Any liquid fertilizer with a ratio roughly 3:1:2 will work. Somehow or another, fertilizer manufacturers convinced us that we need a specialized fertilizer for different plant types. We don't!! And neither do the plants :-) It is just a marketing strategy to sell more and varied products unnecessarily. Most plants regardless of type will access and absorb nutrients in that ratio so no need to have half a dozen fertilizer types on hand when one will do.

To that extent, something like Dyna Gro's Foliage Pro (9-3-6) or even Miracle Gro (24-8-16) will work perfectly well.