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July 26, 2023

Spotted Lanternfly Nymph


Be on the lookout for the half inch wide red, black and white nymphs of the Spotted Lanternfly; this is the last stage of their life cycle before they molt and become adults able to fly, and lay eggs.

Although they are not harmful to humans (they don't bite or sting), they cause damage to many crops such as fruit trees, soybeans and grapevines.

According to an article by Scott Fallon at, some natural predators are beginning to attack Spotted Lanternflies; among them a parasitic wasp that cau ses damage to the Lanternfly egg sacs, and spiders, birds and praying mantises that eat them.

Nevertheless, if you see the nymphs, squash them by approaching from the front rather than from behind, as they tend to respond more quickly to attacks from behind.


There are many varieties of Hibiscus plants; two that are currently in bloom at the Arboretum are Hibiscus moscheutus and Hibiscus syriacus.

Hibiscus moscheutus (Swamp Rose Mallow) is a herbaceous perennial that produces dinner plate sized flowers. The plants can reach 3-7 feet tall by 2-4 feet wide. New growth is slow to emerge in spring, but grows quickly thereafter. Hibiscus moscheutus cv. Kopper King is a pretty shade of pink with a dark pink throat. A bright red Hibiscus moscheutus (possibly 'Lord Baltimore') is blooming nearby.

Hibiscus syriacus (Rose of Sharon) is a close relative of H. moscheutus. A native of eastern Asia, it is a vigorous, upright, vase-shaped, multi-stemmed, deciduous shrub which grows to 8-12 feet tall. Currently in bloom at the Arboretum are a white flowered plant, Hibiscus syriacus cv. Diana and the blue flowered H. syriacus 'Blue Bird'.

Several other varieties are also in bloom, why not visit and check them out for yourself?

Hibiscus Moscheutus Hibiscus Moscheutus cv Kopper King Hibiscus Syriacus Blue Bird Hibiscus Syriacus cv Diana

Click an image to see them all in our website's picture gallery. Picture credits: Margery Ennist.


Several of our previously recorded events are available to watch on-line.

See our Prerecorded Events page for more information and to register.

Retail Partners

When shopping at our fine Retail Partners, please remember to present your Membership card at the beginning of your check out transaction. Our Retail Partners need to enter the discount at the beginning of that process.

If you have not yet used this wonderful Member Benefit, you can view our full list of Retail Partners by clicking here.

You can register and pay on line on our Events page and Membership page and subscribe to this newsletter here: complete directions for subscribing.


Friends of The Frelinghuysen Arboretum
Post Office Box 2267
Morristown, NJ 07962

Voicemail: 973-937-8803


Morris County Park Commission Logo
The Frelinghuysen Arboretum is a facility of
the Morris County Park Commission
  • Frelinghuysen, Willowwood and Bamboo Brook Arboreta grounds are open 7 days a week, from 8am to dusk
  • The Haggerty Education Center is now open Tuesdays through Saturdays from 10:00 AM to 4:00 PM. The building remains closed on Sundays and Mondays.
  • Parking is limited. Other buildings remain closed. Portajohns are available.
  • HUNTING IN THE PARKS - See the Morris County Park Commission website.