Blog Archives

Phenology update: Garlic Mustard

100_3393Garlic mustard – Alliaria petiolata; Basal rosettes have normally grown enough to be easily spotted now.  The garlic mustard in this photo is particularly robust.  Also notice the Johnson grass in the background, and ground ivy in the front.

Phenology updates: bush honeysuckle, Japanese stiltgrass, hairy jointgrass, hydrilla, orange daylily, and bohemian knotweed


Bush honeysuckle (Lonicera spp.)– fruiting, green berrys


Japanese stiltgrass (Microstegium vimineum) – has germinated and is anywhere from 1 to 6 inches tall.  This link might help ID it


Hairy jointgrass (Arthraxon hispidus) – germinated, around 1-4 inches tall.  Here is a link to help identify it


Hydrilla (Hydrilla verticillata) – has emerged

Orange daylilies (Hemerocallis fulva) – flowerbuds forming


Bohemian knotweed (Polygonum x bohemica) – Hybrid between japanese knotweed and giant knotweed.

Phenology updates: Bush Honeysuckles and Moneywort


Bush honeysuckles (Lonicera spp.)  – have begun flowering. It is a good idea to not control these with herbicide until it is done flowering to avoid unintentional damage to pollinators.


Moneywort (Lysimachia nummularia) – Has started growing.  Moneywort is a popular ground cover in landscaping but can readily take over areas, as seen in this drainage area below.


Phenology updates: Garlic Mustard, Ailanthus, Purple Deadnettle, Autumn Olive, Japanese Knotweed


Garlic Mustard (Alliaria petiolata) – Flowering

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Left: Tree-of-heaven (Ailanthus altissima)– starting to leaf out

Right: Purple Deadnettle (Lamium purpureum)- flowering

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Left: Japanese Knotweed (Fallopia japonica)- 2 – 3 feet tall

Right: Autumn Olive (Elaeagnus umbellata)- leaf out with flower buds