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Caltha

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Caltha
Photo: carol · CC BY-SA 3.0 · Wikimedia Commons

Fact sheet

every fact quoted from its source
Typeperennial

“Caltha, commonly known as marsh marigold, is a cheerful spring-blooming perennial” — How to Grow Caltha — LizPlants

Days to maturity2–3 years

“days may take 2-3 years to flowering” — How to Grow Caltha — LizPlants

Lightpart shade to full sun

“Sun: Part shade to full sun, with 3-6 hours of direct sunlight daily” — How to Grow Caltha — LizPlants

WaterKeep soil consistently moist to wet at all times

“Water: Keep soil consistently moist to wet at all times; does not tolerate dry conditions” — How to Grow Caltha — LizPlants

Soil pH5.75–7.25

“Soil pH: 6.5-7.5” — How to Grow Caltha — LizPlants

Hardiness zones2-7

“Thrives in zones 2-7” — How to Grow Caltha — LizPlants

Spacing10–14 in

“Spacing: 12-18 inches” — How to Grow Caltha — LizPlants

Propagationseed

“seeds sown on moist soil surface without covering” — How to Grow Caltha — LizPlants

Transplantmiddle of the summer

“transplant peat pots into the garden proper in the middle of the summer.” — Caltha Plant Growing & Care Guide for Gardeners

Edible partsleaves

“Traditional spring greens Culinary Young leaves of Caltha palustris have been traditionally foraged and consumed in Northern Europe, particularly Scandinavia and Russia, as an early spring vegetable. The leaves must be blanched first to remove any acrid taste before eating.” — How to Grow Caltha — LizPlants

Pestssnails, slugs

“While largely free from pests, snails and slugs are sometimes attracted to their leaves.” — Caltha Plant Growing & Care Guide for Gardeners

Companionsastilbe, hostas, primula, iris, ferns, trollius, hellebores, sedges, candelabra primrose

“Plant with: Astilbe, Hostas, Primula, Iris (Japanese and Siberian), Ferns, Trollius, Hellebores, Sedges, Candelabra primrose” — How to Grow Caltha — LizPlants

Keep away fromdry-loving plants, mediterranean herbs, plants requiring well-draining soil

“Avoid planting near: Dry-loving plants (sedums, lavender, santolina), Mediterranean herbs (rosemary, thyme), Plants requiring well-draining soil” — How to Grow Caltha — LizPlants

Who grows this

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