Life Span
Perennial
Perennial
Type
Grass
Herbaceous Perennial
Origin
Eastern Africa, Southern Africa
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Canada, Eastern Asia, India, Nepal, China, Japan, Korea
Types
Robusta blue, Robusta green, Curvula
-
Number of Varieties
201
0
40000
👆🏻
Habitat
Cultivated Beds
Cliffs, Moist woods, Riverbanks
USDA Hardiness Zone
7-135-9
0
99
👆🏻
AHS Heat Zone
12 - 10
9-5
Sunset Zone
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17
Habit
Clump-Forming
Upright/Erect
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
From Rhizomes, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Keep ground moist
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Cut back old stems to the ground
In late autumn, Remove damaged leaves, Remove dead leaves
Fertilizers
Requires high amount of nitrogen
All-Purpose Liquid Fertilizer
Pests and Diseases
-
Red blotch
Plant Tolerance
Drought
Drought
Uses
Aesthetic Uses
Borders, Showy Purposes
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Erosion control
Air purification
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
Leaves, Seeds
-
Other Uses
Used as a grain, Used to make baskets, brooms, hats
Decorative veneers, flooring, paneling, Showy Purposes
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Container, Edging, Groundcover, Mixed Border, Rock Garden / Wall
Wildflower