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Nemesia

We track 7 varieties; the ones most used by real gardeners.

7 varietiesZones 9–10Mostly full sun

The 7 most-saved Nemesia varieties

Track your Nemesia in Sow

Save the Nemesia you grow and get care reminders timed to your zone.

How to grow Nemesia

Whats common across all Nemesia varieties in our catalog — drawn from the care records of the 7 most-grown of them.

The Nemesia year

  • FertilizeApril–August100% of varieties

    Apply balanced liquid fertilizer every 4-6 weeks for continuous bloom

  • PlantMarch and April86% of varieties

    Plant transplants outdoors after all danger of frost has passed

  • Pinch TipsJune and July57% of varieties

    Pinch back growing tips when young to encourage a bushier habit

  • DeadheadMay–September43% of varieties

    Remove spent flowers or shear lightly if blooming slows down

Do

  • Prune after flowering to promote bushiness
  • Prune lightly after flowering to encourage bushiness
  • Water regularly to keep soil moist but not soggy 🌱
  • Prune after flowering to maintain shape
  • Apply balanced fertilizer monthly during the growing season

Avoid

  • Avoid overwatering to prevent root rot ❌
  • Avoid planting in poorly drained soils
  • Don't prune in late fall or winter
  • Don't neglect pest monitoring

What goes wrong with Nemesia

ProblemWhat you'll seeWhat to do
AphidsSticky residue on leaves and distorted growthSpray with insecticidal soap or neem oil
Spider MitesFine webbing and speckled leavesIncrease humidity and apply insecticidal soap
Spider mitesFine webbing on foliageUse insecticidal soap and increase humidity
Root rotWilting and blackened rootsImprove drainage and reduce watering
Powdery mildewWhite powdery coating on leavesImprove air circulation and apply organic fungicide
Root RotWilting and yellowing leaves with mushy rootsEnsure well-draining soil and reduce watering

Making more Nemesia

Cuttings

  1. Take 4-inch softwood cuttings in late spring.
  2. Dip in rooting hormone and plant in moist potting mix.
  3. Keep humid and place in indirect light for 6 weeks.

Seed

  1. Tuck seeds into moist soil in early spring. (2 weeks)

Nemesia questions

How many types of Nemesia are there?

The Sow catalog tracks 7 distinct Nemesia varieties. The most popular — ranked by 20 real gardeners — are shown first above.

What zones does Nemesia grow in?

Across its varieties, Nemesia covers USDA Zones 9–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.

When does Nemesia bloom?

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

Which Nemesia 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.

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