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Propagating Boneset by Seed

Written by Mindy on August 7th, 2017

Boneset is a biennial in USDA Plant Hardiness Zones 4 through 8. It grows from two to four feet in height. During the summer, this plant produces a beautiful white bloom. This plant continues to bloom all the way to the fall.

propagating.bonesetThe growing requirements of this plant are flexible. It does very well in partial shade but can take full sun. Boneset likes a soil that is moist and organically rich but it can tolerate some drought conditions.

When it comes to propagating this plant, you can divide it but that requires having the plant. A better approach is to propagate through seed. While you can plant your seed in the garden or landscape during the late summer to early fall, some individuals prefer to propagate indoors. Keep in mind though that the seeds planted in late summer to fall will not germinate that year instead they will break ground in the spring. The reason for this is the fact that this plant needs to have its seeds exposed to a moist and cold environment (cold stratification). To mimic this for indoor planting, first count back three weeks from your local frost free date. Once you have that add another 30 days to this number. Mark both dates on a calendar. The 30 day mark is when you need to cold stratify your seeds by placing them in a sealable bag that is half filled with moistened soil. Mix the seeds in this planting medium, seal the bag and put in the refrigerator for 30 days.

During this time period, check your seeds at least once a week to make sure that the planting medium remains moist. If the seeds start to germinate, remove and plant.

If your local frost free date has passed, plant the seeds outdoors. On the other hand, if you want to start indoors, the first step you will need to do is to prepare the container. Clean and sterilize the pot or flat in bleach water. Rinse in clear water. Place the container out to dry. Next, add drainage material if you are using a pot. Fill with a well draining potting soil mix. Water the soil until you see moisture coming out the bottom of the container. Now you are ready to plant the seed. Boneset seed is small. All you will need to do is sprinkle the seed on top of the moistened planting medium. Cover very lightly and mist with water. Place in a sunny location and monitor soil moisture. In 7 to 14 days, your seeds will have germinated.

Outdoor planting only requires one to sprinkle the seed on prepared ground. Make sure to thin and/or plant the boneset so that there is 8 to 10 inches between plants.

 

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