Wildfire smoke
Persistent wildfire smoke is new for Maryland gardeners. Experts seem to agree that smoke and ash do not pose a health risk for garden produce. Smoke diffuses sunlight but will probably not significantly reduce the total amount of light for photosynthesis. We have not heard/seen any reports of gardeners picking up smoky flavors in harvested greens or other vegetables or fruits.
- Wash all produce prior to eating it raw or cooking with it
- Wear an N-95 quality mask when working outside on days when wildfire smoke worsens air quality
- Hose off plants if a noticeable soot layer develops from prolonged, intense smoke
Wildfire smoke has been shown to boost the levels of ozone and other air pollutants which can injure plants. Watermelon, squash, pumpkin, beans, and potato are especially vulnerable to high ozone levels (above 75 ppb).
Drought and damaging storms
Wildfire smoke interfered with weather patterns and likely contributed to cooler and drier weather across much of the state.
Mid-May through June:
- Lower average temperatures
- 75% of state in moderate drought on July 3rd
- Slow start for warm-season crops
July:
- High heat and humidity
- Spotty rainfall
- Insect and disease issues increasing
