What do I do in the garden in March?
March in New England feels like spring some days, but winter hasn’t really let go.
Snow piles are still hanging around, shaded spots are icy, and the ground is thawing on top while still frozen underneath. Those freeze-thaw swings are when soil is most vulnerable.
So, this isn’t the month to rush the garden. It’s the month to watch closely and step in at the right time.
✂️ Late Winter Pruning
March is still a good time for dormant pruning, but in Central Massachusetts we are approaching the end of the winter pruning window. Once trees begin pushing new growth, this window closes quickly.
Prune while plants are still dormant and before sap flow accelerates.
Continue pruning:
Fruit trees - Apple, pear and European plum
Fruit shrubs and vines
Shrubs that bloom on new wood
Approach pruning with intention:
Prioritize structure and airflow
Remove dead, diseased, or crossing branches
Open the canopy for better light penetration
Shape plants for long-term strength, not short-term appearance
Sanitize tools between plants when disease is present
Remove and dispose of diseased material
Hold off on pruning:
Peaches and cherries until slightly later to reduce risk of bacterial canker - splashing rain increased this risk
Spring-flowering shrubs that bloom on old wood
A simple rule helps here:
If it flowers before it has leaves, prune after it blooms.
🌱 Seed Starting Indoors
March is when indoor seed starting begins to ramp up.
Common crops to start now:
Peppers, eggplant, tomatoes
Broccoli, cabbage, cauliflower
Herbs like parsley
Onions, shallots, leeks
In Central Massachusetts, many gardeners use Memorial Day as the safe outdoor planting date for warm-season crops. That timing works well for tomatoes, peppers, and eggplant that were started indoors earlier in spring.
Cool season crops like broccoli, cabbage, and cauliflower can usually be transplanted outside several weeks earlier than Memorial Day!
Two common problems show up this time of year:
Starting seeds too early
Not providing enough light
Leggy seedlings are almost always a light problem. Grow lights and good airflow matter far more than simply starting earlier!
🧱 Protect the Soil During Freeze-Thaw
March can be the most vulnerable month for soil structure.
Heavy snowmelt and rain saturate the ground while subsurface frost can trap water. Walking across wet beds during this period easily compacts soil.
Protect your soil by:
Staying off garden beds until soil drains
Avoiding wheelbarrow traffic across thawing ground
Healthy soil structure now prevents drainage and root issues later in the season.
👀 Observe Water and Landscape Patterns
March is an excellent time to learn how your landscape’s contours and water flow.
As snow melts and rain arrives, you will see patterns that aren’t so clear in summer.
Pay attention to:
Standing water
Erosion
Flooded accessways
These observations are valuable design information. Early adjustments to drainage, paths, or planting zones are far easier now than once the growing season is underway!
🐝 Early Spring Cleanup (But Not Too Early)
It is tempting to cut everything back as soon as the snow melts, but a little patience helps the ecosystem in your garden.
Many beneficial insects overwinter inside hollow stems and leaf litter. Waiting until daytime temperatures consistently reach around 50°F allows those insects to emerge.
Earlier in the month you can safely remove:
Broken branches of woody plants
Diseased plant material
The rest can wait!
🌻 Ready for the Growing Season?
March is about timing. Good decisions now reduce labor, stress, and correction later.
Attend a workshop, reach out for guidance, or secure your place on our landscape stewardship schedule before spring accelerates.