Gadenin日本語Get the app
Ranunculus asiaticus
Growing calendar
Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.
Guides
- How to Soak, Pre-Sprout and Plant Ranunculus Corms Claws Down
- Ranunculus Care Through a Cool Season: Water, Feed and Support
- Getting More Ranunculus Flowers: Cut at the Marshmallow Stage
- Ranunculus Growing Calendar: Soak, Sprout, Plant, Cut, Lift
- Ranunculus Problems: Rotting Corms, Powdery Mildew and Aphids
- Ranunculus Dormancy: Lifting, Drying and Storing the Claws
Common problems
Start from what you can see on the plant.
Pests and diseases (10)
Problems recorded for this plant, most serious first.
Powdery Mildew
Disease
White patches appear scattered on the upper leaf surface at first, then the whole leaf is coated in a white powder. Leaves later yellow, brown and die back, and reduced photosynthesis cuts growth and yield.
Sclerotinia Rot
Disease
The crown, stem or head rots in a water-soaked way and is covered in white cottony mycelium. Black sclerotia later form inside and on the surface, and the plant wilts and dies.
Root Rot
Disease
Fine roots rot brown to blackish brown, growth stops and the lower leaves yellow. The plant wilts easily in the daytime and eventually dies outright.
Gray Mold
Disease
Water-soaked brown lesions form on flowers, fruit and leaves, densely covered by a fuzzy gray mold. Fruit rots and drops, and decay continues in storage after harvest.
Bacterial Spot
Disease
Small water-soaked spots appear on the leaves, later turning brown with yellowing around them. Fruit develops water-soaked or scabby spots from which rot spreads.
