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Seeds To Sow In March!

We have put together a list of all the seeds available at that you can start sowing this month. There are so many delicious, organic vegetables you can start growing and beautiful flowers to brighten up your garden! 

We have even included some helpful growing tips for you!


Grow your own Organic Turnips at home.  Perfect baked, mashed, or steamed, and can be used in the same way you would use a potato! They are also great in stews, soups and as an accompaniment with pork, beef and chicken. 

When to sow: March to August. 

When to harvest: June to November.

 Did you know you can even eat the turnip leaves, they are very popular in Italy!


Radishes are great grilled, roasted, pickled and raw. They are also great in salads, soups and more!  

When to sow: Outdoors March to August, or in a greenhouse or similar, January to March, and September to October. 

When to harvest: Can be ready in as little as 4 weeks!

 Fun fact: Radishes, onions and garlic were paid as ‘wages’ to the Ancient Egyptian labourers who built the pyramids.


Rocket is the perfect accompaniment to a variety of dishes, such as salads, chicken, pasta, and more!

When to sow: Outdoors in the Spring and Summer, or under protection and indoors in the Autumn and Winter!

When to harvest: 6-7 weeks after planting your seeds.

Top tip: Over watering your rocket plants can dilute the leaves flavour!


Grow your own fresh, fragrant Coriander at home.  Perfect for adding flavour to a variety of dishes, commonly used in Mexican, Spanish and Indian Cuisine. It can also be used in soups, sauces, curries, marinades and more! 

When to sow: Sow March to June outdoors, and inside all year round.  

When to harvest: 4-6 weeks after planting your seeds. 

Top tip: If you aren’t able to cook with the coriander right away, you can freeze the cuttings until you are ready to cook with them!


Grow your own fresh calabrese broccoli at home, a great accompaniment to so many dishes. Broccoli is known for its beneficial health effects, it is high in fibre, vitamin C, vitamin K, iron, potassium and more.  

When to sow: Start indoors in March. Direct sow from April to July.

When to harvest: Harvest June to December.

 Growing fact: Better heads are produced during cooler summers as hot weather can encourage plants to go to seed prematurely.


Leeks are part of the Allium family, along with onions and garlic. When cooked they have a delicate, mild onion flavour with a hint of sweetness. They make a great addition to so many recipes!

When to sow: March to May.

When to harvest: September to February.


This green salad bowl lettuce variety produces large non-hearting heads of tender, green leaves that are slow to bolt. It is ideal for garnishes and makes delicious salads.

When to sow: March to July.

When to harvest: May to September. 

Fun Fact: Harvest your lettuce leaves very early in the morning, and they will be fresher for longer.

Spring Onion

Spring onions have a very similar taste to onions but much milder. They are great cooked or raw and make a fabulous addition to a range of delicious meals. 

When to sow: March to September.

When to harvest: June to April. 

Did you know that Spring Onions are an excellent source of vitamin C and calcium. They are also a good source of dietary fibre and vitamins A and B5=6, thiamine, folate and mineral.

Classic Romantic Cornflower

Cornflowers are easy to grow and will bring some wonderful colour to your garden. 

Excellent cut flower variety. Sow some cornflower seeds every 2-3 weeks for a continuous, beautiful display.

 When to sow: March to May, and August to October

Plant Type: Hardy Annual

Ammi Majus

Ammi Majus is a beautiful, dainty white flower, reminiscent of lacework, which looks wonderful in any garden.

When to sow: March to June, and August to September

Plant Type: Hardy Annual.


Chrysanthemums are easy to grow and are excellent for Spring bedding. This variety is early to bloom and will produce large, bright white flowers with striking yellow centres. They are dwarf and uniform in their growing habit. 

 When to sow: Undercover March to April, plant out May onwards. 

Plant Type: Annual. 


Cosmos are easy to grow and can be used as cut flowers and will make beautiful displays in your home.  Sow some cosmos seeds every 2-3 weeks for a continuous, beautiful display. 

When to sow: March to May.

Plant Type: Half-hardy annuals.

Indoor Plant Varieties - Can be sown indoors all year round.

We have a very large range of beautiful house plant seeds. 

Indoor plants are perfect for the urban gardener, and for anyone who wants to bring some of the outside in. Not only do they make your home look great, but many indoor plant varieties are also known for their ability to purify the air in your home!

All herb varieties can be grown on a sunny windowsill all year round. 

In these last few weeks, before the weather changes it’s great to grow some herbs indoors to bring some nature inside and switch up your meals with fresh ingredients, we have plenty to choose from at Seed n Sow! 

We hope this blog has been helpful and given you some inspiration for what seeds you can start this month and given you some ideas of what you can get up to next weekend in the garden!

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