Bulbs to Plant in June

Flowering Bulbs in June

June might feel late in the season for planting, but there's still a strong window for getting summer bulbs established. The soil is warm, conditions are settled, and many varieties will bloom reliably through late summer and right up to the first frosts. It's also a great month for filling any gaps that have appeared in borders or containers as spring displays fade.

Quick wins in June:

• Perfect for topping up borders, pots, patio containers, and hanging baskets
• Ideal for half hardy varieties that need warm soil to perform
• A smart way to keep flower colour going through the heart of summer and beyond

What Bulbs Can You Plant in June?

June suits bulbs, corms, and tubers that thrive in warm conditions and don't need a long lead time before flowering. Most varieties planted now will bloom within weeks rather than months, making June one of the most rewarding months for instant garden impact.

In June, look out for bulbs that:

• Are listed as ready to plant now (check each product page)
• Prefer full sun or tolerate semi shade depending on your garden setup
• Suit rich fertile, well drained soil or compost-filled containers
• Are suited to pots, raised beds, hanging baskets, or borders with good drainage

Top 5 Bulbs for June Planting

1. Tuberous Begonias: A go-to for hanging baskets, window boxes, and large containers. They thrive in partial shade and produce generous blooms in shades of pink, orange, yellow, and red right through to the first frosts. A reliable choice where full sun isn't always guaranteed.
2. Dahlias: Still very much worth planting in June. Tubers planted now will establish quickly in warm soil and deliver bold, abundant blooms through late summer. Brilliant as cut flowers and a staple of any serious flower garden.
3. Ranunculus (Buttercups): Delicate, densely-petalled blooms that punch well above their weight in borders, pots, and cut flower gardens. Plant corms in a sheltered spot with full sun and well drained soil and they'll produce a full range of colour. A lovely choice for scented gardens and patio containers alike.
4. Lilies: June is still a perfectly good time to plant lilies, especially in pots. Choose a sheltered spot with good drainage, use a rich compost, and most varieties will flower through mid to late summer. Brilliant for cut flower gardens and borders alike.
5. Gladiolus corms: Tall, dramatic, and brilliant for summer flowering displays, gladiolus corms planted in June will establish quickly in warm ground and deliver striking blooms through late summer, and hardy varieties will often come back the following year without needing to be lifted in autumn.

Planting Tips for June Bulbs

Warm conditions make June planting straightforward, but it's worth keeping a few things in mind.

Keep soil reliably moist after planting: June can bring dry spells, so water well and keep an eye on moisture levels, especially in pots, baskets, and raised beds that dry out faster than open borders.

Good drainage is still essential: Even in summer, waterlogged conditions will cause bulbs and tubers to rot. Work organic matter into heavy soil or plant in containers with proper drainage.

Match varieties to light levels: Most summer bulbs prefer full sun, but tuberous begonias and some lilies do well in partial shade or semi shade. Put the right plant in the right spot for the best results.

Don't bury too shallow: In warm, dry conditions there's a temptation to plant shallowly for speed. Stick to the recommended depth as it helps roots establish properly and protects bulbs from drying out.

Shelter tender varieties: Half hardy corms and tubers benefit from a sheltered spot, particularly if your garden is exposed. A warm wall or patio corner makes a real difference.

Aftercare Made Simple

June-planted bulbs get off to a fast start in warm soil, so the focus shifts quickly to keeping them performing well. Water consistently, especially during dry spells, and feed container plants every couple of weeks once growth is active as pots and baskets can deplete nutrients faster than open borders.

Deadhead spent blooms regularly to encourage more flowers and keep displays looking fresh through the summer long season. As summer winds down and foliage begins to die back, ease off watering gradually. Tender tubers and corms should be lifted before the first frosts arrive, dried off, and stored somewhere cool and frost-free over winter ready for next year.

Frequently Asked Questions

Is June too late to plant summer bulbs? 

No, many summer bulbs, corms, and tubers planted in June will flower within weeks in warm soil. Dahlias, tuberous begonias, and lilies are all well suited to June planting and will carry colour right through to the first frosts.

What summer bulbs grow well in partial shade? 

Tuberous begonias are the standout choice for shadier spots, producing generous flower colour in semi shade where sun-loving varieties would struggle. Some lilies also tolerate partial shade, particularly in warmer, sheltered gardens. Most other summer bulbs prefer full sun for the best results.

What soil type works best for summer bulbs? 

Most summer bulbs prefer well drained soil that's been enriched with organic matter or compost. Heavy, waterlogged soil is the most common cause of poor results. If your garden soil is dense, containers and raised beds are a reliable alternative with better drainage and more control over soil type.

How do I keep dahlias and other tender tubers going until the first frosts? 

Regular deadheading, consistent watering, and fortnightly feeding will keep dahlias and other tender varieties performing through the flowering months. Once foliage starts to die back after the first frosts, lift the tubers, dry them off, and store in a cool spot protected from frost over winter.