Hi Lazy

It would appear from most of the descriptions on this cultivar that ÂJoan Leach is what can best be described as a Âlax upright and can be grown as either a bush (18"  24") or trailer in a hanging pot.

Regarding the hardiness, H3 as defined by the EGF (European Garden Flora) is equivalent to Zone 7.

As with most fuchsias the like good light without excessive heat and if you could provide a site that receives shade in the hottest part of the day this will help the plant to thrive.

See link for further information.

Hope this helps.

Tight....

Here is a link that might be useful: Hardiness Chart