Hello everybody

I've been lurking for quite a while and learning loads but now I have
a question of my own.

A few weeks ago I was walking round a garden centre and a dahlia
display caught my eye. I ended up buying three packs of tubers - D.
'Weissensee', D. 'Esther' and D. 'Jeanne d'Arc'. I didn't really know
what to do with them, but the book said to start them into growth in
seed trays of multipurpose compost, so that's what I did.

Anyway, fast-forward to today and Weissensee has put on about 15cm of
top growth, Esther about 5cm and Jeanne d'Arc is just starting to
sprout.

Is it too early to plant these out yet? I'm concerned that they'll get
hit by frost if I plant them now but on the other hand I put 2 tubers
in each seed tray (3 for Weisensee, since that was what was in the
pack) and if I leave them too long I imagine the roots will get all
intertwined and I'll check their growth when it comes to putting them
in the ground.

I'm in Kent, by the way, so I've apparently I've got at least 3 weeks
before the frost risk has passed.

Many thanks for any insights

Cheers

Neil