Sweet peas

I have never grown Sweet peas in this country so am asking for your wise guidance please.

The January sown seedlings have now been hardening off in the blowaway greenhouse day and night for several weeks and look strong with plenty of vigorous new growth.

When can I plant them out?

The plan is to plant them around the rose obelisk in the front garden, the site is quite sheltered and warm but we are still likely to get nights around the frost point.

Thanks!

 

I think you can plant them out now, as long as they have been hardened off.
I'd put them outside in their pots for a week in a sheltered spot first.

 

Thank you both!

The weather is supposed to be ok-ish from this weekend so out they'll go