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National Plant a Flower Day: New Flower Seeds, Houseplants & Flower Growing Guides

We know that you like to plant flowers for more than one day of the year, but this Friday, on March 12th, is in fact National Plant a Flower Day. And what is a better way to see spring in than planting a new flower?

This time of year is not only the perfect way to celebrate the planting of flowers and welcoming the season of Spring but to appreciate the enormity of over 400,000 flowering species in the world! So, we can’t deny there isn’t something for everyone and every flower graces natural beauty in more ways than one.

We encourage you to always and continue to sow seeds and plant flowers, and over the years flowers have been used for all kinds of purposes. From crafts, medicine, food, beauty products, dyes and so much more. Flowers mainly play a pivotal role in our environment and wildlife too. They help our pollinating insects and bumblebees to survive by providing delicious nectar, which pollinates the plant as they feed. A crucial part of human food production.

But let’s talk about what flowers can do for you. The best way to celebrate Plant a Flower Day is to sow or plant a flower (or several ), and Suttons Flower Plants come in 5 easy sizes.

You can view our handy plant size guide for more information on each, but we also know these plants as Bedding Plants, Perennials, Annuals, Bulbs and more. Further, into the blog, we will discuss growing guides on each, as we understand you might have flower plants ready to plant out this month and just need some guidance.

We have too many flowers plant varieties to fit on the blog, but you can browse our wide selection on our website!

So, as you can see, flowers come in all shapes and forms, and we can’t forget about houseplants! We have plenty of them too but we can’t forget the most traditional way to grow flowers, from seed. Planting a flower doesn’t have to mean buying a flowering plant this Friday, so why not check out some of our brand new and longstanding seed varieties for you to try this spring!

Brand New Flower Seeds for 2021

Get ready to grow something a little different this month! We’ve introduced a selection of fabulous new flower seed varieties this year. Our experts have been hard at work finding flowers with striking scents, dazzling colours and a ‘wow’ factor that will help keep your garden one step ahead.

Perhaps you prefer to stick with more longstanding and traditional varieties of flower seeds, so click here to view flower seeds to sow this month.

For more information on how to sow your seeds, read our Success With Seeds Blog. For all the information you need on sowing indoors and out!

Flowers for Wildlife & Pollinators

Do you want to celebrate National Grow a Flower Day by growing a flower that is not only for you but your wildlife too? Our Pollinators and Predators collection includes seeds for bees, butterflies and other beneficial insects. Planting species that encourage pollinators will help build a tiny gardening team to do your pest control and pollination for you and support native wildlife by providing habitats and food.

You’ll find seeds for bees and butterflies, bumblebees and honey bees, ladybirds, hoverflies and lacewings. They all help to do their bit for your garden. Whether you’re keen to support bees or protect your veg and flowers from pests, our seeds for bees and butterflies range has a variety that’s perfect.

Grow a Houseplant and Become an Indoor Gardener

Is your outdoor space limited for growing flowers? Then opt to become n indoor gardener instead. It’s just as rewarding and you get to enjoy the process and flowering outcome indoors too! From dazzling orchids to large-foliage centerpieces, indoor garden and house plants can transform any living space into something special. Our range has been selected to provide you with inspirational indoor growing plants. No matter the size or character of your space.

Flower Growing Guides

Whether you have your flower plant ready to plant for National Plant a Flower Day, or you just want some general guidance on planting your flowers out when your seeds are ready, here are some tips and links to our best flower growing guides.

General Plant Size Guide

To hit the ground running, let’s talk about the general plant size guide.

On delivery of your plants do this straight away:

  • Carefully unpack your plants and check that the compost is moist.
  • Should any of the compost be dry, water carefully using a small watering can, and allow to drain.
  • Stand in a light, warm place, and then follow the growing on instructions in this leaflet as soon as you can – provided they are kept moist, they can usually be left for up to 3 days.


  • To reduce the need for weeding once you have planted out your bedding display, you can dig over your planting area a couple of weeks before you intend to plant. As the soil warms this will encourage the weed seeds to germinate and these can be removed before you plant up your display.
  • If you intend to plant ‘Value Plug Plants’ through the side of your baskets then you can use a smaller pot than 7cm and transfer it into baskets when well established.

Perennial & Annual Growing Guide


Your perennial plants can planted out in the garden straightaway. Choose a free draining, moisture retentive soil. Dig over the area, incorporating garden compost or other well rotted organic material to help retain moisture, this is especially important on light, sandy soils. Rake in a general fertilizer such as Growmore or Bone meal prior to planting.


These plants are ready to be planted directly into their final position. Fill your baskets, tubs and containers with a quality potting compost, incorporating water storage crystals and a slow-release fertiliser if available. Remove the pot and plant ensuring the root ball is covered with compost. Water the plants immediately after planting to settle the soil around the roots. It is important to keep the plants well-watered during dry spells and feed on a weekly basis. Regularly remove faded flowers to encourage further flower production.

Plug Plant Growing Guide

As soon as your Suttons plug plants arrive please carefully unpack them and check that the compost is moist. Should the compost be slightly dry then water carefully using a small watering can and allow to drain.

Stand the plants in a light, warm place. Provided they are kept moist they will happy like this for up to 3 days whilst you decide where to plant them.

For planting directly into the garden, ensure that the soil has been dug over and lumps broken down, then plant straight into their flowering position. In areas where the existing soil is poor, incorporate a good handful of compost into each area you are planting. Once planted don’t forget to give your plants a drink and protect them from any slugs and snails that may appear.

Caring for Container Plants

First, make sure that your container has at least one drainage hole and put some crocks in the base to cover the hole(s). Fill loosely with good quality potting compost. Water the plants well before planting and give thought to the height and spread of each plant when deciding whereabouts in the container to put them.

Some container plants look best when grown on their own, for example, marguerites and patio roses, whereas others look better in a mixed planting. The top 5 container plants are geranium, petunia, impatiens, fuchsia and lobelia but in reality, there is a huge selection of suitable plants

These are just a few of our many handy flower growing guides. If you haven’t found what you need then browse our full range!

Although you won’t get the day off at work for National Flower Day, it’s still the perfect occasion to show your appreciation for flowers and bring some colour and charm to your garden and home. We hope our guidance on how to celebrate National Plant a Flower Day is helpful and gives you enough to hit the ground running with the busy gardening and sowing season ahead!

Join the Suttons community today and take us with you on your gardening journey – #MySuttonsJourney

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