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IMPORTANT! This process is extremely delicate.  Plants are very fragile for a month after germination.

Preparing the seed bed


the seeding area.


the packet to loosen the seeds and measure out 1 teaspoon of seed.


1 teaspoon of seed with 10 teaspoons of sieved sand to dilute the seeds if they are clean. If the seeds have not been winnowed and are mixed with bits of flowers, then reduce the amount of sand accordingly.

Adapt the amount of sand if necessary for homogenous sprouting at optimal density (based on germination rate of seeds).

Gently sprinkle
the seed/sand blend in lines, in wide movements, over the whole seed bed, paying attention to the wind direction
Use a fine spray

or water mister to fix the seeds.

You can use a clean sprayer that has not previously been used to apply chemicals or a watering can with a spray head.  Alternatively, moisten a broom and shake to create a rain of small droplets.  Do not use a watering can without a spray head.

Seeds must remain on the surface to germinate.  Hold can or mister sufficiently high to avoid disturbing or moving the seeds.


morning and evening with a mister or very fine spray until transplanting OR use a capillary watering system by placing the perforated half canister in a non-perforated half canister half-filled with water.

IMPORTANT  : moisten the soil only.  Do not swamp the soil or the seedlings will rot!


with wire netting or untreated mosquito net after watering. Raise netting on sticks placed around the seedbeds to protect from pests.

Appearance of “first two round leaves”

followed by other toothed leaves (2 to 5 days if germination is good - up to 2 months).


all weeds by hand or with a hoe!

pépinières en pleine terre et repiquage en fonction de la densité de semis (Agathe Cornet-Vernet)


1. Salisu Muhammad, T. et al. In Situ Germination and Early Seedling Growth of Wormwood (Artemisia annua L.). American Journal of Plant Sciences, 5, 1694-1701. 2014.  Available on :