Repotting guide

When & how to repot Glory of the Snow (Chionodoxa forbesii)

Also called Glory of the snow, Forbes' glory of the snow, Star of the snow.

More about glory of the snow

About Glory of the Snow

Chionodoxa forbesii · also called Glory of the snow, Forbes' glory of the snow · flowering

Glory of the snow is a small, early-spring-flowering bulb native to the mountains of western Turkey, producing clusters of upward-facing, sky-blue flowers with a contrasting white eye on stems 10–15 cm tall. It naturalises readily in short grass, gravel gardens, and beneath deciduous trees, spreading both by seed and offsets to form dense drifts over time. The single most important care rule is to leave the foliage to die back completely before mowing or removing it, as the leaves feed the bulb for next year. The bulbs can cause mild gastrointestinal upset if ingested and should be kept out of reach of pets.

Mature size: 10–15 cm tall in flower; individual clumps spread to 5–10 cm and self-seed widely.

How to tell glory of the snow needs repotting

Repotting on a calendar is less reliable than reading the plant. For glory of the snow, watch for these signs:

Flowering has tailed off year on year and the clump has become congested and overcrowded.
Lots of leaf and few flowers — a classic sign that glory of the snow bulbs or tubers need lifting and dividing.
Bulbs visibly bursting the pot or pushing each other to the surface.
It is the natural dormancy window (foliage yellowed and died back) — the only safe time to lift and split.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot glory of the snow

Lift and divide every 3–4 years once clumps congest. Rather than a true repot, glory of the snow is lifted and divided once the clump congests and flowering drops off. Small clump-forming bulb that naturalises freely, spreading by self-seeding and offsets to produce expanding colonies over several years..

What size pot to step glory of the snow up to

Pot size matters less than depth and spacing here. When you replant glory of the snow, set the bulbs or tubers at the correct depth (a rough guide: two to three times their own height of soil over the top) and space them so they are not touching. A wide, shallow pot suits a clump better than a tall narrow one.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot glory of the snow

The only safe window is dormancy: wait until the foliage has yellowed and died back naturally, lift and divide then, and replant before or at the start of the next growing season. Disturbing glory of the snow in full growth or flower sets it back badly.

Step-by-step: repotting glory of the snow

Wait for dormancy. Let glory of the snow foliage yellow and die back completely. Lifting while it is in growth wastes the energy it is storing for next year.
Lift carefully. Loosen the soil well away from the bulbs/tubers with a fork and ease the whole clump out without spearing them.
Separate the offsets. Gently pull the clump apart into individual bulbs or tubers. Keep only firm, healthy, blemish-free ones.
Replant at the right depth. Reset them in fresh well-drained, humus-rich loam or gritty soil at the correct depth and spacing — not touching — so each has room to bulk up.
Water in and rest. Water once to settle them, then keep on the dry side until growth resumes. Do not feed until leaves are actively growing.

Aftercare

After replanting glory of the snow, keep the soil barely moist — not wet — until shoots appear; bulbs and tubers rot in cold, saturated soil. Once leaves are growing strongly, resume normal watering. Hold off feeding until the plant is in active growth again.

The right soil mix for glory of the snow

Glory of the Snow wants well-drained, humus-rich loam or gritty soil. Performs well in a wide range of soil types including chalk and clay, provided drainage is good; plant bulbs 5–7 cm deep in autumn to replicate rocky mountain-meadow conditions. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting glory of the snow — frequently asked questions

How often should you repot glory of the snow?

Lift and divide every 3–4 years once clumps congest for glory of the snow. Glory of the Snow is lifted and divided, not "repotted". Every 3–4 years, once the foliage has died back and it is dormant, lift the clump, separate the offsets, and replant at the correct depth in well-drained, humus-rich loam or gritty soil. Crowding, not pot size, is what reduces flowering over time.

What size pot does glory of the snow need?

When is the best time of year to repot glory of the snow?

Do you "repot" glory of the snow, or lift and divide it?

You lift and divide it. Glory of the Snow grows from bulbs or tubers, so instead of repotting you wait for dormancy, lift the congested clump, separate the healthy offsets, and replant them at the right depth and spacing. Doing this every 3–4 years restores flowering.

Should you fertilise glory of the snow after repotting?

Hold off feeding glory of the snow until it is in active growth again. Fresh soil already carries enough nutrients to get it re-established, and feeding disturbed roots too soon does more harm than good.