Deciduous shrubs and the perennials should be fine to install now, though as with any new planting they should be monitored for watering needs when the ground isn't frozen. A good mulch layer (perhaps 3") will help insulate their roots, but make sure mulch doesn't touch the plant crown (where stems emerge from the soil). Evergreens may be safer to wait until spring to install, since they are more at risk of winterburn damage (desiccated leaves) when planted late, since their roots won't have as much time to grow into soil layers that won't freeze. Field-grown hollies in particular can shed an alarming quantity of leaves due to transplant shock if moved at the wrong time of year; some species, like American Holly, need to be moved in late spring as a result, but we don't know how sensitive a hybrid like 'Dragon Lady' may be to transplant timing.

As an aside, Brunnera, Pieris, and Astilbe grow best in afternoon shade (either dappled from a tree or more solid shade from a building). Full sun (6+ hours a day in summer) will stress them and may cause leaf damage or a paling of the leaf color. Pieris in particular can be more vulnerable to lace bug attack (one of the few pest insects they get) when sited in too much sun. The Astilbe might be ok if the soil is consistently moist, which may require supplemental irrigation in our summers. Otherwise, woodland conditions or in the shadow of the house in the afternoon would be a better location for these three.

Additionally, Butterfly Bush can be invasive in our area, though 'Miss Molly' is one of the varieties that is supposedly seedless. If its intent is to attract butterflies, an alternative and preferably native species might be a better choice.

Nurseries are selling-down on hardy plant inventory this time of year, so may be out of several of these plants if you browse now. If so, you can still plant what's available now and check back in spring; resupply shipments tend to start arriving in earnest in March, though this timing will partly depend on the individual nursery's operations.

Miri