Picking the Best Bulbs for Borders
Keeping Your Border in Flower All Year
Frequently Asked Questions
Dig each hole two to three times deeper than the bulb itself, then place bulbs pointed end up in loose groups rather than straight rows. Firm soil back over the top and water once after planting. Most border bulbs are planted from September to November, ahead of the first frosts, so they have time to root before winter.
Daffodils, snowdrops and many alliums cope well in a border that gets dappled shade for part of the day, especially under deciduous trees where they get spring light before leaves appear. Full shade all year is harder for most border bulbs, so look for spots with at least a few hours of sun.
Most spring-flowering border bulbs go in from September through November, while soil is still workable and before hard frosts arrive. Planting earlier in this window generally gives roots more time to establish. Summer-flowering types such as gladioli are planted in spring instead, once the risk of frost has passed.
A general guide is 25 to 50 bulbs per square metre for a full, natural-looking display, though this varies by variety and bulb size. Larger bulbs such as fritillaria need more space between them, while smaller bulbs like crocus can be planted closer together in bigger groups.
Yes, mixing varieties is one of the easiest ways to keep a border in flower for longer, since different bulbs bloom at different times. Pair early types like daffodils with later ones such as alliums, and check that mature heights work together so taller bulbs sit toward the back.
Many border bulbs, including daffodils and alliums, naturalise well and return for several years with little extra care. Others, like some tulip varieties, tend to flower best in their first year and may need replacing more often for a full display. Leaving foliage to die back naturally helps bulbs store energy for the following year.