Melica's picture

Himalayan Balsam

Observed: 10th April 2010 By: Melica
S159 Neighbourhood Nature - course complete
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Large seedlings - about 3-4cm across both seed leaves.

Species interactions

No interactions present.

Species with which Himalayan Balsam (Impatiens glandulifera) interacts


Kluut's picture

Seeds can lay dormant for

Seeds can lay dormant for several years - I pulled the last seedling here in the garden at least 4 years after the last plant flowered and set seed.

anonymous spotter's picture

Himalayan Balsam

A dreadful plant which crowds out native species. It has tremendous survival abilities besides the seed bank: if cut down it will sprout again, and if pulled up it can re-root from the nodes on the stem. As a final trick, it can produce cleistogamous flowers (they self-fertilise without opening fully).
I've pulled a good few tonnes in my time, sadly to little effect. Goat browsing is effective, but doesn't deal with the seed bank.

Kluut's picture

A little harsh

Dreadful is a little harsh - it is actually a very impressive, decorative and easily grown garden plant. If there was a sterile clone, that should be in every garden.
The problem is that it is hardy, produces plentiful seed and is a typical busy-lizzie in that it can be easily propagated by just about every method known, including taking of very small cuttings.
Great plant - wrong place ie. in the UK.