Petasites japonicus ‘Giganteus’
Blooming Time
Exposure
This is an enormous, eye-catching, exotic ground cover. Flowering during late winter and early spring, it displays white to purplish, heavy stalked flowers. Its leaves look like gigantic kidneys, may reach 4 feet across, and lend a lush tropical character to the landscape. Maximum size obtained in moist rich soil with plenty of shade.
Details
Hardiness Zone:
Blossom Color:
White to Cream
Growth Habit:
Slow Spreading
Max Height:
6'
Texture:
Recommended Spacing:
We sell this plant in these containers:
Special Characteristics
Features
White to purplish heavy stalked flowers arise from the soil late winter/early spring and are followed by absolutely huge tropical looking kidney-bean shaped rich green foliage.
Landscape Value
Moderate to large scale ground cover, accent, specimen, companion--very unique foliage adds interesting feature to the landscape. Slow spreading; surround by edging if using as specimen.
Care
Watering:
Giant Butterbur requires a fair amount of supplemental watering and often requires watering on a regular basis during the growing season.
Fertilizing:
Giant Butterbur is a moderate feeder, benefiting from a couple of annual applications of slow release fertilizer. A spring application of a 3-1-2 ratio (such as a 15-5-10) can be applied at a rate of about 10 pounds per 1000 square feet, and during early fall, an application of a 2-1-2 ratio (such as a 10-5-10) can be applied to encourage root development and cold hardiness.
Pruning:
Giant Butterbur is a deciduous plant (nonevergreen) and does not require pruning. It is perfectly acceptable to allow the dropped leaves to decompose and nourish the soil.