In most spells and potions, you can easily switch between using fresh herbs with dried, and whole herbs with ground herbs. If you follow what is described as the "classic" version of Love Spell #9, each ingredient is added in multiples of nine. My suggestion is that if you wish to substitute ground cloves for whole, use nine "pinches" of ground clove. Any larger portion may be overwhelming. If you Google search Love Spell #9, you will find another recipe that is totally different than the original, but the ingredients may be easier for you to find.
I'd like to add in a word of caution here. A few of the sites that contain this recipe warn against using it. The cautions are that the results are potent, difficult to control and long lasting.
Here are a couple links to things you might want to consider before using this potion:
love potion number nine
Do love spells work?
If you think the potion may not be for you, you could check out some other love spells:
Free Love Spells