Invasive Plants Fall Campaign Day 5

Nature Reports
By J. Millen

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Common Hawthorn Crataegus monogyna

Not a native and considered invasive in some places, this shrub is not listed as an invasive plant in BC. One concern is its hybridization with the native Black Hawthorn. However there are a great many Hawthorns on my property and I don’t want it to expand its territory. I found and pulled six small plants on a quick walk around. Seedlings appear at edges of the woods, seeming to need more light and heat than is available in the deeper woods.

The red berries have medicinal value and can be eaten, though they are not very appealing.

Fig 1 Hawthorn trees are decorative beside the driveway

Fig 2 Berries are eaten by birds later in the winter
Fig 3 Summer of 2018 drought was hard on many youg trees and some well established shrubs. This Hawthorn may not survive.

Fig 4 Seedling Hawthorns are not common on my property depite a vast supply of berries
Fig 5 Young hawthorns have a deep root