Hardwood cuttings of highbush blueberry (Vaccinium corymbosum L.) rooted and grew best in a medium of sphagnum peat alone or in mixtures of peat and sand (1:1 and 2:1 v/v) in full sunlight under intermittent mist. Mixtures of peat and sand are recommended because root breakage is a problem when separating plants produced in peat alone. A commercial rooting hormone was of no value in increasing rooting.
Hardwood cuttings from canes of highbush blueberry (Vaccinium corymbosum L.) collected in early dormancy and stored at 2°C until spring rooted better than cuttings collected in the latter part of the winter. Cuttings placed immediately in a greenhouse propagation structure rooted and grew poorly when collected before mid-December but if collected after mid-December produced plants up to two-fold larger than spring-rooted plants after 1 growing season due to the extended growing period.