Bi-ennials are plants which take two years before producing seeds, flowering or growing fruit.

In their first year they will develop roots, generally a thick, deep tap root; plus stems and leaves, often referred to as a ‘basal clump’, or low mound of foliage.

If the plant is a weed, or just generally not in the right place in your garden, this can be a good time to dig it out, complete with its long tap root.

Honesty (Lunaria) a cottage garden favourite, is an ornamental bi-ennial.

However, some of the food crops we grow are also bi-ennials, such as carrots. We eat the roots of the plant as they are full of sweet, sugary starch, that the plant would otherwise use as energy in its second year.

white flowered honesty, lunaria, cottage garden, bi-ennial


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