Quick answer: Most flowers sprout in 5–21 days at 65–75°F. Surface-sow tiny seeds (petunia, snapdragon, begonia) and cover larger seeds (sunflower, nasturtium, morning glory) ¼–½" deep. Give bright light right away.

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"Patio Flower Garden" Seed Mix - Plantflix

details

Difficulty Beginner
Germination 5–21 days
Temperature 65–75°F
Depth Surface to ½"
Seed prep (none required, but recommended for some varieties)
Method Greenhouse
Time to maturity 3-6 months
Light Full Sun / Part Sun / Grow Lights
Pet-friendly No
flower seeds

instructions

  1. Moisten the mix in a 12-cavity mini greenhouse.
  2. Sow by seed size. Tiny seeds on the surface; larger seeds ¼–½" deep. Soak or nick morning glory and nasturtium first.
  3. Dome on at 65–75°F until sprouts appear.
  4. Bright light right after sprouting, or a grow light 14 hrs/day.
  5. Pinch and pot up. Pinch tips for bushier plants; move to bigger pots or outdoors after frost.

plant care tips

  • Light: flowers need the most light of any indoor plants. Use a grow light in winter.
  • Water: keep evenly moist, not soggy.
  • Feeding: bloom fertilizer every 2–3 weeks.
  • Deadhead: pinch off faded flowers for more blooms.
try them out!

faqs

What flowers can I grow indoors from seed?

Viola, petite marigold, wax begonia, African violet and dwarf sunflowers do well.

Why won't my flowers bloom indoors?

Usually not enough light.

When should I move seedlings outside?

After your last frost, once they've been hardened off for a week.

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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