Quick answer: Sow Fatsia seeds ¼" deep in moist mix, keep them at 60–75°F under a dome, and expect sprouts in 2–6 weeks. Unlike most tropicals, they don't need extra heat.

Learning how to grow from seed? Head over to our planting guide!

Fatsia Japonica 'Japanese Aralia' Seeds - Plantflix

details

Difficulty Intermediate
Germination 2–6 weeks
Temperature 60–75°F
Depth ¼"
Seed prep (Optional) pre-soak in water for 12-24 hours
Method Greenhouse
Time to maturity 6-12 months
Light Part Sun / Shade / Grow Lights
Pet-friendly Yes
fatsia seeds

instructions

  1. Soak (optional). Soak overnight in warm water.
  2. Sow. Plant 1–2 seeds per soil pod, ¼" deep.
  3. Dome on. Cover with a humidity dome at 70–85°F.
  4. Keep moist. Keep the mix lightly moist while you wait.
  5. Uncover slowly once sprouted, and move to bright indirect light.
Fatsia Japonica 'Japanese Aralia' Seeds - Plantflix

things to know

  • Cool-tolerant: one of the few big-leaf houseplants that likes cooler rooms.
  • Big leaves: the hand-shaped leaves get larger as the plant matures.
  • Soil: well-draining coir or peat-based mix.
  • Pick a planter that holds moisture: plastic, rice hull or ceramic, with a dome. Skip terra cotta, peat pots, coco coir pots and egg cartons. They wick water away from the seed.
  • New to seeds? Start with our seed prep guide and planting guide.
grow your own!

plant care tips

  • Light: bright indirect light to part shade. Direct sun scorches it.
  • Water: keep lightly moist; water when the top inch dries.
  • Temperature: happiest at 55–75°F. Avoid hot, dry spots.
  • Feeding: monthly in spring and summer.
  • Pruning: cut back leggy stems in spring for a fuller plant.
try them out!

faqs

How long do Fatsia seeds take to sprout?

Usually 2–6 weeks.

Is Fatsia a Monstera alternative?

It has a similar big-leaf look, and it's often suggested as a more pet-friendly option.

Is Fatsia pet-safe?

It's often listed as low-toxicity, but chewing can irritate. Keep it out of reach of pets that nibble.

these are key aspects of your setup

check your setup!

  • 💡light: is your setup away from direct sun? these seeds should stay in indirect or filtered light, or better yet, under grow lights.
  • 💧moisture: does the soil feel very moist to the touch?
  • 🌡️temperature: is the setup away from direct sun, open windows, or heat vents? make sure it stays consistently between 70F-90F (use a heat mat if the temperature falls under 70F)
  • ☁️humidity: do you see condensation on the humidity dome? if not, make sure the dome is fully sealed, the setup is warm enough, and there's enough moisture in the soil.
  • 💚care: leave the dome on and only open it once a week to add water.
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