In article , Jeff Layman
wrote:

As to watering, they will survive a week or two without water (and should
recover when watered), but several weeks in August is pushing it a bit!

My bay tree and sage have had to put up with the whole month of August
with no-one but god to wate3r their pots for many years. Both looking
fine still!

But last year three lavenders (admittedly in their first few months)
kicked the bucket under this treatment.

Many thanks for your help.

Lazarus