can the spice rose drip such acrid fragrance hardened in a leaf? (lines 14-16)
Even though the rose has suffered some pretty serious bruising from Mother Nature, it still manages to give off a unique and (if we believe our speaker) potent fragrance. In other words, it actually thrives on the hard stuff it's had to endure.
you are flung on the sand, you are lifted in the crisp sand that drives in the wind. (lines 10-13)
OK, so this quote doesn't seem to suggest that the rose is actively fighting against the elements. But maybe that's part of the poet's point: sometimes perseverance isn't about action. Sometimes it's just staying alive, despite all the odds.