Summer is coming to a close, which means it's time to plan when to plant spring bulbs. It may seem premature to think so far ahead, but these bloomers need a few months in the ground before they put on their dazzling display.
Spring bulbs appear in garden centres from September onwards, and can often be ordered online from late summer. So, now's the perfect time to decide which varieties and colours you want to grow, to keep up with the latest garden trends.
While all spring bulbs should generally be planted in autumn, different types call for slightly different timings to help them perform at their best. Below, gardening experts share advice for six of the most popular, including daffodils, tulips, and hyacinths.
An expert guide on when to plant spring bulbs in your garden
"Spring bulbs are a fantastic way to bring early colour and vibrancy to your garden, and timing is key to ensuring a stunning display,” says Nigel Lawton of Dobbies.
"Early bloomers like snowdrops, crocuses, and some varieties of daffodils are perfect for creating a sequence of colour as spring unfolds," he continues. "Later bloomers, such as tulips and alliums, can extend the season of colour well into late spring and early summer."
He explains how the ideal planting time for most is from September to November, before the first hard frost. "This allows the bulbs to establish their roots in the cooler soil, setting them up for a strong bloom in the spring."
Whichever bulbs you choose, it's a good idea to wear gardening gloves, such as these from Sarah Raven, to plant them, as they can irritate the skin. What should you not do with an orchid?
When to plant daffodils
“Daffodils, or narcissi, are a popular choice for early colour," says Emma Fell of Hillier Garden Centres. "They should be planted from September to October and can bloom as early as January, with varieties like ‘Tête-á-Tête’ and ‘Minnow’ being favourites. These cheerful yellow flowers are some of the first to brighten your garden in spring." You can shop "Minnow" daffodil bulbs at Hillier – we love its delicate, pale yellow blooms.
Be sure to read up on what to do with daffodils after flowering to encourage a second show the following year.
When to plant hyacinths
Hyacinths, in pinks, purples, blues, and whites, are perfect for cottage gardens and are well-loved for their intense fragrance. Emma recommends planting these beauties between September and October, to enjoy their blooms from March to May. After that time you need to master what to do with hyacinths after flowering to encourage further blooms the following year.
Try planting "Woodstock" hyacinth bulbs from Crocus for deep purple blooms.
When to plant snowdrops
“Snowdrops, or galanthus, often herald the arrival of spring, sometimes blooming as early as late December," says Emma. "These delicate white flowers should be planted in October or November in light shade with well-drained soil to mimic their natural woodland habitat."
These bulbs work well in containers, too, and can also be grown as rockery plants, points out Rosebie Morton, founder of The Real Flower Company.
A range of snowdrop bulbs is available from Sarah Raven.
Top tip: Snowdrops can also be planted in February "in the green" (when they have finished flowering but still have their leaves). In fact, this often has a better success rate than planting them in autumn.
When to plant tulips
Tulips are another spring bulb to plant slightly later – from October to November. "This is because they are prone to the disease tulip fire, which can distort the leaves and give the impression they have been scorched by fire," explains Emma. "The colder, later weather is more likely to destroy any disease lurking in the soil."
Rosebie notes how these bulbs benefit from deeper than normal planting ("about four times the depth of their bulb"). They also like rich soil, she adds, so it's worth incorporating peat-free compost into the hole. "If your ground is heavy, mix one part of compost with two of your soil and also some grit or sand to aid drainage."
Knowing what to do with tulips after flowering is key if you want to enjoy the blooms for another year.
When to plant crocus
"Crocus are especially good at naturalising in lawns and banks where they can be left for years and will multiply to give wonderful clumps of early spring beauty," says Rosebie. They also make pretty patio container plants if you're looking for a splash of early-season colour.
She recommends planting them in September. We love the "Spring Beauty" crocus variety from Sarah Raven for its striking mauve and deep purple hues.
When to plant alliums
Alliums are incredibly architectural, producing spherical flower heads in purple or white, followed by attractive seed heads. Emma recommends planting them between September and October. They typically flower from May to July, she adds.
Rosebie advises planting them at least one to two times their bulb depth with similar spacing – a useful gardening tip.
A popular variety is "Purple Sensation", available from Hillier.
FAQs
What is the latest you can plant spring bulbs?
Rosebie says spring bulbs definitely need to be in the ground by late November or early December. This gives them a chance to get going before a cold snap in the spring.
When should you plant spring bulbs for forcing indoors?
Narcissi and hyacinths are popular bulbs for growing indoors for early blooms.
Most bulbs can be started anytime from September, Rosebie says. She recommends keeping them in a dark, cool shed or garage for a few weeks in damp compost with the tips of the bulbs showing. When shoots appear, they can be moved inside into normal house temperatures.
The best time to plant them depends on when you want them to flower. For instance, hyacinths will generally flower in 13 weeks, Rosebie points out. So, if you want blooms for Christmas, she recommends planting them by mid-September. It's worth planting them in batches a week apart, she adds – this will increase your chances.
Paperwhite narcissi will only take six weeks to flower and can be grown either in compost or on a bed of pebbles with water up to the base of the bulbs, Rosebie continues. "'Tête-á-Tête' and similar narcissi will take nearer nine weeks to flower."
Top tip: Remember to buy bulbs that are already prepared for forcing, by checking the label.
While it's a good idea to look ahead to spring, there are still some gorgeous blooms to enjoy now, before the first frosts hit. Our guide on late summer flowers has plenty of options to try.
