What to Do in the Garden in March

Monthly garden guide for March

July 15, 2025 | 10 min read
March garden tasks and tips

Hello fellow garden enthusiasts! I'm Dave Thompson, a professional gardener and hedge cutting contractor from Staffordshire. March is a pivotal month in the garden, marking the transition from winter to spring. It's a time to prepare your garden for the growing season and tackle some essential tasks.

Quick Answer

March is the perfect time to start sowing seeds indoors, prune your roses, and prepare your soil for planting. Keep an eye on frost warnings and be ready to protect tender plants.

Sowing Seeds Indoors

March is an excellent time to start sowing seeds indoors, especially for those of us in the Midlands where the weather can still be quite cold. Choose seeds that need a longer growing season such as tomatoes, peppers, and aubergines.

  • Use seed trays with drainage holes
  • Opt for a good quality seed compost
  • Keep trays in a warm place, ideally 18-21°C

Pruning Roses

As the weather begins to warm up, it's time to prune your roses. This encourages healthy growth and flowering. In Staffordshire, aim to complete this by mid-March.

When pruning, remove dead, diseased, or crossing branches and aim to create an open centre for good air circulation.

Preparing the Soil

March is ideal for preparing your soil for planting. Once the ground is workable, dig in plenty of organic matter like compost or well-rotted manure. This improves soil structure and fertility.

Task Timing Notes
Sow seeds indoors Early March Use propagators if possible
Prune roses By mid-March Use sharp, clean secateurs
Prepare soil Throughout March Incorporate organic matter

Watching for Frost

Even though March heralds spring, frosty nights are still a risk. Keep an eye on the weather forecast, and be prepared to protect any vulnerable plants.

  • Use cloches or fleece for tender plants
  • Water plants in the morning to reduce frost damage
  • Move pots to sheltered spots if possible

Frequently Asked Questions

When should I start sowing seeds outdoors?

In the Midlands, it's best to wait until late March or early April, depending on the weather conditions.

How can I tell if it's safe to plant out seedlings?

Wait until the risk of frost has passed and the soil has warmed up. A soil thermometer can be helpful.

Is it too late to prune my fruit trees?

Ideally, pruning should be done in late winter before new growth starts, but you can still lightly prune in early March if necessary.

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