What to Plant in March in the UK: A Beginner’s Guide
March is an exciting time for gardeners across the UK. The days are getting longer, the soil is slowly warming, and the garden begins to wake from winter. If you’ve been waiting to start growing plants, this is the perfect month to begin.
Many beginners look for what to plant in April, but March is ideal for starting certain vegetables, herbs, and flowers early, giving your plants a head start for spring.
Whether you have a large garden, a small backyard, or just a few pots on a balcony, there are plenty of easy crops you can grow successfully.
In this guide, you’ll learn exactly what to plant in March in the UK, key practical gardening tips, common mistakes to avoid, and the essential tools required to get started.
Step-by-Step Guide: Planting in March in the UK
If you’re new to gardening, follow these simple steps before planting.
1. Check Your Soil Condition
March weather in the UK can still be unpredictable. Before planting:
- Make sure the soil is not frozen.
- Avoid working with very wet soil.
- Loosen soil with a fork to improve drainage.
- Add compost to enrich nutrients.
Nutrient-rich soil is essential for strong plant growth.
2. Choose Hardy Crops
Since March is early spring, focus on hardy plants that tolerate cool temperatures.
Examples include:
- Leafy greens
- Root vegetables
- Early herbs
- Hardy annual flowers
Tender plants are usually better planted in April or May.
3. Decide Where to Plant
You can grow plants in several ways:
- Directly in garden beds
- Raised beds
- Containers or pots
- Greenhouses or cold frames
Container gardening is especially good for beginners.
4. Prepare the Planting Area
Before planting:
- Remove weeds
- Break up large soil clumps.
- Mix compost into the soil.
- Level the surface
Proper preparation, like removing weeds and adding compost, gives plants the best start. Remember, a well-prepared bed is key to healthy plant establishment.
5. Sow Seeds or Plant Seedlings
Depending on the plant, you can either:
- Sow seeds directly outside.
- Start seeds indoors
- Plant young seedlings
Seed packets usually include planting instructions for spacing and depth.
Vegetables to Plant in March in the UK
Many hardy vegetables can be planted in March.
1. Carrots
Carrots are easy and perfect for beginner gardeners.
Tips:
- Sow seeds directly in loose soil.
- Thin seedlings once they grow
- Keep soil moist
Carrots thrive in raised beds or deep containers.
2. Spinach
Spinach matures rapidly and prefers cool weather.r.
Benefits:
- Fast-growing
- Very nutritious
- Can be harvested multiple times
Plant seeds every few weeks for a continuous harvest.
3. Lettuce
Lettuce is one of the easiest crops to grow.
Beginner advice:
- Grow in containers or beds.
- Sow small batches every 2–3 weeks.
- Harvest outer leaves regularly.
You’ll enjoy crisp,y fresh salads all spring long.g.
4. Peas
Peas love the cool temperatures of early spring.
Growing tips:
- Plant seeds directly outdoors.
- Provide support, such as stakes or trellises.
- Water regularly
Peas are ideal for small gardens and vertical growing.
5. Radishes
Radishes are one of the fastest vegetables you can grow.
Harvest radishes in as little as 4–6 weeks.
Great for beginners for quick harvests.s.
Herbs to Plant in March
Fresh herbs add flavour to cooking and are easy to grow.
Parsley
Parsley grows well in cool weather.
- Sow indoors or outdoors.
- Keep soil moist
- Harvest leaves regularly
Chives
Chives are hardy and return every year.
They grow well in:
- Garden beds
- Containers
- Herb gardens
Coriander
Coriander prefers cooler weather, making March a good time to start growing it. By planting coriander little and often, you’ll enjoy a constant supply for cooking throughout spring.y.
Flowers to Plant in March in the UK
March is also a great month to start planting flowers that brighten your garden.
Sweet Peas
Sweet peas are popular in UK gardens.
They produce:
- Beautiful flowers
- Lovely fragrance
- Climbing plants are perfect for fences.
Start seeds indoors or in a greenhouse.
Marigolds
Marigolds are easy to grow and help deter pests.
Start seeds indoors and move them outside later.
Poppies
Poppies can be sown directly outdoors in March. Sow poppy seeds where you want them to flower for the best results and easier garden maintenance later on.r.
Practical Gardening Tips from Experience
Over the years, I’ve noticed that beginner gardeners succeed more when they follow a few simple principles.
Start Small. Begin with a manageable number of easy crops. Success with a small start builds your confidence over time.y.
Label Your Plants. Always label your plants. Clear labelling stops confusion later and helps track what is growing successfully in your garden.s.
Water consistently. Water young seedlings regularly, but avoid creating soggy soil. Consistency leads to healthy, robust growth.g.
Watch the Weather
A late frost can still occur in the UK in March.
If frost is expected:
- Cover plants with fleece.
- Move containers indoors
- Protect seedlings in a greenhouse.
Common Beginner Gardening Mistakes
Even experienced gardeners make mistakes, but beginners can avoid common problems.
Planting Too Early
Some plants should wait until April or May. Expose only hardy or frost-resistant varieties to the March cold. Delay planting tender types for their safety.r.
Overwatering Plants
Too much water can cause root rot.
Check the soil before watering.
Ignoring Sunlight
Most vegetables need 6–8 hours of sunlight daily.
Choose sunny spots in your garden.
Poor Soil Preparation
Skipping soil preparation leads to weaker plants. Always add compost before planting to boost soil fertility. This is the foundation for successful, healthy plant growth.g.
UK Seasonal Gardening Advice
Understanding the UK gardening seasons makes planting easier.
Early Spring (March)In early spring, stick to hardy crops. These handle unpredictable UK weather and help ensure beginner success from the start.s.
Mid Spring (April)
This is when many gardeners begin planting more crops outdoors.
Late Spring (May). After May, you can safely plant tender vegetables outdoors, knowing frost is less likely and your efforts will pay off.
If you’re researching what to plant in April, many of the plants started in March will already be growing strongly by then.
Essential Gardening Tools for March Planting
You don’t need many tools to start gardening.
Beginner gardeners should have:
Hand Trowel
Used for planting seedlings and digging small holes.
Garden Fork
Helps loosen and aerate soil.
Watering Can
Ideal for watering young plants gently.
Gardening Gloves
Protect your hands from dirt and thorns.
Seed Trays
Perfect for starting seeds indoors. Choosing the right basic tools from the beginning makes every gardening task easier and more enjoyable, especially for those new to growing plants.e.
Conclusion
March is a wonderful time to start gardening in the UK. As the weather warms, your garden comes alive, offering the perfect chance to grow fresh vegetables, herbs, and flowers.
If you’re new to gardening, start with simple crops like lettuce, radishes, peas, and spinach. These plants grow quickly and help build confidence as a beginner gardener. Gardening can be kept simple. Prepare your soil, use basic tools, and be patient—these are keys to observing steady progress and enjoying your garden’s growth.w.
By the time April arrives, your garden will already be well on its way to a productive growing season.
So grab some seeds, prepare your soil, and enjoy the rewarding experience of growing your own garden.
Frequently Asked Questions
What vegetables grow best in March in the UK?
Some of the best vegetables to plant in March include:
Carrots
Lettuce
Spinach
Radishes
Peas
These crops handle cooler temperatures well.
Can I start planting in March in the UK?
Yes. March is the start of the spring planting season. Many hardy vegetables, herbs, and flowers can be planted now.
Should I start seeds indoors in March?
Yes, especially for plants needing warmer conditions. Starting seeds indoors helps plants grow stronger before moving outdoors.
Is it too cold to plant in March?
Sometimes temperatures can still be low. Choose hardy plants and protect them if frost is expected.
What should I prepare before planting?
Before planting:
Remove weeds
Improve soil with compost.
Choose a sunny location.
Check the weather forecast.Thorough preparation—like weed removal and compost addition—greatly enhances planting success. This is a must for every beginner gardener.s.
