Names proposed:
Summership/Summershipping: The flowers hawkbit and clover both bloom in July. [Indi-Rah]
Moonship/Moonshipping: Hawkbit asks Clover to become his mate when they are sitting under the full moon. [Myrkin]
Lastship/Lastshipping: Clover and Hawkbit are the last in tv-series to become a couple. [Myrkin]
----
Well... I was thinking about calling this pairing Lastship, because Hawkbit and Clover are the last to become a couple in tv-series, although Clover tried to move their relationship in this direction way before Bigwig met Spartina (Clover asked Hawkbit on a date in one of the first episodes of 3rd season). Then again, this might not be a very good name...
Another option could be this: Moonship or Fullmoonship. Hawkbit sort of proposed to Clover when they were sitting under the full moon, so...