OK, found it in the Ganache Command Line guide:
--defaultBalanceEther: Amount of ether to assign each test account. Default is 100.
ganache-cli --help doesn't quite tell you everything that you need to know...
The value set via the
--defaultBalanceEther parameter doesn't seem to have any impact on the amount of ether assigned to each test account (as suggested in the docs). I was, however, able to achieve my purpose by explicitly "declaring" an account with a large enough balance. For example:
The first part of the
account parameter value is the private key of the account, which must be given as a 64-character hexadecimal string (i.e.,
0x followed by 64 hexadecimal-base characters).
The second part of the
account parameter value is the balance, which can be provided in either decimal or hexadecimal format.