Hairy Crabgrass
About Hairy Crabgrass
Crabgrass is a weedy summer annual that can spread quickly and form colonies. It prefers full sun to part sun in moist to dry clay loams. It has spread to nearly every state in the country. Use a pre-emergence herbicide in late winter or early spring to prevent germination of seed.
Taxonomy
Digitaria sanguinalis
Digitaria
Poaceae
Poales
Also known as
Hairy finger-grass, Large crabgrass, Crab finger grass and Purple crabgrass
How to care for Hairy Crabgrass
How often to water your Hairy Crabgrass
every 9
Hairy Crabgrass needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Water 0.5 cups every
9
Finding light for Hairy Crabgrass in your home
a window
Hairy Crabgrass love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Hairy Crabgrass does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Hairy Crabgrass in your home 🏡.
How to fertilize Hairy Crabgrass
Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Hairy Crabgrass after it doubles in size or once a year—whichever comes first.
Care Summary for Hairy Crabgrass
Hairy Crabgrass
Greg recommends:
Water
0.5 cups every 9 days
Placement
< 1ft from a window
Nutrients
Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.