March Garden Notes
Seasonal jobs, kitchen garden notes, wildlife care and design ideas for your garden this month.
MONTHLY NOTES
2/19/20266 min read
March is a month of quiet momentum in the garden. The days are getting longer, buds are swelling, early bulbs are flowering, and there is a clear sense that the garden is beginning to wake after winter.
It can still be a changeable month. Cold winds, wet soil, frosts and sudden mild spells can all arrive within a few days of each other, so it is worth working with the weather rather than rushing too far ahead. March is often more about preparation than transformation.
This is a good month to tidy gently, plan carefully, start sowing, and look at the structure of the garden before spring growth begins to hide it.
Jobs to do this month
A few useful garden jobs for March:
Cut back perennials left standing over winter, removing old stems before new growth becomes too tangled.
Weed borders while weeds are small, especially annual weeds that are easy to remove now.
Mulch beds and borders after weeding, while the soil is moist and before plants grow too large.
Prune roses if this has not already been done, removing dead, damaged or crossing stems.
Feed roses, shrubs and perennials as growth begins, using a suitable slow-release or organic fertiliser.
Divide overcrowded perennials where needed, as long as the soil is workable and not waterlogged.
Plant hardy perennials, shrubs and trees while the soil is moist and temperatures are still cool.
Start mowing lawns lightly if grass is growing, keeping the blades high for the first few cuts.
Clean pots, trays and greenhouse staging before seed sowing becomes busier.
Protect emerging shoots from slugs, snails and late frosts where needed.
In the kitchen garden
March is an important month in the kitchen garden. It is the beginning of the main sowing season, but the soil may still be cold and wet, especially on heavier ground. Patience is useful. Seeds sown into poor conditions often struggle, while those sown a little later into warmer soil can quickly catch up.
The focus this month is preparation, early sowing and making sure growing spaces are ready for the season ahead.
Sow this month:
Broad beans
Peas
Lettuce and salad leaves
Spinach
Chard
Spring onions
Radishes
Beetroot
Early carrots under protection
Parsnips, if the soil is suitable
Leeks under cover
Tomatoes indoors
Chillies and peppers indoors, if not already sown
Hardy herbs such as parsley and coriander
Plant out this month:
Onion sets
Shallots
Garlic, if not already planted
First early potatoes towards the end of the month, depending on conditions
Bare-root fruit bushes and trees early in the month if still dormant
Rhubarb crowns
Strawberry plants
Harvest this month:
Purple sprouting broccoli
Spring cabbage
Leeks
Kale
Chard
Forced rhubarb
Winter salads
Hardy herbs such as parsley and chives
Watch for:
Slugs and snails around young seedlings
Pigeons damaging brassicas
Mice taking peas and beans
Cold, wet soil delaying germination
Late frosts damaging early blossom
Weeds beginning to grow quickly in mild spells
Make the most of the season:
March is a good time to prepare beds properly before they become full of crops. Remove weeds, add compost where needed, repair supports, organise netting, and plan where each crop will go.
If the soil is too wet to work, avoid treading on it. Working wet soil can damage its structure and make growing harder later in the year. Use the time instead to sow indoors, clean tools, sort seeds and plan successional sowing.
Wildlife note
March is an important month for early pollinators. Bumblebees, hoverflies and other insects may be active on mild days, so early flowers are valuable.
Spring bulbs, hellebores, primroses, pulmonaria, winter honeysuckle, flowering currant and fruit blossom can all provide useful nectar and pollen. If you are tidying borders, consider leaving some leaf litter, hollow stems and undisturbed corners for insects that are still sheltering.
Before cutting hedges or dense shrubs, check carefully for nesting birds. Wildlife is beginning to move into its breeding season, even if the weather still feels wintry.
Design focus: planning borders before spring growth takes over
March is one of the best months to look at the underlying structure of a garden. Before borders become full of leaves and flowers, it is much easier to see the bones of the space: the paths, shapes, views, evergreens, shrubs, trees, edges and empty areas.
This makes March a valuable month for planning. It is not always the most colourful time of year, but that can be useful. Without the distraction of summer flowers, you can see whether the garden has enough structure to carry it through the quieter months.
A garden that only looks good in late spring and summer can feel bare or uncertain for much of the year. A garden with good structure feels more settled, even before everything is in flower.
What to look for in March
Walk around the garden and look at the overall shape rather than individual plants.
Notice:
Whether the garden has enough evergreen structure
Whether paths, borders and lawn edges feel clear
Where there are gaps in winter and early spring
Whether shrubs have outgrown their space
Whether views from the house are attractive
Where climbers, trees or hedges could soften boundaries
Whether the garden has a clear sense of shape
Which areas feel bare, cluttered or disconnected
Where spring bulbs are working well
Which parts of the garden are difficult to maintain
This is a useful moment to take photographs. March photos often reveal gaps and structural issues that are hidden by summer growth.
Why structure matters
Structure gives a garden shape and continuity. It helps the space feel designed, even when herbaceous plants are dormant or only just emerging.
Structure can come from many things:
Trees
Shrubs
Evergreens
Hedges
Climbers
Topiary or clipped forms
Paths and edging
Fences, walls and gates
Pots and containers
Repeated plant shapes
Seedheads and grasses left standing through winter
Not every garden needs lots of evergreen shrubs or formal shapes. A relaxed, cottage-style garden still benefits from structure. It might come from roses, fruit trees, hazel obelisks, woven willow edging, a small tree, a repeated shrub, or generous groups of perennials that create strong shapes as they emerge.
The structure should suit the character of the garden.
Planning new planting
March is a good time to plan changes before the main planting season becomes busy. You can still plant many hardy shrubs and perennials, but it is also a good month to pause and think carefully before buying.
Before adding new plants, ask:
What conditions does this area have?
Is the soil heavy, dry, damp, free-draining or compacted?
How much sun does the area receive?
What already grows well here?
What is missing: height, colour, scent, texture, structure or wildlife value?
How much maintenance will this area realistically receive?
Will this plant still suit the space in three to five years?
The right plant in the right place will usually look better, live longer and need less intervention.
Filling gaps thoughtfully
Bare soil and gaps can be very noticeable in March. Some gaps are temporary and will soon fill as perennials return. Others show where the planting needs improving.
The temptation is often to fill every gap immediately, but it is worth understanding why the gap is there. It might be caused by shade, poor soil, overcrowding, drought, waterlogging, pests, or simply a plant that has reached the end of its life.
Useful plants for early-season structure and interest might include:
Hellebores for winter and early spring flowers
Pulmonaria for early pollinators and spotted foliage
Epimedium for shade and delicate spring flowers
Brunnera for shade, foliage and blue flowers
Euphorbia for structure and fresh spring colour
Evergreen ferns for shade and texture
Sarcococca for winter scent and evergreen structure
Skimmia for evergreen foliage and spring flowers
Viburnum tinus for evergreen structure and early flowers
Osmanthus for evergreen foliage and scent
Amelanchier for blossom, structure and autumn colour
Roses for summer flowers and a strong framework
The aim is not to make March look like summer. It is to give the garden enough interest and shape that it feels alive and cared for before the main flowering season begins.
Thinking about views
March is also a good month to look at the garden from inside the house. These are often the views you see most often, especially in colder months.
Look from:
The kitchen window
The back door
A favourite chair
The front path
A bedroom window
A seating area
The place where you first enter the garden
Ask whether each view has a clear focal point or a pleasing shape. It could be a tree, a planted pot, a bird bath, a bench, a group of shrubs, a rose arch, or simply a well-shaped border edge.
Small changes to key views can have a bigger impact than trying to change the whole garden at once.
A simple March design exercise
Choose one view of the garden and take a photograph. Then make a few notes:
What gives this view structure?
What looks bare or unresolved?
Is there enough evergreen interest?
Would a shrub, small tree, climber or group of pots improve the space?
Are the edges and shapes clear?
What will this area look like in June?
What will it look like next winter?
This exercise can help you plan changes that improve the garden for more than one season.
March is a planning month as much as a gardening month. By looking carefully before the garden fills up, you can make better decisions about what to plant, what to move, and what structure is needed to make the garden feel more balanced all year round.
Need help with your garden this season?
Tend & Flourish offers garden advice, planting plans and regular garden care to help gardens feel more beautiful, manageable and connected to the seasons.
Whether your borders need clearer structure, your planting needs refreshing, or your garden feels bare outside the summer months, March is a good time to plan thoughtful improvements for the year ahead.