- 1). Fill a seed tray with well-moistened multipurpose compost, leaving a 1-inch gap at the top. About 10 weeks before the last frost in your area, sow the seeds evenly in the tray, cover with 1/2 inch of compost and then water.
- 2). Put the tray somewhere warm, about 65 degrees Fahrenheit, and dark, checking it every day to see if the seeds have sprouted. When they have, move the container into the light on a windowsill or in a greenhouse. Avoid putting the tray in direct sunlight. Keep the compost in the tray moist.
- 3). Once the seedlings have grown to 2 or 3 inches, thin them out so that there is four inches between each one.
- 4). Remove the seedlings from the tray after the last frost. Carefully tease them out with a knife with as little root damage as possible.
- 5). Add a 3-inch layer of well-rotted compost to a sunny, free-draining spot in the garden. Dig the compost in thoroughly.
- 6). Push two fingers into the soil to make a hole deep and wide enough to accommodate the roots of the seedlings. Place the seedlings in the holes and backfill, firming down the soil.
- 7). Keep the soil moist as the seedlings root and grow. Once established, most types of verbena are quite drought resistant.
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