A stabilizer (10) for an in-ground member (12) includes: a mounting collar
(16) having a channel (18) extending therethrough; a plurality of arms
(20a-20d) having respective collar ends (30a-30d), the collar ends being
adapted to extend through the channel and engage with the mounting
collar; and a resilient member (40) being sized (a) to be disposed within
the channel between the collar ends and (b) to be engaged by the
in-ground member so as to urge the resilient member against the collar
ends to force the collar ends against the mounting collar, whereby to
rigidify the stabilizer. A method is disclosed for installing the
above-described in-ground member into the ground to dispose a portion of
it beneath the surface of the ground and to leave a portion of it
extending above the surface of the ground. The method includes: inserting
the collar ends (30a-30d) through the channel (18) of the mounting collar
(16) so that the collar ends engage with the mounting collar; inserting a
resilient member into the channel (18) so that the resilient member
supports the collar ends, engaging the in-ground member with the
resilient member; and driving the plurality of arms into the ground.