Also known as Montbretia · 349 gardener saves

Crocosmia: the varieties gardeners actually grow

Crocosmia, the genus most gardeners know as montbretia. We track 17 varieties; these are the ones gardeners actually save and plant, ranked by real saves rather than catalog marketing. Each links to full care, bloom, and live price data.

17 varietiesZones 5–10Mostly full sun

The 12 most-saved Crocosmia varieties

Of 17 in the catalog — ordered by how many gardeners actually grow them.

Browse all 17 Crocosmia varieties →

How to grow Crocosmia

What the Crocosmia varieties in our catalog actually agree on — drawn from the care records of the 17 most-grown of them, not from a generic template.

The Crocosmia year

  • DivideFebruary, March and September100% of varieties

    Divide overcrowded clumps every 3-4 years when flowering declines

  • PlantMarch and April94% of varieties

    Plant corms 3 inches deep in spring after danger of hard frost

  • Spring CleanupFebruary76% of varieties

    Cut back dead foliage to the ground before new growth appears

  • Winter PrepOctober and November71% of varieties

    Leave foliage until it dies back naturally after a hard frost

Do

  • Water consistently during the growing season 🌱
  • Water regularly during active growth 🌱
  • Apply a balanced fertilizer in spring and summer
  • Divide clumps every few years
  • Mulch around plants to retain moisture and suppress weeds

Avoid

  • Avoid overwatering to prevent bulb rot ❌
  • Avoid overwatering to prevent rot ❌
  • Refrain from cutting back foliage until it yellows naturally
  • Avoid overwatering in winter ❌

What goes wrong with Crocosmia

ProblemWhat you'll seeWhat to do
AphidsDistorted leaves and sticky residueSpray with insecticidal soap or neem oil
Spider mitesFine webbing on foliageIncrease humidity and spray with miticide
Spider MitesFine webbing and speckled leavesIncrease humidity and apply miticide
SlugsChewed leaves and flower damageUse organic slug bait or handpick during damp evenings
Botrytis (Gray Mold)Gray fuzzy mold on flowers and leavesImprove air circulation and remove affected parts
Botrytis (gray mold)Gray fuzzy mold on flowers and leavesImprove air circulation and remove affected plant parts
Bulb rotSoft, decayed bulbsEnsure well-draining soil and avoid overwatering

Making more Crocosmia

Corm division

  1. Wait until the plant is dormant in fall or early spring
  2. Carefully dig up the clump and gently separate offsets
  3. Replant divisions 4 inches deep in prepared soil
  4. Water thoroughly and mulch around new plants

Seed sowing

  1. Collect seeds after flowering has finished.
  2. Sow seeds in well-draining seed-starting mix in spring.
  3. Lightly cover with soil and keep moist.
  4. Maintain temperatures around 65-70°F for germination.
  5. Transplant seedlings once established.

Crocosmia questions

How many types of Crocosmia are there?

The Sow catalog tracks 17 distinct Crocosmia varieties. The most popular — ranked by 349 real gardener saves — are shown first above.

What zones does Crocosmia grow in?

Across its varieties, Crocosmia covers USDA Zones 5–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.

When does Crocosmia bloom?

Most Crocosmia varieties bloom in late summer, mid-summer, mid to late summer. Staggering early, mid, and late varieties extends the genus's season in one bed.

Which Crocosmia should I choose?

Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.

Keep exploring

Design with Crocosmia in your own yard

Snap a photo of your space and see these varieties planted in it — sized correctly, matched to your zone, with care reminders included.

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