Nothing beats a container garden filled with marjoram, thyme, and basil. While you can buy the seeds for this perennial herb that is normally grown as an annual, you may be challenged with the results. The germination rate for marjoram seeds is around 50 percent and once they have germinated their growth is slow. Knowing all this, it is still fun the give propagating marjoram from seed a try.
To begin this process, you need to pull out your gardening calendar and count back six weeks. Mark this date because this is the soonest you can start your marjoram seeds indoors.
Once that date nears, prepare your container for planting. What this means is you want to clean and sterilize the pot. This is easily done by first running a basin of water and adding a capful of bleach. Next place your container in the water and allow it to soak for a few minutes. After that, scrub to remove any soil and rinse in clear water. Allow to dry completely before filling with a good, all purpose potting soil mix.
The next step is to moisten the soil until you see moisture come out the bottom. At this point, you are ready to sprinkle your seeds on the soil surface. There is no need to add any soil on top. Moisten the surface of the soil again with a misting bottle and place on a south facing, sunny windowsill. At this stage when it comes to watering, do not simply pour water onto the soil surface. If this is done, the little seed will get carried down through the soil and become buried. It is better to continue to mist the soil surface until you see signs of seed germination.
In 8 to 14 days, you will begin to see little dots of green. These are the seedlings emerging. Continue to monitor the soil moisture until you are two weeks out from your local frost free date. At this time, gradually harden off your seedling over that two week period. Once they are hardened off and your frost free date has passed, you can plant your seedlings in a sunny location that contains well draining soil.
To keep your seedlings looking their best, pinch off the tips to force the seedlings to branch out. Also, feed your marjoram once a month with a balanced, organic fertilizer, such as a 10-10-10.