Also known as Wallflower · 151 gardener saves

Erysimum: the varieties gardeners actually grow

Erysimum, the genus most gardeners know as wallflower. We track 8 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.

8 varietiesZones 5–10Mostly full sun

The 8 most-saved Erysimum varieties

Of 8 in the catalog — ordered by how many gardeners actually grow them.

How to grow Erysimum

What the Erysimum varieties in our catalog actually agree on — drawn from the care records of the 8 most-grown of them, not from a generic template.

The Erysimum year

  • PruneMay100% of varieties

    Shear back lightly after the first major flush to maintain shape

  • DeadheadMarch–June75% of varieties

    Remove spent flower spikes to encourage continuous blooming

  • PropagateJune–September63% of varieties

    Take softwood cuttings in early summer to replace aging plants

  • PlantMarch, August and September50% of varieties

    Plant transplants in spring or sow seeds in late summer/fall

  • FertilizeMarch38% of varieties

    Apply balanced liquid fertilizer twice during the main growing season

  • Spring CleanupFebruary38% of varieties

    Remove any winter-damaged foliage before new growth begins

Do

  • Prune after flowering to maintain shape
  • Water deeply during dry spells without waterlogging 🌱
  • Use organic compost to enrich soil
  • Water moderately, allowing soil to dry between watering 🌱
  • Prune dead or damaged stems promptly

Avoid

  • Avoid overwatering to prevent root rot ❌
  • Avoid overhead watering to prevent fungal diseases ❌
  • Don’t let soil stay soggy
  • Avoid excessive fertilization which can cause legginess

What goes wrong with Erysimum

ProblemWhat you'll seeWhat to do
AphidsSticky residue and distorted leavesSpray with insecticidal soap or neem oil
Cabbage WormsChewed leaves and frassApply Bacillus thuringiensis (Bt) as an organic control
CaterpillarsChewed leaves and stemsHandpick or apply Bacillus thuringiensis
Cabbage LooperChewed leaves and holesApply Bacillus thuringiensis (Bt) or organic insecticide
Powdery MildewWhite powder on leavesImprove air circulation and apply neem oil
Root RotWilting and blackened rootsEnsure proper drainage and reduce watering
Root rotWilting despite wateringImprove drainage and reduce watering frequency

Making more Erysimum

Seed

  1. Tuck seeds into moist soil in early spring.
  2. Keep soil consistently moist for germination, approximately 2 weeks.
  3. Thin seedlings to 6 inches apart once established.

Cuttings

  1. Select healthy semi-hardwood stems in late summer.
  2. Dip cuttings in rooting hormone and plant in moist soil.
  3. Keep in shaded area for 6 weeks until roots develop.

Erysimum questions

How many types of Erysimum are there?

The Sow catalog tracks 8 distinct Erysimum varieties. The most popular — ranked by 151 real gardener saves — are shown first above.

What zones does Erysimum grow in?

Across its varieties, Erysimum 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 Erysimum bloom?

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

Which Erysimum 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 Erysimum 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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