When derived from virus-free parent plants and rooted in sterile potting media, this kind of transplant should be free of most serious disease, insects, and nematodes. Established in rooting cubes. The second of these forms may be the best choice because cubes can be planted directly in the field after spring frost danger has passed. Using rooting cubes avoids insect, fungus, or nematode contaminations, which can occur even on fumigated nursery land. However, the third kind may reach maturity sooner, and the larger root system may allow survival under drier soil conditions during the planting year.
Dormant plants are best for planting.
Plants dug and held dormant in storage, if properly handled, are as good as freshly dug ones. In some cases, they may be superior to freshly dug ones. It is important to keep plants from drying out. As soon as the dormant plants arrive, open the packages and, if necessary, moisten the roots. To do this, dig a shallow trench, deep enough to accommodate the root systems, in a sheltered area where the soil is well drained.