related plantS Buphthalmum
salicifolium, willowleaf oxeye, has
shorter, 1- to 2-ft.-tall stems, but they
are weak and require support. Cutting
back by half at planting or in late
spring will often help to reduce the
flopping problem, although it does not
offer a complete cure. Deadheading
will prolong bloom. Cut plants back
after flowering to clean up toppled
stems.
Teucrium chamaedrys
germander
lamiaceaePurple flowers; shiny evergreen leaves
12 in. high; 12–24 in. wide
Full sun
Blooms June–July
Zones 4–9
pruning Shear and shape plants in
the early spring to about 6 in. from the
ground if they grow leggy or woody, or
if they are being used for hedging.Telekia speciosa