WateringTimesWatering plan, $19
Pallenis maritima (Asteriscus maritimus) (Odontospermum) ssp. & cvs., WUCOLS IV

How often to water gold coin daisy in California

In July in the Central Valley, established gold coin daisy 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. Gold coin daisy is a low, mounding evergreen perennial from coastal parts of the Canary Islands and the Mediterranean, about a foot tall and 3 to 4 feet wide. Small, spoon-shaped green leaves set off bright golden-yellow daisies. The main bloom runs from spring into summer, with a few flowers most of the year. It loves sun, sandy soil and coastal gardens.

PerennialRated for 4 of 6 zones

How often to water gold coin daisy, month by month

Your city
Plant width
2 ft
Your soil

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.

Every month, on your water days. The personal plan prints this for gold coin daisy and the rest of your yard, on the days your water supplier allows.Get the plan for $19

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.

Which soil do you have?

Dig down a few inches, take a handful of moist soil and squeeze it.

  • Sandy: gritty, falls apart when you open your hand, will not form a ball.
  • Loam: forms a soft ball that crumbles when you poke it.
  • Clay: forms a firm, sticky ball and squeezes out into a ribbon between thumb and finger.

Still not sure? Pick loam. Most garden beds sit between sand and clay.

How to measure plant width

A shrub with its width marked from one side to the other and the circle under it shaded blue

Measure across the plant, from the tips of the leaves on one side to the tips on the other.

Water the whole area the plant covers, shown in blue. The gallons here cover that area.

A wider plant means more gallons each watering, not more waterings. While it is young, measure again each spring.

How to tell it needs water

  • Gold coin daisy wilting at midday while the soil is dry an inch or two down means it needs water
  • Stems rotting in heavy soil that stays wet point to poor drainage
  • A dense mound covered in flowers shows it has the water it needs
  • Fewer flowers in shade point to too little sun

How to water it

  • Water at the base when the top inch or two of soil dries
  • Plant in full sun in sandy or well-drained soil
  • Water less often on the south coast than in hotter inland valleys
  • Raise the bed if your soil is heavy
  • Space plants 3 to 4 feet apart to fit their spread

Through the seasons

Water new plants regularly until the mound spreads. On the south coast, established plants want infrequent to occasional water. Elsewhere they need a bit more, and they tolerate it if the soil drains very well. It stays evergreen and is hardy to about 15 to 20 degrees F. Winter rain usually covers the cool months on the coast. WUCOLS rates gold coin daisy moderate water on the north-central coast, in the Central Valley and in South Inland. The south coast carries a low water rating. WUCOLS marks it as not suited to the high desert or the low desert.

In pots

Gold coin daisy does great in containers and tolerates regular watering there, since the mix drains well. Use a sandy, well-drained mix. Water when the top inch dries, until it drains through. In summer heat, check every day or two. Keep the saucer empty. In cold climates it is grown as a spring to fall annual. In winter, water only when the mix dries.

1 Your climate zone six WUCOLS zones, each from its own reference city
2.67gal per sq ft in JulyModerate water use in the Central Valley zone
A year
17.11 gal per sq ft
Reference
Sacramento climate table
Counts
Plant need, before sprinkler losses
0.671.32.02.70.4JAN0.65FEB1.09MAR1.52APR2.08MAY2.48JUN2.67JUL2.39AUG1.8SEP1.18OCT0.56NOV0.34DEC0.671.32.02.70.4JFM1.52AMJ2.67JAS1.18OND
Gallons per square foot per month, Central Valley. Peak 2.67 in Jul, 17.11 a year.

Monthly water need by climate zone

Gold Coin Daisy: gallons per square foot per month, by WUCOLS climate zone

MonthN. CoastC. ValleyS. CoastS. InlandHi DesertLo Desert
Jan0.370.40.310.78––
Feb0.530.650.320.87––
Mar0.871.090.461.3––
Apr1.181.520.561.61––
May1.462.080.641.95––
Jun1.612.480.692.29––
Jul1.612.670.792.51––
Aug1.492.390.742.33––
Sep1.241.80.61.86––
Oct0.871.180.461.33––
Nov0.470.560.330.9––
Dec0.310.340.260.68––
Year1217.116.218.41––

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 moderate water in the Central Valley, like gold coin daisy. Plants that drink alike can share one valve and one schedule.

DahliasDahlia spp.moderate water, Central Valley2.67 gal/sq ft in JulyFernsNephrolepis cordifolia (SHADE IN DESERT)moderate water, Central Valley2.67 gal/sq ft in JulyDayliliesHemerocallis spp. & cvs.moderate water, Central Valley2.67 gal/sq ft in JulyBegoniasBegonia & ssp. & cvs. (shade in the desert)moderate water, Central Valley2.67 gal/sq ft in JulyCalla LiliesZantedeschia aethiopica SHADE IN DESERTmoderate water, Central Valley2.67 gal/sq ft in JulySageSalvia officinalis and cvs.moderate water, Central Valley2.67 gal/sq ft in JulyBicolor MonkshoodAconitum cammarummoderate water, Central Valley2.67 gal/sq ft in JulyGarden MonkshoodAconitum napellusmoderate water, Central Valley2.67 gal/sq ft in JulyCarpet BugleAjuga reptans (shade)moderate water, Central Valley2.67 gal/sq ft in JulySnowdrop WindflowerAnemone sylvestrismoderate water, Central Valley2.67 gal/sq ft in JulyMountain SandwortArenaria montanamoderate water, Central Valley2.67 gal/sq ft in JulySwamp MilkweedAsclepias incarnatamoderate water, Central Valley2.67 gal/sq ft in JulyOrange MilkweedAsclepias tuberosamoderate water, Central Valley2.67 gal/sq ft in JulyGreater MasterwortAstrantia majormoderate water, Central Valley2.67 gal/sq ft in JulyHardy BegoniaBegonia grandismoderate water, Central Valley2.67 gal/sq ft in JulyWax BegoniaBegonia semperflorensmoderate water, Central Valley2.67 gal/sq ft in July

Similar plants that need less water 16

Rated lower than gold coin daisy 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 JulyGeraniumsPelargonium x hortorum and cvs.low water, Central Valley1.07 gal/sq ft in JulySalviaSalvia greggii ssp., cvs. & hybridslow water, Central Valley1.07 gal/sq ft in JulyIrisesIris germanicalow water, Central Valley1.07 gal/sq ft in JulySucculentsEcheveria spp. & cvs.low water, Central Valley1.07 gal/sq ft in JulyRussian SagePerovskia spp. & cvs.low water, Central Valley1.07 gal/sq ft in JulyYarrowAchillea millefolium (non-native hybrids)low water, Central Valley1.07 gal/sq ft in JulyMountain AlyssumAlyssum montanumlow water, Central Valley1.07 gal/sq ft in JulySilver SageSalvia argentealow water, Central Valley1.07 gal/sq ft in JulyPurple MulleinVerbascum phoeniceumlow water, Central Valley1.07 gal/sq ft in JulySilvery YarrowAchillea clavennaelow water, Central Valley1.07 gal/sq ft in JulyFern Leaf YarrowAchillea filipendulinalow water, Central Valley1.07 gal/sq ft in JulyCalifornia Native YarrowAchillea millefolium (CA native cultivars)low water, Central Valley1.07 gal/sq ft in JulyWoolly YarrowAchillea tomentosalow water, Central Valley1.07 gal/sq ft in JulyPerennial HollyhockAlcea rosea cvs.low water, Central Valley1.07 gal/sq ft in JulyMountain Lady's MantleAlchemilla alpinalow water, Central Valley1.07 gal/sq ft in July
Minutes for your sprinklers

Turn this into minutes on your water days

Every city page has a calculator that takes gold coin daisy, 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 gold coin daisy in summer?

In July, established gold coin daisy in loam needs a deep watering about every 5 days in the Central Valley, about every 18 days on the south coast and about every 6 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 gold coin daisy need per day?

In July in the Central Valley, established gold coin daisy 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 gold coin daisy change across California?

Yes. WUCOLS rates gold coin daisy separately for each of the six California climate zones: moderate water in the North-Central Coastal zone, moderate water in the Central Valley zone, low 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.

What other names does gold coin daisy have?

It is sold as Asteriscus maritimus or Asteriscus 'Gold Coin'. Its current name is Pallenis maritima. It is also called sea aster or Mediterranean beach daisy.

Is gold coin daisy good near the beach?

Yes, it grows close to the sea in the wild. It performs especially well in sandy coastal soils. Give it full sun.

When does gold coin daisy bloom?

The main show runs from spring into summer. A few flowers appear most of the year. Flowers are bright golden yellow and about an inch and a half wide.

How cold can gold coin daisy take?

It takes cold down to roughly 15 to 20 degrees F. In colder climates it is grown as an annual. Hot deserts do not suit it.

How big does gold coin daisy get?

It forms a low mound that spreads a few feet across. Use it as a small-scale groundcover. It also spills nicely from pots.

More plant watering guides

Palm TreesSago PalmStar JasmineHoneysuckleFernsDayliliesBegoniasIvy

Sources