In terms of
landscape design, it is usually desirable to
have some variation in form of the plants
and
hardscape included in beds and borders.
If the planting is dominated by rounded or
horizontal forms, you will need to install a
few plants or features with a vertical
orientation.
The plants listed include those with an overall
vertical form and with spike-type or non-spike-like flowers and
those with only spiked flowers.
