To grow crepe myrtle, plant the seeds indoors, keep the soil damp, give the plant plenty of sunlight, bring it outdoors, and then transplant it permanently outdoors. The process takes several months.Continue Reading
Fill individual quart-sized pots with equal amounts of seed-starting medium and potting soil. Spray the soil with water until it is damp. Do not over-hydrate the soil.
Wait until spring, and then plant two seeds one-quarter of an inch deep. Gently cover the seeds with 1 inch of sphagnum peat moss, and mist it lightly with the spray bottle.
To preserve moisture, place a clear plastic bag upside-down around the pot. Place the pot in a window sill that receives plenty of warmth and sunlight. Mist the soil when it is dry to the touch. Allow the seeds to germinate for the next two to three weeks.
When the plant is roughly 3 inches tall, remove the bag. Keep the soil damp for the next four to six weeks, or until the plant is a foot tall.
Bring the plant to an outdoor area with partial sunlight. Continue to keep the soil damp until the end of summer or beginning of fall.
Crepe myrtle tress grow in partial sunlight in well-drained, acidic soil. Keep the plant well-watered, especially during the summer.