How do you propagate cranberry viburnum from seed? I have a cluster of berries I gathered this spring. Do you just put them into soil?
First the berries have to look completely ripe to somewhat over-ripe when you pick them. Clean the seed immediately of all pulp. Seeds should be planted right away or the they go dormant. To break dormancy requires 3 months of warm stratification in damp sand or vermiculite (75F) followed by 3 months in the frig at 40F. Use a small plastic bag. Ideally, the bag is opened weekly to let fresh air in and to make sure the sand is moist (not wet). Then you are ready to plant. Of course, you could put it into the garden and let Mother Nature do the stratification for you. Hazards of this method are 1. you forget you planted it; 2. squirrels dig it up; 3. it doesn't stay moist; 4. a rabbit eats the seedling, etc. Viburnum are easily propagated from stem cuttings.