Plant Question

[Danny]

Whilst driving in slow moving traffic the toher morning (on the way to work) I spotted some Greater Knapweed growing at the side of the road. Among the usual blooms were some which were *white*. Anybody ever seen this before?

Danny

[m_galathea]

Hi Danny,
I sometimes notice white forms of flowers too - including Greater Knapweed on Springhead Hill a few days ago. Growing too were white forms of Self-heal and Pyramidal Orchid. I think it possibly has something to do with areas that are low in nutrients, although don't quote me on that.

Alexander

[Dave McCormick]

Would this be the same as the rarer white foxglove? Cuae you mostly get pink ones, but I have seen quite a few white ones latley.

[m_galathea]

Yes it can happen in most species, although bear in mind that these white foxgloves are also cultivated.
Alexander

[eccles]

There was a white pyramid orchid at Collard Hill during the recent Large Blue emergence. I have no idea if it was anything to do with nutrient availability but it was right next to a normal pink one.