How To Grow Impatiens From Seeds

What You'll Need
Impatiens seeds
Sterilized soil
Growing trays or pots
Germination mat

Impatiens seeds are easy to own by cultivating existing plants, or by buying the seeds from a reputable commercial grower. Just follow these few steps to grow impatiens from seeds.

Step 1 – Buy or Harvest Seeds

Gardeners who want to grow impatiens from seeds should select and obtain the seeds in advance of planting time, as many desirable impatiens seed varieties may be only available via special order from online nurseries. Allow 2-3 weeks for the seeds to arrive.

If harvesting seeds, be aware that what you get a slight variation from the original plant. Harvest seed pods, pop them open and store the seeds (they should be brown and look like little commas) in an envelope to dry out. Keep in mind that double impatiens varieties are almost always sterile. The only way to get a true duplicate of this type of plant is to take a cutting.

Step 2 – Starting Seeds Indoors

Although impatiens seeds will germinate if planted directly outdoors, they’ll do best if started indoors. It’s also a good idea for impatiens that will serve as houseplants.

Step 3 – Planting Instructions

Commercial impatiens seed growers recommend using sterilized soil for planting impatiens seeds.

  • Note that these will be very tiny seeds, so they only need to be pressed 1/8-inch into the soil.
  • Cover very lightly with a sprinkling of vermiculite.
  • Be sure to mist regularly to keep moist.
  • Soil temperature should be between 72 and 78 degrees Fahrenheit. To keep this temperature, some gardeners place growing trays or pots on top of a germination mat or a warm appliance such as a dryer.
  • Expect seeds to germinate in about 10 days to 3 weeks.

Step 4 – Transplanting Seedlings

Once impatiens seeds germinate and grow for a few weeks, transplant them to individual or larger containers. They can also be transplanted directly outdoors if the temperature is warm enough in the spring. Space plants a distance of 12 to 18 inches apart.

Step 5 – Growing Conditions Impatiens Require

  • Impatiens like full to partial shade to grow their best.
  • As for soil, it should be rich and moist and well drained. Don’t plant impatiens under a drain spout or near water runoff.
  • Impatiens plants require regular watering. Do not allow them to completely dry out.
  • Fertilize monthly with a general all-purpose fertilizer.
  • For impatiens planted in hanging pots or containers, use a liquid fertilizer every third week.

The reward of planting is certainly worth the effort – a virtually non-stop riot of colorful blooms that last the entire season.