Posted: 26/08/2014 at 12:53
Thanks Italophile & Fleurisa. No I haven't been feeding them. Perhaps they are lacking some nutrients but re fingernail test, I cut one off and it was very difficult to do so.
Interesting point though - I grew Butternut Squash plants from a packet of seeds (same packet) and I have what looks like another sort of pumpkin which is very large and round with dark green glossy smooth skin. Like a football. Any ideas what type it could be? I definitely didn't mix seed because so far the only pumpkin I like is the butternut squash variety and havn't bought any others. Strange. Perhaps I ought to send a photo to the seed company to query.