valley | S. Coast | S. Inland | Hi Desert | Lo Desert |
|---|---|---|---|---|---|---|
| Jan | 0.6 | – | – | – | – | – |
| Feb | 0.84 | – | – | – | – | – |
| Mar | 1.39 | – | – | – | – | – |
| Apr | 1.88 | – | – | – | – | – |
| May | 2.33 | – | – | – | – | – |
| Jun | 2.58 | – | – | – | – | – |
| Jul | 2.58 | – | – | – | – | – |
| Aug | 2.38 | – | – | – | – | – |
| Sep | 1.98 | – | – | – | – | – |
| Oct | 1.39 | – | – | – | – | – |
| Nov | 0.74 | – | – | – | – | – |
| Dec | 0.5 | – | – | – | – | – |
| Year | 19.2 | – | – | – | – | – |
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 evaluated in the Central Valley, like queen of the meadow. Plants that drink alike can share one valve and one schedule.
Lilyleaf LadybellsAdenophora liliifolianot rated, Central Valleyno Central Valley rating
ArnicaArnica montananot rated, Central Valleyno Central Valley rating
Frilly BergeniaBergenia ciliatanot rated, Central Valleyno Central Valley rating
Cabbage on a StickBrighamia insignisnot rated, Central Valleyno Central Valley rating
Basket PlantCallisia fragransnot rated, Central Valleyno Central Valley rating
Forest SedgeCarex sylvaticanot rated, Central Valleyno Central Valley rating
Umbrella DracaenaDianella ensifolianot rated, Central Valleyno Central Valley rating
Rusty FoxgloveDigitalis ferrugineanot rated, Central Valleyno Central Valley rating
Big-Flowered FoxgloveDigitalis grandifloranot rated, Central Valleyno Central Valley rating
Woolly FoxgloveDigitalis lanatanot rated, Central Valleyno Central Valley rating
Sunset FoxgloveDigitalis obscuranot rated, Central Valleyno Central Valley rating
Male FernDryopteris filix-masnot rated, Central Valleyno Central Valley rating
Alpine Sea HollyEryngium alpinumnot rated, Central Valleyno Central Valley rating
Purple SpurgeEuphorbia dulcisnot rated, Central Valleyno Central Valley rating
DropwortFilipendula vulgaris (Filipendula hexapetala)not rated, Central Valleyno Central Valley rating
GentianGentiana scabra procumbensnot rated, Central Valleyno Central Valley ratingTurn this into minutes on your water days
Every city page has a calculator that takes queen of the meadow, 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 queen of the meadow need per day?
In July on the north-central coast, established queen of the meadow needs about 0.3 gallons a day for a plant 2 feet across and about 1.0 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 queen of the meadow change across California?
Yes. WUCOLS rates queen of the meadow separately for each of the six California climate zones: high water in the North-Central Coastal zone, not evaluated in the Central Valley zone, not evaluated 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.
Can queen of the meadow grow beside a pond?
Yes, a pond margin or boggy edge suits its need for constant moisture well. Keep the crown out of permanently submerged water even in a wet spot. A regular garden bed works too if it never dries out for long.
Why are my queen of the meadow leaves browning at the edges?
Dry soil can scorch meadowsweet foliage. Check moisture beside the roots when the leaves brown, and consider a damper position if the bed repeatedly dries out. Partial shade is also suitable, provided the ground remains moist.
Does queen of the meadow spread aggressively?
It can spread strongly and self-seed freely, so give an existing clump room and watch its edges. Remove fading flower heads if unwanted seedlings are a concern. Divide established clumps in spring when managing their size.
Is queen of the meadow the same as meadowsweet?
Filipendula ulmaria is known as both meadowsweet and queen of the meadow. Use the botanical name when buying or comparing care advice, since common names can be ambiguous.
Why isn't my queen of the meadow blooming well?
It grows in sun or partial shade when the soil remains moist. If bloom is poor, check those conditions and the plant's overall health before adding fertilizer.
More plant watering guides
Sources
- WUCOLS IV plant water use classification for Filipendula ulmaria, 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