BBC Gardener's World experts say 'last chance' to plant these three stunning flowers for summer

With summer fast approaching, many people haven't yet planted their summer blooms. However, there's still time to get out into the garden and make final preparations, as certain flowers planted now will bloom within a matter of weeks.

"Many flower seeds can be directly sown outdoors, while earlier sowings can now be planted out after a period of acclimatisation (hardening off) to outside conditions," said experts from BBC Gardeners World. While those already planted out in early May will bloom earlier, some flowers planted now may flower as soon as June.

It means it's not too late to ensure some colour in your garden. And it could break out in just a few weeks ahead of the official start of summer on June 20.

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Here are some perfect picks to get you started:.

  • Nasturtiums - They are an easy-to-grow, seasonal annual that flowers in summer and produces red, orange, and yellow blooms. They can also come in cream, pink, burgundy, and crimson, reports the Express.

  • Cornflowers - These hardy annuals are perfect for beginners and produce blue, pink, and white flowers.

  • Sunflowers - These large, showy flowers are a classic summer staple and come in various colours, including yellow, orange, and red.

Nasturtiums

Typically planted in your garden towards the end of May, are likely to bloom in late June or early July. The bushy varieties can be planted in pots or directly into the ground, while trailing varieties are a favourite for hanging baskets.

These flowers rarely need watering when growing in the ground, but it's advisable to increase your watering schedule during dry, hot periods. Deadheading your nasturtiums will ensure more flowers bloom for longer.

If you're transferring flowers from a pot purchased at a garden centre into the ground, make sure to dig a hole as big as the pot they were growing in and water them well. Nasturtiums grown in pots or containers will need good drainage.

Sunflowers

A family favourite, sunflowers are a plant that the whole family can get involved with. They are fairly easy to look after and watching them grow to vast sizes will be sure to keep little ones engaged.

Though sunflowers are known for being yellow, some flowers grow in shades of rust, green and white.

Sunflowers planted out in late May will likely flower fully by late June or early July. If you are growing sunflowers from seed, it will take roughly 10 to 11 weeks for them to bloom, so you likely won't see your flowers until late summer.

When planting your sunflowers make sure to select a sunny spot in your garden that is sheltered from strong wind. Compost or well-rotted manure will give the soil an added boost before planting.

Sunflowers thrive with plenty of hydration and if you're aiming for the sky with your sunflowers, remember to nourish them weekly with a nitrogen-rich fertiliser. As your sunflower reaches new heights, it may require a stake to maintain its strength and stability.

Cornflower

The clock is ticking for planting cornflowers. This week presents the last chance to ensure blooms within the year.

If you're starting from seed, expect around 10 weeks until flowering. However, their blooming period might not be as lengthy as other summer flowers.

These blue and lavender beauties prefer sunny spots with well-drained soil. Keep an eye out for weeds, as they can pose a threat to your flowers.

Cornflowers are a great choice for children's gardening projects due to their low-maintenance nature. Regular deadheading can encourage more blooms.

Unlike many plants, cornflowers actually thrive in low fertility soil, so there's no need for additional fertiliser or organic matter.