trefle.io · Taken Oct 2, 2020 by barbara caroli (cc-by-sa)
Poaceae
Johnsongrass
Sorghum halepense
Also known as Sorghum halepense var. latifolium, Sorghum halepense var. muticum, Sorghum halepense var. majus, Milium halepense
Native Plants · Invasive Grass · Johnsongrass · Perennial Grass · Weed · Sorghum · Fast Growing · Ground Cover · Pasture
Johnsongrass is an extremely vigorous, fast-growing perennial grass that spreads aggressively via rhizomes and seeds, making it notoriously difficult to control. It thrives in full sun to partial shade and tolerates a wide range of soil conditions. Regular mowing or herbicide treatment is necessary to prevent it from overtaking garden beds and neighbouring vegetation.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water deeply to encourage deep root growth; tolerates brief dry spells once established · Every 7-10 days
- Maintenance
- High
- Soil
- loam
- Soil pH
- 5–7
- Temperature
- -30°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4a-10b
Form & growth
Mature size and habit
- Mature height
- 6 in – 3 ft
- Spread
- 3 ft
- Spacing
- 24 in apart
- Growth rate
- Fast
- Root depth
- Medium
- Flowers
- No
- Foliage
- Green · Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alabama, Albania, Algeria, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Aruba, Austria, Azores, Bahamas, Baleares, Bangladesh, Belgium, Belize, Benin, Bermuda, Bolivia
- Attracts
- Birds
Sources: trefle, usda
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