Within the NPS herbaceous plants propagation methods are detailed as either from seed or vegetatively. Seed raised plants will give the variation typical of the species. Some cultivars breed true from seed, others do not. Clonal forms can only be vegetatively propagated.
It is advisable to check the propagation requirements of any perennials (species, hybrids and cultivars) to be specified both in suitable references and with reputable suppliers and then specify either of the following:
- Seed propagated
- Vegetatively propagated (e.g. cuttings, division)