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Hemerocallis, an exceptional perennial bulb

Two hemerocallis flowers on a single stem
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Each red, orange or yellow trumpet opens for barely a day, yet new ones keep rising on long, slender stems above dense, evergreen leaves. The daylily (Hemerocallis) is unbeatable for edging beds, drives and walls, or cut for a vase. Give it light sun that never scorches, sheltered from wind, and it is extremely striking.

Key hemerocallis facts at a glance
Name Hemerocallis
Family Liliaceae (lily family)
Type Perennial
Height 20 to 40 inches (50 to 100 cm)
Exposure Full sun, part sun
Soil Ordinary, rather clayish
Foliage Evergreen
Flowering Early summer to early autumn

Both in pots and directly in the ground, it requires a little care to make the blooming more expansive.

Planting, repotting hemerocallis

Hemerocallis blooms atop long, slender stems. This means you must make sure it doesn’t get any strong winds. Also, make sure it doesn’t get scorching hot, since this would wilt the short-lived flowers even faster.

Planting hemerocallis in the ground:

It is recommended to plant hemerocallis in fall even though you can plant all the way up to spring if you avoid frost spells.

To keep your hemerocallis as long as possible, proceed to divide the clump after the blooming.

Planting hemerocallis in a pot:

Repotting in spring will let the plant develop well.

Select flower plant soil mix for this.

Where should your hemerocallis be placed?

This plant loves slightly shade-covered emplacements or sunny spots that don’t get too hot.

Both in pots and directly in the ground, prefer light sun and a spot that seems sheltered enough from wind.

Traditionally, Hemerocallis is a great plant to line the edges of flower beds, driveways and walls. It grows dense leafage and marks perimeters quite well.

The hemerocallis year: what to do and when

Daylilies ask for very little, but each task has its moment. Here is the whole cycle, from planting to winter protection, set out season by season.

The hemerocallis year: what to do and when
Task When How to do it
Planting in the ground Mid-autumn, or up to early spring outside frost spells Ordinary, rather clayish soil, out of strong winds
Potting and repotting Early to mid-spring Use flower plant soil mix so the plant develops well
Dividing the clump After flowering, from early autumn Split the clump to keep the plant going as long as possible
Removing spent stems Early summer to early autumn, as flowers fade Cut away stems bearing wilted flowers regularly
Cutting back Late autumn Cut the plant back to the shortest
Winter protection Midwinter, if colder than usual Mound dead leaf mulch over the base of the plant

Enriching the soil at planting time with soil mix, manure and seaweed compost gives the clump the best possible start.

Pruning and caring for hemerocallis

Single pink hemerocallis against a hazy green backdrop
Remove stems with wilted flowers as they fade

Eliminate stems with wilted flowers regularly.

Cut back to the shortest at the end of fall.

In case of winter that is colder than usual, it is best to protect the base of the plant with dead leaf mulch.

Learn more about the daylily

The flower of hemerocallis bulbs is unique
Striking blooms in red, orange and yellow, each lasting a day

This perennial, native to Asia, is also called “Hemerocallis“ and its blooming is very cute but lasts for only 24h.

It has the advantage of bearing evergreen leaves and boasting very beautiful flowers that appear in ranges of red, orange and yellow.

In a flower bed or as a cut flower in a vase, it is extremely striking.

Smart tip about hemerocallis

Upon planting, feel free to enrich the soil with soil mix and even manure and seaweed compost.


Images: own work: Rosalyn & Gaspard Lorthiois; Pixabay: Anja, Michael Reichelt

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