dickm":384p7cpx said:
Eric The Viking":384p7cpx said:
but I've never seen a seedling. They may grow at significant pace.
IIRC, the seeds need to be exposed to high temperatures or smoke compoinents (forest fires) before they germinate. Maybe suggest that the primary school tries an experiment
They won't need any encouragement!
I Wikipedalled: apparently Wellingtonia is the European name for the Giant Sequoia, of which there is supposedly just the one species remaining. Not to be confused with the Coastal Sequoia, wot is taller but not bigger (by volume). These are apparently more conical and sort-of dumpier (if you can say that about the biggest tree in the world!).
You're dead right about the forest fires. It seems that lack of suitable burning -- it's gotta take out the scrub at ground level, but not kill the entire tree -- means that they're slowly dying out.
The present mature trees will probably die before saplings replace them. The seeds do germinate, but the saplings die off in the first year, without post-fire ash and bare ground. Fires also cause the cones to open.
Mind yew, our Wellingtonias were all imported way back, and grown successfully in some nursery plantation somewhere (one would guess), so the situation can't be completely hopeless.
Truly wondrous things, trees.*
E.
*I was going to say, "Spotted Owl drumstick, anyone?", but thought it might be/have poor taste...