Rosemary Growing Instructions Print


Start the seeds 6 to 12 weeks before warm weather hits. Rosemary seeds take a long time to germinate. Soak the seeds before planting.[1] Pour your seeds into a shallow glass and add about twice as much water. Allow them to soak for several hours. Doing so lets the seeds absorb water, making them more likely to germinate.
Fill a seed tray with well-drained potting mix. Plant the seeds in the tray. Since rosemary has a low germination rate, you should plant several seeds into one slot to improve your chances of a seedling growing in each slot. Sprinkle the seeds onto the top of the potting mix before sprinkling a little more potting mix over the seed
Water lightly. Spray the seeds with a gentle mist from a spray bottle. The soil should be moist, but not damp.Cover the tray. Put plastic wrap over the tray, tightly wrapping it across the top.
Place the tray on a heat mat. The seeds require warmth to germinate. You can also sit the tray in a warm spot if you do not have a heat mat, but the ideal temperature should be between 75 and 85 degrees Fahrenheit (25 to 30 degrees Celsius).


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