Early Spring Weeds: Chickweed & Henbit
“There is an old adage “A weed is just a plant out of place,” but perhaps it’s more accurate to think of weeds as plants that are growing in exactly the right place – for them – to take advantage of particular soil conditions. Weeds may provide useful information to us as gardeners if we are able to identify them and understand what soil circumstances favor their growth.
Clues to soil pH, nutrient imbalances, moisture level, and texture are available through examination of the weeds dominating an area. While a soil test is the most accurate way to identify soil characteristics, with specific recommendations for improving soil tilth and using amendments, observing weeds is an excellent starting point in the soil management process.“¹
Understanding and Managing the Problem
Understanding the root cause of weeds is essential to managing them effectively. Weeds don’t just appear by chance; their presence often indicates specific soil conditions or maintenance practices that need attention.
It’s important to ask: “Why is this weed here?”
In New England, fall 2024 and fall 2025 were generally warmer than average, with some late-season drought. These conditions created favorable environments for winter annual weeds. A mild fall provides an extended window for weeds to germinate and establish before winter dormancy—especially in irrigated, shaded, or low-lying areas. As a result, many sites likely entered winter with well-rooted plants, increasing weed pressure in the spring.
By identifying the weeds present, you can better understand underlying issues and take targeted action.
Chickweed (Stellaria media)
Chickweed is a winter annual that germinates in late fall and overwinters, typically emerging in April. It thrives in areas with less dense turf.
- Prostrate growth habit with opposite leaves
- Oval-shaped leaves with pointed tips
- Small white flowers with five petals in early spring
Chickweed forms dense, mat-like growth and can quickly infest an area before turf fully emerges from dormancy. It thrives in moist, poorly drained, and compacted soils, particularly in shaded conditions.
It spreads rapidly and may act as a short-lived perennial. As temperatures rise, chickweed dies off; often leaving bare spots that invite new weeds like crabgrass.
Management:
- Seed slicing to disrupt shallow roots and introduce new turf
- Hand-pulling in small infestations
- Increase turf density through overseeding
- Mow frequently to prevent flowering and seed production
- Maintain higher mowing heights
- Avoid excess watering
Henbit (Lamium amplexicaule)
Henbit is another winter annual that germinates in fall and grows during warm winter periods. It can produce up to 2,000 seeds per plant, making it a prolific spreader.
- Prostrate or upright growth habit
- Hairy, deeply lobed leaves
- Four-sided stems (mint family)
- Pink to purple tubular flowers
Henbit prefers nutrient-rich soils but does not necessarily indicate compaction or excess moisture.
Management:
- Maintain dense turf with higher mowing heights
- Overseed in fall or early spring
- Hand-pull small infestations
- Clean equipment to prevent spread
PJC Organic ProHealthy Turf Boost + S3 applications in early spring and fall contain chelated iron, which supports turf green-up and photosynthetic activity. Fall applications help turf harden off before winter, while spring applications help turf compete more effectively against henbit.
Summary
Creating lush, healthy turf requires consistent attention to soil health and cultural practices.
- Maintain optimal soil pH through regular liming
- Use all-natural organic fertilizers to support soil biology
- Mow at 3–4 inches to shade out low-growing weeds
- Keep mower blades sharp to reduce turf stress
- Water deeply to promote strong root systems
- Use diverse turfgrass species for resilience
As noted, fall 2025 conditions were not ideal for new grass establishment. As a result, spring seed slicing may be necessary to fill in bare areas.
Unless managing athletic fields, seed slicing is preferred over core aeration in spring to avoid bringing weed seeds to the surface. By addressing soil conditions and following these best practices, you can effectively manage weeds while improving overall turf health and appearance.
For additional guidance, reach out to PJC. We’re here to help you achieve the best results for your clients.
Resources
1 UMASS Hort Notes 2026 Vol. 37:1 Weeds as Soil Indicators