7 Easy Annual Flowers to Grow This Year
Simple, reliable blooms for every kind of gardener
If you’re looking to fill your garden with colour this year without overthinking it, annual flowers are a brilliant place to start. They grow fast, they’re generous, and they don’t need fancy kit or loads of experience. Sow them, give them a bit of care, and they’ll reward you for months.
Here are seven of the easiest annuals to grow — perfect for beginners, busy gardeners, or anyone who wants quick, reliable colour.
1. Calendula
Calendula is one of the most forgiving flowers you can grow. It germinates quickly, shrugs off cooler weather, and flowers for months if you keep picking. Great in borders, pots, and even veg beds where it helps attract pollinators.
2. Cornflower
Cornflowers love full sun and poor soil, which makes them ideal for tricky spots where other flowers sulk. They’re brilliant for bees, easy to grow from seed, and perfect for cutting — the more you pick, the more they bloom.
3. Cosmos
If you want height, movement and masses of flowers, cosmos is your friend. It grows fast, fills gaps beautifully, and flowers right through summer. Deadhead it regularly and it will keep going until the first frost.
4. Nasturtium
Nasturtiums are wonderfully unfussy. They grow in almost any soil, tumble happily out of pots, and are great for filling bare patches. The leaves and flowers are edible too, adding a peppery kick to salads.
5. Sunflowers
A classic for a reason. Sunflowers are easy, cheerful, and brilliant for kids and beginners. Whether you grow a giant or a branching variety, they’re guaranteed to bring joy — and the birds will thank you later in the season.
6. Zinnia
If you love bold, bright colours, zinnias are unbeatable. They thrive in warm weather, make excellent cut flowers, and come in a huge range of shapes and shades. Give them sun and space and they’ll reward you all summer.
7. Sweet Peas
Sweet peas look delicate but they’re tougher than you think. Sow them early, give them something to climb, and they’ll fill your garden with scent for months. Pick them often to keep the flowers coming.
Why these seven?
Because they’re reliable. They germinate well, grow quickly, and don’t demand much. They’re also brilliant confidence‑builders — once you’ve grown a few easy annuals, everything else starts to feel more doable.
If you’re new to growing, start with one or two of these. If you’re already hooked, grow the lot and enjoy a garden full of colour from early summer to the first frost. You can find the full collection here.