What is Herbaceous perennials plants?

Herbaceous Garden Plants

By Larry Hurley - Behnkes Perennial Plant Buyer/Manager

There are lots of different hibiscus out there. Tropical Hibiscus are used as landscape plants in Hawaii, Florida and other climes that are usually warm—or even tropical—year round. Here we use them as patio plants in the summer, and houseplants in the winter.

The shrub, Rose of Sharon, is a Woody Hibiscus. Officially Hibiscus syriacus, it is the National Plant of South Korea. Rose of Sharon does well here but has a reputation for weediness, although some of the newer forms don’t seed out into the garden like the older ones did.

What I am writing about is a third type of Hibiscus, the that die to the ground each winter, overwinter as a crown, and resprout in late spring to flower in summer. Most of the perennial hibiscus that we sell are hybrids between several species, many of which are native to Maryland. You should be able to see them in bloom in summer in marshy areas (for example, where the Patuxent River crosses Highway 4 east of DC; big white flowers).

Behnke Nurseries has sold perennial, or hardy, hibiscus for many years. Through a relationship with the breeder, Robert Darby, we were the first to sell Hibiscus ‘Lord Baltimore, ’ the classic red. This was back in the 1950’s, when Mr. Darby was working part time at Behnke’s, in addition to his “real” job at USDA. Mr. Darby also released the popular pink hybrids ‘Lady Baltimore and ‘Anne Arundel, ’ and ‘Turn of the Century, ’ which looks like a pink and red pinwheel.

Behnke’s also released Dr. Harold Winter’s ‘Blue River II, ’ which is the classic white hibiscus. (Rumor is we may have done this a little sooner than he would have liked. One of those situations when a sharp propagator’s knife sometimes has a mind of its own.)

As with many other perennials, there has been an explosion of releases of hibiscus cultivars in the last fifteen years or so. Breeders have focused on: flower size (bigger); flower shape (petals that overlap to give a fuller appearance); flower color; and plant height (some shorter cultivars that are great for containers).

Our best selection is in mid-summer when they are blooming. They also are a bit difficult to overwinter...

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DALY: Use care when planting around septic drainfields  — Gwinnettdailypost.com
Shallow rooted annual and perennial herbaceous plants can be planted closer to the drain fields since they do not have invasive roots. Turfgrass can be grown over the drain field and is beneficial since it helps hold the soil in place.

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